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One of several tenable hypotheses that can be proposed to explain the complex dynamics of spatially selective hippocampal neural activity postulates that the region of space over which a given cell receives its external input is actually much smaller than the classical ‘place field.’ According to this notion, the later portions of the field reflect some form of network hysteresis resulting from ‘reverberatory’...
Abstract. Although information may be stored in the brain as changes in the strength of existing synapses, formation of new synapses has long been thought of as an additional substrate for memory storage. The identification of subcellular structural changes following learning in mammals poses a serious needle-in-the-haystack problem. In most attempts to demonstrate structural plasticity during learning,...
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