Ebook: Cortico-Hippocampal Interplay and the Representation of Contexts in the Brain
Author: Dr. Robert Miller (auth.)
- Tags: Neurosciences, Computer Appl. in Life Sciences
- Series: Studies of Brain Function 17
- Year: 1991
- Publisher: Springer-Verlag Berlin Heidelberg
- Edition: 1
- Language: English
- pdf
1. 1 Contexts The principal issue with which this monograph deals is the role of the hippocam pus in establishing and using representations of contexts for information processing. However, before this issue can be addressed directly, it is necessary to ask "what is meant by the word 'context' ?". The first answer which comes to mind is likely to be something along the following lines: "A context is a framework (or background) of information with respect to whieh more specific 'items' ofinformation can be identified and manipulated". This answer may be correct, but it begs a fundamental question. Why should it be necessary to subdivide information into specific "items" of information, and the more global backgrounds, or frameworks? This question is especially pertinent if we are thinking of information representation in the brain, since neuroscientists (or at least the vast majority of them) believe that the basic way in whieh patterns of information are encoded in the brain is as combinations of connections, selected in a variety of ways. Since both "items" of information and "contexts" are just such patterns, apparently differing only in size, it is far from clear why there should be a categorical division between the two. ! This question is relatively new in the neurosciences. However, in a somewhat different guise it has been alive for a long time, since the publication ofImmanuel Kant's Critique 01 Pure Reason.
Content:
Front Matter....Pages i-xv
Front Matter....Pages 1-1
Historical Introduction....Pages 3-10
Designs for a Prototype Cerebral Cortex....Pages 11-32
Front Matter....Pages 33-33
Anatomy of the Hippocampal Complex and Related Regions....Pages 35-59
Discovery and General Behavioural Correlates of the Hippocampal Theta Rhythm....Pages 60-86
The Septum as a Pacemaker for the Hippocampal Theta Rhythm....Pages 87-98
Subdivision of Theta Types According to Sources of Extra-Hippocampal Control....Pages 99-109
Evidence for Multiple Sources of Theta Generation in the Hippocampus and Related Structures....Pages 110-127
Towards a Neuronal Model to Account for the Laminar Waveforms of Theta Activity....Pages 128-156
Front Matter....Pages 157-157
Cortico-Hippocampal Interaction: Theory, Implications and Predictions....Pages 159-188
Theta Activity and Learning....Pages 189-215
Synopsis and Epilogue....Pages 216-223
Back Matter....Pages 224-269
Content:
Front Matter....Pages i-xv
Front Matter....Pages 1-1
Historical Introduction....Pages 3-10
Designs for a Prototype Cerebral Cortex....Pages 11-32
Front Matter....Pages 33-33
Anatomy of the Hippocampal Complex and Related Regions....Pages 35-59
Discovery and General Behavioural Correlates of the Hippocampal Theta Rhythm....Pages 60-86
The Septum as a Pacemaker for the Hippocampal Theta Rhythm....Pages 87-98
Subdivision of Theta Types According to Sources of Extra-Hippocampal Control....Pages 99-109
Evidence for Multiple Sources of Theta Generation in the Hippocampus and Related Structures....Pages 110-127
Towards a Neuronal Model to Account for the Laminar Waveforms of Theta Activity....Pages 128-156
Front Matter....Pages 157-157
Cortico-Hippocampal Interaction: Theory, Implications and Predictions....Pages 159-188
Theta Activity and Learning....Pages 189-215
Synopsis and Epilogue....Pages 216-223
Back Matter....Pages 224-269
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