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Do multiple cortical–subcortical interactions support different aspects of consciousness?

Published online by Cambridge University Press:  01 May 2007


Daniel Collerton
Affiliation:
Northumberland, Tyne, and Wear NHS Trust, Bensham Hospital, Gateshead NE8 4YL, United Kingdom;
Elaine Perry
Affiliation:
Wolfson Research Centre, Institute for Ageing and Health, Newcastle General Hospital, Newcastle-upon-Tyne NE4 6BE, United Kingdom. daniel.collerton@ghnt.nhs.uke.k.perry@ncl.ac.uk

Abstract

Merker's core idea, that the experience of being conscious reflects the interactions of actions, targets, and motivations in the upper brainstem, with cortex providing the content of the conscious experience, merits serious consideration. However, we have two areas of concern: first, that his definition of consciousness is so broad that it is difficult to find any organisms with a brain that could be non-conscious; second, that the focus on one cortical–subcortical system neglects other systems (e.g., basal forebrain and brainstem cholinergic systems and their cortical and thalamic target areas) which may be of at least equal significance.


Type
Open Peer Commentary
Copyright
2007 Cambridge University Press

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