Abstract
Schröger, E., & Winkler, I. (1995). Presentation rate and magnitude of stimulus deviance effects on human pre-attentive change detection. Neuroscience Letters, 193(3), 185-188.
Presentation rate and magnitude of stimulus deviance effects on human pre-attentive change detection
The present study investigated the effects of the inter-stimulus interval (ISI) and the magnitude of deviance on the mismatch negativity (MMN), an event-related potential index of pre-attentive change detection. The latency of the MMN to infrequent changes in intensity and duration was prolonged by increasing the ISI from 400 ms to 4 s. Results indicate that these features are preserved in sensory memory for several seconds. By increasing the ISI the sharpness of the neural traces decreases, thus prolonging the change detection process.
Contact
Cognitive and Biological Psychology
University of Leipzig
Faculty of Life Sciences
Institute of Psychology
Neumarkt 9-19
D-04109 Leipzig
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Dagmar Schrödl
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Email: dagmar dot schroedl at uni-leipzig dot de
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