Astrocyte-Neuron Interaction During One-trial Aversive Learning in the Neonate Chick **These results were originally presented at the Second Annual International Behavioral Neuroscience Society Conference, Clearwater Beach, Florida, USA, 22–25 April 1993 (original) (raw)

Neuroscience & Biobehavioral Reviews, 1996

Abstract

During two specific stages of the Gibbs-Ng model of one-trial aversive learning in the neonate chick, we have recently found unequivocal evidence for a crucial involvement of astrocytes. This evidence is metabolic (utilization of the astrocyte-specific energy store, glycogen, during normal learning and inhibition of memory formation by the astrocyte specific metabolic inhibitors, fluoroacetate and methionine sulfoximine) as well as physiological (abolition of memory formation in the presence of ethacrynic acid, an astrocyte-specific inhibitor of cellular reaccumulation of potassium ions). These findings are discussed in the present review in the framework of a more comprehensive description of metabolic and physiological neuronal-astrocytic interactions across an interstitial (extracellular) space bounded by minute processes from either cell type.

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