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Estimating The Capacity Of Visual Short-Term Memory: A Transcranial Doppler Sonography Study, Natasha Ann Barrett
Estimating The Capacity Of Visual Short-Term Memory: A Transcranial Doppler Sonography Study, Natasha Ann Barrett
Psychology Theses
Estimates of the capacity of visuospatial short-term memory (VSTM) have ranged from less than 1 item to 4 +/- 1 items. The purpose of the present study was to find the capacity of VSTM by looking at the contribution of the other working memory systems (phonological loop and central executive) and determine the factor that limits VSTM capacity (either number of objects or object complexity). In this study, the psychophysiological measure of cerebral blood flow velocity also was incorporated to determine whether changes in cerebral blood flow velocity were indicative of VSTM performance and capacity. Both performance measures and cerebral …