Philip Pettit has drawn together here a series of interconnected essays on three subjects to which he has made notable contributions. The first part of the book discusses the rule-following character of thought. The second considers how choice can be responsive to different sorts of factors, while still being under the control of thought and the reasons that thought marshals. The third examines the implications of this view of choice and rationality for the normative regulation of social behaviour.

New research on children's executive functioning and self-regulation has begun to reveal important connections to their developing social understanding (or "theories of mind") and emotional competence. The exact nature of the relations between these aspects of children's social and emotional development is, however, far from being fully understood. Considerable disagreement has emerged, for instance, over the question of whether executive functioning facilitates social-emotional understanding, or vice versa. Recent studies linking the development of children's social understanding with aspects of their interpersonal relationships also raise concerns about the particular role that social interaction plays in the development of executive function. Three key questions currently drive this debate: Does social interaction play a role in the development of executive function or, more generally, self-regulation? If it does play a role, what forms of social interaction facilitate the development of executive function? Do different patterns of interpersonal experience differentially affect the development of self-regulation and social understanding? In this book, the contributors address these questions and explore other emerging theoretical and empirical links between self-regulation, social interaction, and children's psycho-social competence. It will be a valuable resource for student and professional researchers interested in executive function, emotion, and social development.

The Oxford Handbook of Human Development and Culture provides a comprehensive synopsis of theory and research on human development, with every chapter drawing together findings from cultures around the world. This includes a focus on cultural diversity within nations, cultural change, and globalization. Expertly edited by Lene Arnett Jensen, the Handbook covers the entire lifespan from the prenatal period to old age. It delves deeply into topics such as the development of emotion, language, cognition, morality, creativity, and religion, as well as developmental contexts such as family, friends, civic institutions, school, media, and work. Written by an international group of eminent and cutting-edge experts, chapters showcase the burgeoning interdisciplinary approach to scholarship that bridges universal and cultural perspectives on human development. This "cultural-developmental approach" is a multifaceted, flexible, and dynamic way to conceptualize theory and research that is in step with the cultural and global realities of human development in the 21st century.

A pioneer case study and theoretical analysis of the phenomena of multiple personality. Prince demonstrated that multiple personalities could be artificially induced in the trance state, applied and developed the concept of dissociation in the explanation of these phenomena, and presented a classic description of relevant therapy.

Research is finding a way to measure the problem. This seminal 2-volume book contains hundreds of the most useful measurement tools for use in clinical practice and in research. All measures are critiqued by the editors, who provide guidance on how to select and score them and the actual measures are wholly reproduced. This second volume, focusing on measures for use with adults, whose conditions of concerns are not focused on family relationships or couple relationships, includes an introduction to the basic principles of measurement, an overview of different types of measures, and an overview of the Rapid Assessment Inventories included herein. Volume II also contains descriptions and reviews of each instrument, as well as information on how they were selected and how to administer and score them. This book is designed as the definitive reference volume on assessment measures for both practice and research in clinical mental health. This fifth edition of Corcoran and Fischer's Measures for Clinical Practice and Research is updated with a new preface, new scales, and updated information for existing instruments, expanding and cementing its utility for members of all the helping professions, including psychology, social work, psychiatry, counseling, nursing, and medicine. Alone or as a set, these classic compendiums are powerful tools that clinicians and researchers alike will find an invaluable addition to - or update of - their libraries.

For the first time in a single volume, distinguished experts address the complex issues -- issues rarely confronted in empirical studies of patients with schizophrenia -- and controversial research surrounding the assessment of negative symptoms and cognitive deficits in patients with schizophrenia.

Despite recent advances in our understanding of schizophrenia, still notably absent is consensus in assessing negative symptom treatment response. What is the most effective assessment method -- given the varying methodologies and contradictory results to date? What constitutes an adequate response? Which medication -- none is specifically indicated and licensed for negative symptom treatment -- yields the best results? What are the indications for use of this medication? Which instrument best measures negative symptom treatment response (eight rating scales are analyzed here)? Reaching consensus among clinicians and researchers alike is even more difficult because assessment is often thwarted by extrapyramidal side effects of medications, similarities to depressive symptoms, and secondary effects of psychotic experiences.

In addition to clarifying these pressing issues, Negative Symptom and Cognitive Deficit Treatment Response in Schizophrenia also discusses - The importance of measuring the experience of emotion versus the more traditional objectively measured symptoms in patients with schizophrenia, and how deficits in emotional experience may resist treatment -- even in treatment-responsive patients.

- The family as an often overlooked source of information about negative symptom improvement or worsening, and the impact of negative symptoms on patients' relatives.

- How treatment affects social functioning and subjective experience of "quality of life," and the importance of neurocognitive dysfunction in the social deficits of schizophrenia, which often persist despite significant amelioration of other symptoms.

- Specific guidelines for assessing neurocognitive treatment response. Cognitive enhancement is a major factor in improving the quality of patients' lives.

- The latest research on the neurobiology of negative symptoms, including the role of various neurotransmitter systems and brain regions in mediating negative symptom pathology. Also discussed is single vs. multiple pathophysiological processes and single treatment modality vs. distinct treatments for different aspects of negative symptoms.

- How to distinguish "pure" negative symptoms from deficit symptoms (i.e., those that persist for at least 1 year and are not secondary to factors such as depression, medication side effects, anxiety, delusions, and hallucinations), and which treatment is indicated for each.

Highlighted by patient vignettes, this in-depth guide will be welcomed by all clinicians who treat patients with schizophrenia and want to know and document whether their interventions ameliorate negative symptoms and cognitive dysfunction, and by all researchers who study schizophrenia, particularly those interested in clinical issues and treatment studies.

Research on the influence of culture on consumer decision-making and consumption behavior has witnessed tremendous growth in the last decade. With increasing globalization, managers are becoming increasingly aware that operating in multiple markets is crucial for firms' survival and growth. As the world's growth engine shifts from Europe and North America to Asia and Latin America, it has become apparent that an inward-looking and domestic focus strategy will not be sustainable in the long run. And success in foreign markets requires marketers to understand not just what consumers in these markets need but also how they think, behave, consume, and purchase. Numerous studies have documented cultural differences in values and beliefs, motivational orientations, emotions, self-regulation, and information-processing styles, and the effects of these cultural variations on consumer behavior such as brand evaluation, materialism, and impulsive consumption. In this volume, experts from a variety of disciplines and perspectives trace the historical development of culture research in consumer psychology and examine the theoretical underpinnings that account for these findings and the current state of the field. Collectively, the chapters provide a forum for researchers to engage in thoughtful debates and stimulating conversations and offer directions for future research.

Borderline Personality Disorder: Tailoring the Psychotherapy to the Patient explores the challenge of treating patients with borderline personality disorder. These patients make up a large segment of the difficult-to-treat population. The instability of their relationships, the intensity of their affective responses, and their proneness to paranoid reactions all contribute to their difficulty in working consistently and constructively in the psychotherapeutic situation. When one adds these difficult patient problems to the therapist's quandary about how expressive or supportive to be, therapists are indeed often confronted with a challenging therapeutic task. The book begins with a review of the clinical and research literature pertaining to the treatment of borderline patients. It presents a unique, empirically based intensive study of three borderline patients, based on transcripts of audiotaped therapy sessions. The research methodology is reviewed, and clinically oriented descriptions of the three patients, their psychotherapy processes, and their outcomes are included. Following an overall summary of results, conclusions regarding the differential indications for supportive versus expressive emphasis in psychotherapy are discussed. In their research, the authors recorded every psychotherapy session and studied a randomly selected group of sessions. Therefore, the reader is provided with increased insight into what is most effective with what kind of patient at a given point in the therapy process.

For courses in Motivation An engaging approach that makes motivation science accessible and relevant Revel Motivation Science presents classic and contemporary approaches to the study of motivation in a way that is fun, dynamic, and relevant to students' lives. Combining insights from psychology, education, health, business, and sports, authors Edward and Melissa Burkley emphasize the influences of cognitive, emotional, social, and biological processes upon motivation. Using simple, engaging language, real-world examples, and compelling pedagogical features, the text helps students see how they can apply concepts from the field to achieve their own life goals. NOTE: This ISBN is for a Pearson Books a la Carte edition: a convenient, three-hole-punched, loose-leaf text. In addition to the flexibility offered by this format, Books a la Carte editions offer students great value, as they cost significantly less than a bound textbook. Motivation Science is also available via Revel (TM), an interactive learning environment that enables students to read, practice, and study in one continuous experience.

In this book, Chris Eliasmith presents a new approach to understanding the neural implementation of cognition in a way that is centrally driven by biological considerations. He calls the general architecture that results from the application of this approach the Semantic Pointer Architecture (SPA), based on the Semantic Pointer Hypothesis. According to this hypothesis, higher-level cognitive functions in biological systems are made possible by semantic pointers. These pointers are neural representations that carry partial semantic content and can be built up into the complex representational structures necessary to support cognition. The SPA architecture demonstrates how neural systems generate, compose, and control the flow of semantics pointers. Eliasmith describes in detail the theory and empirical evidence supporting the SPA, and presents several examples of its application to cognitive modeling, covering the generation of semantic pointers from visual data, the application of semantic pointers for motor control, and most important, the use of semantic pointers for representation of language-like structures, cognitive control, syntactic generalization, learning of new cognitive strategies, and language-based reasoning. He agues that the SPA provides an alternative to the dominant paradigms in cognitive science, including symbolicism, connectionism, and dynamicism.

For courses in Adjustment, Interpersonal Behavior, and Human Relations A conceptual and skills-based overview of relationship building in today's world Human Relations: The Art and Science of Building Effective Relationships helps students learn how to communicate more effectively within all of their personal and professional relationships. Employing a three-tiered approach to human relations, author Vivian McCann helps students to understand the psychological concepts that underlie relationships, to build the skills needed to communicate effectively, and to consider the influence of cultural norms and backgrounds throughout the relationship-building process. Revised to reflect the latest data and research, the Second Edition also includes updated information about how new technologies have greatly impacted today's relationships. NOTE: This ISBN is for a Pearson Books a la Carte edition: a convenient, three-hole-punched, loose-leaf text. In addition to the flexibility offered by this format, Books a la Carte editions offer students great value, as they cost significantly less than a bound textbook. Human Relations: The Art and Science of Building Effective Relationships, Second Edition is also available via REVEL (TM), an interactive learning environment that enables students to read, practice, and study in one continuous experience.

One out of every 75 people worldwide will be afflicted with panic disorder during their lifetime. "Treatment of Panic Disorder" presents the latest research of leading psychology, psychiatry, cardiology, internal medicine, and methodology experts working in this field. The authors address such issues as - What is panic disorder? - How is it diagnosed? - What are the current treatments? - What are the effects of these treatments? - What are the directions for future research?

On August 5, 2010, a cave-in left thirty-three Chilean miners trapped underground. The Chilean government embarked on a massive rescue effort that is estimated to have cost between ten and twenty million dollars. There is a puzzle here. Many mine safety measures that would have been more cost effective had not been taken in Chile earlier, either by the mining companies, the Chilean government or by international donors. The Chilean story illustrates a persistent puzzle: the identified lives effect. Human beings show a greater inclination to assist persons and groups identified as those at high risk of great harm than to assist persons and groups who will suffer - or already suffer - similar harm but are not identified as yet. The problem touches almost every aspect of human life and politics: health, the environment, the law. What can social and cognitive sciences teach us about the origin and triggers of the effect? Philosophically and ethically, is the effect a "bias" to be eliminated or is it morally justified? What implications does the effect have for health care, law, the environment and other practice domains? This volume is the first book to tackle the effect from all necessary perspectives: psychology, public health, law, ethics, and public policy.

The Oregon State Insane Asylum was opened in Salem on October 23, 1883, and is one of the oldest continuously operated mental hospitals on the West Coast. In 1913, the name was changed to the Oregon State Hospital (OSH). The history of OSH parallels the development and growth in psychiatric knowledge throughout the United States. Oregon was active in the field of electroshock treatments, lobotomies, and eugenics. At one point, in 1959, there were more than 3,600 patients living on the campus. The Oscar-winning movie One Flew Over the Cuckoo's Nest was filmed inside the hospital in 1972. In 2008, the entire campus was added to the National Register of Historic Places, and the state began a $360-million restoration project to bring the hospital to modern standards. The story of OSH is one of intrigue, scandal, recovery, and hope.

Multitasking is all around us: the office worker interrupted by a phone call, the teenager texting while driving, the salesperson chatting while entering an order. When multitasking, the mind juggles all the many tasks we're doing this second, this hour, this week, and tries to perform them together-sometimes with great ease, sometimes with great difficulty. We don't often stop to think about how exactly we accomplish these feats of multitasking great and small. How do we switch from one task to another? What types of multitasking are disruptive, and when are they most disruptive? And ultimately, how can we take advantage of the benefits of multitasking while alleviating its negative effects in our daily lives?
This book presents the theory of threaded cognition, a theory that aims to explain the multitasking mind. The theory states that multitasking behavior can be expressed as cognitive threads-independent streams of thought that weave through the mind's processing resources to produce multitasking behavior, and sometimes experience conflicts to produce multitasking interference. Grounded in the ACT-R cognitive architecture, threaded cognition incorporates computational representations and mechanisms used to simulate and predict multitasking behavior and performance.
The book describes the implications of threaded cognition theory across three traditionally disparate domains: concurrent multitasking (doing multiple tasks at once), sequential multitasking (interrupting and resuming tasks), and multitask skill acquisition (learning and practicing multiple tasks). The work stresses the importance of unifying basic and applied research by alternating between in-depth descriptions of basic research phenomena and broader treatments of phenomena in applied domains, such as driver distraction and human-computer interaction. The book also includes practical guidelines for designers of interactive systems intended for multitasking contexts.

In this groundbreaking book, acclaimed film music author Kevin Donnelly offers the first sustained theorization of synchronization in sound film. Donnelly addresses the manner in which the lock of the audio and the visual exerts a perceptible synergy, an aesthetic he dubs occult: a secret and esoteric effect that can dissipate in the face of an awareness of its existence. Drawing upon theories of sound from Sergei Eisenstein to Pierre Schaeffer to Michel Chion, the book investigates points of synchronization as something like repose, providing moments of comfort in a potentially threatening environment that can be fraught with sound and image stimuli. Correspondingly, lack of synchrony between sound and images is characterized as potentially disturbing for the viewer, a discomfort that signals moments of danger. From this perspective, the interplay between the two becomes the central dynamic of audio-visual culture more generally, which, as Donnelly argues, provides a starting point for a new understanding of audio/visual interactions. This fresh approach to the topic is discussed in theoretical and historical terms as well as elaborated through analysis of and reference to a broad selection of films and their soundtracks including, among others, Singin' in the Rain, Saw, Shanghai Express, and Assault on Precinct 13.

Frontotemporal Dementia provides an in-depth look at the history, various types, genetics, neuropathology and psychosocial aspects of one of the most common but least understood causes of dementia, frontotemporal lobar degeneration, from one of the world's leading centers for the study of dementia. Aided by the latest research in diagnosis, mechanism and treatment, this book captures the rich and quickly changing landscape of a devastating neurodegenerative disease, and offers up-to-date clinical advice for patient care. Frontotemporal dementia, in particular, raises psychological and philosophical questions about the nature of self, free will, emotion, art and behavior - important topics for practitioners and families to appreciate as they care for the sufferer. This book includes case studies, photographs and figures from the leaders in the field and personal communication from the researchers driving these developments.

Consciousness is a perennial source of mystification in the philosophy of mind: how can processes in the brain amount to conscious experiences? Robert Kirk uses the notion of `raw feeling' to bridge the intelligibility gap between our knowledge of ourselves as physical organisms and our knowledge of ourselves as subjects of experience; he argues that there is no need for recourse to dualism or private mental objects. The task is to understand how the truth about raw feeling could be strictly implied by narrowly physical truths. Kirk's explanation turns on an account of what it is to be a subject of conscious perceptual experience. He offers penetrating analyses of the problems of consciousness and suggests novel solutions which, unlike their rivals, can be accepted without gritting one's teeth. His sustained defence of non-reductive physicalism shows that we need not abandon hope of finding a solution to the mind-body problem.

Traditionally, impulsive and compulsive behaviors have been categorized as fundamentally distinct. However, patients often exhibit both of these behaviors. This common comorbidity has sparked renewed interest in the factors contributing to the disorders in which these behaviors are prominent. "Impulsivity and Compulsivity" applies a provocative spectrum model to this psychopathology. The spectrum model is consistent with a dimensional model for psychopathology and considers the dynamic interaction of biopsychosocial forces in the development of impulsive and compulsive disorders.

In this important work on impulsive/compulsive psychopathology, leading researchers and clinicians share their expertise on the phenomenological, biological, psychodynamic, and treatment aspects of these disorders. Differential diagnosis, comorbidity of the impulsive-compulsive spectrum of disorders, and assessment by the seven-factor model of temperament and character are discussed. Chapters are also dedicated to the antianxiety function of impulsivity and compulsivity, defense mechanisms in impulsive disorders versus obsessive-compulsive disorders, and the unique aspects of psychotherapy with impulsive and compulsive patients.

Clinical researchers and clinicians will be enlightened by this exceptional work. The information provided is supplemented with clinical vignettes, and the final chapter provides a synthetic summary that offers a unified, dynamic approach to impulsive and compulsive behavior.

Clinical research requires that some people be used and possibly harmed for the benefit of others. What justifies such use of people? This book provides an in-depth philosophical analysis of several crucial issues raised by that question.
Much writing on the ethics of research with human subjects assumes that participation in research is a distinctive activity that requires distinctive moral principles. In most contexts, we allow people to choose the activities in which they engage. By contrast, people are permitted to participate in research only after Institutional Review Boards determine that it is appropriate for them to do so. Although we assume that consent to participate in research must be preceded by an elaborate disclosure of information, we make no such assumption in many other areas of life. Although it is thought to be morally problematic to provide financial inducements to prospective subjects, we make no such assumptions when we hire people as loggers, fishermen, and fire fighters. Although we readily accept the "off-shoring" of manufacturing, many regard the off-shoring of medical research with great skepticism. This book seeks to widen the lens through which we consider such issues. When we do so, we will find that many standard principles of research ethics are difficult to defend.
The book first argues that because respect for "autonomy" has been a central tenet of research ethics, many have failed to recognize that the structure of the regulation of research is deeply paternalistic and have therefore failed to justify such paternalism. The book then rejects "the autonomous authorization" model that characterizes most writing in bioethics and argues for a "fair transaction" model. Although many worry that the use of financial payment to recruit research subjects is coercive or constitutes an undue inducement, the book argues that most of those worries are misplaced. Shifting its attention to research in developing societies, the book considers the claim that international researchers exploit research abroad often exploits its subjects. Finally, the book considers the claim that because researchers benefit from their use of research subjects, they acquire special obligations to them or their communities.

A lot of what is marketed to the public as psychology is actually quite unscientific. Attempting to counteract the tide of misinformation about what psychology really is, Popular Pscyhology: An Encyclopedia is a concise guide for anyone seeking to understand the true scientific nature of psychology. Self-help books; television specials; and articles in the popular press all serve to obscure the true intellectual and scientific premises on which the field of psychology is based. The serious work of the great psychological thinkers and schools of psychological thought is lost to the average person. High school and college students as well as the interested lay reader will want to consult this work to understand what is good in the popular presentation of psycholgy and what is unworthy of serious attention. A lot of what is marketed to the public as psychology is actually quite unscientific. Attempting to counteract the tide of misinformation about what psychology really is, this book is a concise guide for anyone seeking to understand the true scientific nature of psychology. Self-help books; television specials; and articles in the popular press all serve to obscure the true intellectual and scientific premises on which the field of psychology is based. The serious work of the great psychological thinkers and schools of psychological thought is lost to the average person. High school and college students as well as the interested lay reader will want to consult this work to understand what is good in the popular presentation of psychology and what is unworthy of serious attention. A unique and especially helful feature of Popular Pscyhology: An Encyclopedia is the Guide to Related Topics. Major topic sections list the individual entries pertinent to that idea. For example, major sections include Biological Bases of Behavior; Drugs and Chemicals; Popular Gurus and Movements; Pseudoscience; Psychological Theories and Ideas; Treatments. There are 121 entries covering such subjects as: acupuncture; alien abduction; aromatherapy; birth order; brainwashing; chemical imbalance; drpressants; Down's Syndrome; emotional intelligence; facilitated communication; Howard Gardner; gingko biloba; insanity defense; intelligence; kava; learning disability; Dr. Phil; mood disorders; Mozart Effect; nervous breakdown; parenting styles; post-traumatic stress disorder; psychiatry; seasonal affective disorder; sleep and dreaming; Tourette Syndrome. Ideas and persons familiar to the general reader or to the high school and college student are discussed in an engaging yet knowledgeable style. A general bibliography as well as further reading following each entry and a complete index make this accessible and informative work a useful addition to any library.

Personality makes us who we are and influences every aspect of our lives - from how we interact with others, to how we respond in stressful situations. Personality Psychology uses a unique organizational framework to explore the six key domains of knowledge about personality - Dispositional, Biological, Intrapsychic, Cognitive/Experiential, Social/Cultural and Adjustment. This third edition focuses on the scientific basis of current understanding, highlighting contemporary research while also covering classic viewpoints. Key features: * Updated chapter on Culture and Personality with an expanded review of international research * Extensively revised chapter on Personality Disorders, covering the DSM-5 and its hybrid model * New and refreshed pedagogy including 'Application boxes', which examine how personality theories and research are used in real-world situations * 'A Closer Look' sections, which explore core topics and influential studies to enhance students' understanding * New and updated Exercises to encourage critical reflection and the application of theory to personal experience * A fully revised chapter on Psychoanalytic Approaches to Personality, including historical perspectives and extended coverage of Object Relations Theory and Ego Psychology Connect (R) Psychology is McGraw Hill's digital learning and teaching environment. Students - You get easy online access to homework, tests and quizzes designed by your instructor. You get immediate feedback on how you're doing, making it the perfect platform to test your knowledge. Lecturers - Connect (R) gives you the power to create auto-graded assignments, tests and quizzes online. The detailed visual reporting allows you to easily monitor your students' progress. In addition, you can access key support materials for your teaching, including a testbank and lecture support. Randy Larsen is the William R. Stuckenberg Professor of Human Values and Moral Development at Washington University in St. Louis. His recent classes include personality psychology and ethics for scientists. David Buss is Professor of Psychology and Chair of the Individual Differences and Evolutionary Psychology (IDEP) programme at the University of Texas at Austin. Andreas Wismeijer lectures in personality psychology and a multitude of other courses at Tilburg University and Nyenrode Business University. He is a prolific writer of articles on psychology. John Song is the interim Head of the School of Applied Social Sciences at De Montfort University, where he has also taught personality, individual differences and research methods as an Associate Professor. Stephanie van den Berg is Associate Professor at the University of Twente where she teaches statistics, data science and psychometrics to students in the behavioural sciences. Bertus Jeronimus teaches courses on personality and individual differences, as well as lifespan development and socialization, at Groningen University. He is Assistant Professor in the Faculty of Behavioural and Social Sciences.

Simple Heuristics in a Social World invites readers to discover the simple heuristics that people use to navigate the complexities and surprises of environments populated with others. The social world is a terrain where humans and other animals compete with conspecifics for myriad resources, including food, mates, and status, and where rivals grant the decision maker little time for deep thought, protracted information search, or complex calculations. Yet, the social world also encompasses domains where social animals such as humans can learn from one another and can forge alliances with one another to boost their chances of success. According to the book's thesis, the undeniable complexity of the social world does not dictate cognitive complexity as many scholars of rationality argue. Rather, it entails circumstances that render optimization impossible or computationally arduous: intractability, the existence of incommensurable considerations, and competing goals. With optimization beyond reach, less can be more. That is, heuristics--simple strategies for making decisions when time is pressing and careful deliberation an unaffordable luxury--become indispensible mental tools. As accurate as or even more accurate than complex methods when used in the appropriate social environments, these heuristics are good descriptive models of how people make many decisions and inferences, but their impressive performance also poses a normative challenge for optimization models. In short, the Homo socialis may prove to be a Homo heuristicus whose intelligence reflects ecological rather than logical rationality.

Experimental Philosophy: Volume 2 contains fourteen articles - thirteen previously published and one new - that reflect the fast-moving changes in the field over the last five years. The field of experimental philosophy is one of the most innovative and exciting parts of the current philosophical landscape; it has also engendered controversy. Proponents argue that philosophers should employ empirical research, including the methods of experimental psychology, to buttress their philosophical claims. Rather than armchair theorizing, experimental philosophers should go into the field to research how people actually think and reason. In a sense this is a return to a view of philosophy as the progenitor of psychology: inherently concerned with the human condition, with no limits to its scope or methods. In the course of the last decade, many experimental philosophers have overturned assumptions about how people think in the real world. This volume provides an essential guide to the most influential recent work on this vital and exciting area of philosophical research.