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The thalamus is a group of cells placed centrally in the brain that
serve a critical role in controlling how both sensory and motor
signals are passed from one part of the cerebral cortex to another.
Essentially, all information reaching the cerebral cortex and thus
consciousness is relayed through the thalamus. The role of the
thalamus in controlling the flow of information (such as visual,
auditory, and motor) to the cortex has only recently begun to be
understood. This book provides an in-depth look at the function of
the thalamus and its role as relayer of information to the cerebral
cortex. The authors explore how the thalamus controls messages that
are passed to the cortex and they introduce the novel suggestion
that the thalamus serves a critical role in controlling how
messages pass from one part of the cortex to another. Exploring the
Thalamus is a comprehensive, up-to-date reference for researchers.
It discusses problems concerning the function and structure of the
thalamus and concludes each chapter with thought-provoking
questions regarding future research.
Every cortical area receives input from the thalamus and projects to the thalamus. The cortex and thalamus, therefore, are inseparable partners for sensation, action, and cognition. Exploring Thalamocortical Interactions provides readers with foundational knowledge needed to understand the cellular and circuit properties of thalamocortical networks, and then goes on to consider new ideas and hypotheses, some of which are quite speculative. Some of the major themes emphasized throughout the book include: * the need for a proper classification of thalamocortical and corticothalamic circuits * the role of spike timing for thalamocortical and corticothalamic communication and the mechanisms for modulating spike timing * the organization and function of corticothalamic feedback projections * the role of higher order thalamic nuclei in cortico-cortical communication and cortical functioning * attentional modulation of thalamocortical interactions * a rethinking of efference copies and distinguishing neural signals as sensory versus motor Exploring Thalamocortical Interactions combines foundational knowledge from decades of research with fresh ideas and hypotheses on how the thalamus and cortex work together for sensation, action, and cognition.
Almost all of the messages that are received by the cerebral cortex
from the environment or from the body's internal receptors come
through the thalamus and much current thought about perceptual
processing is based on sensory pathways that relay in the thalamus.
This volume focuses on three major areas: the role of
thalamocortical communication in cognition and attention; the role
of the thalamus in communication between cortical areas; the
hypothesis that much or all of the information relayed by thalamus,
even to classical, pure "sensory" areas of cortex, represents a
corollary message being sent simultaneously to motor centers. It
presents a broad overview of important recent advances in these
areas.
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