Wolfgang Klimesch (1995) Memory Processes Described as Brain Oscillations
. Psycoloquy: 6(06) Memory Brain (1)
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Psycoloquy 6(06): Memory Processes Described as Brain Oscillations
MEMORY PROCESSES DESCRIBED AS BRAIN OSCILLATIONS
IN THE EEG-ALPHA AND THETA BANDS
Wolfgang Klimesch
University of Salzburg
Department of Physiological Psychology
Institute of Psychology, Hellbrunnerstr. 34
A-5020 Salzburg, AUSTRIA
Klimesch@edvz.sbg.ac.at
Abstract
This target article tries to integrate results in memory
research from diverse disciplines such as psychophysiology,
cognitive psychology, anatomy and neurophysiology. The integrating
link is seen in more recent anatomical findings that provide strong
arguments for the assumption that oscillations provide the basic
form of communication between cortical cell assemblies. The basic
argument is that episodic memory processes, which are part of a
complex working memory system, are reflected by oscillations in the
theta band, whereas long-term memory processes are reflected by
alpha oscillations. It is assumed that alpha and theta oscillations
serve to encode, access, and retrieve cortical codes that are
stored in the form of widely distributed but intensely
interconnected cell assemblies.
Keywords
Alpha, EEG, Hippocampus, Memory, Oscillation, Thalamus,
Theta.
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