| Abstract: | Reviews research on memory and evoked potentials (EPs) and presents new experimental data in which a storage component of the EP was identified. In Exp I, Ss performed information-processing operations on number and letter comparison tasks under 16 conditions varying stimulus, position, and relevance while EEGs were taken. In Exp II, 52 Ss were tested for short-term recall under the same 16 conditions. From Exp I, an EP storage component with a poststimulus maximum about 250 msec was found to be related to the storage of stimulus information in short-term memory. The storage component results led to a memory prediction that was substantiated in Exp II. Recall was not as closely related to 2 other, orthogonal EP components (P??? and CNV). Retrieval from and storage in short-term memory are discussed. Memory scanning rate derived from P??? latency changes with memory set size are faster than, but comparable to, RT estimates. An EP experiment dealing with levels of processing and memory is discussed, and a schematic model of some aspects of EPs that may be related to memory processes is presented. (French abstract) (26 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
