Signal-detection analysis of hemispheric differences in visual recognition memory.

Journal Article

In the present experiment, subjects decided on each trial whether or not a unilaterally presented probe digit was a member of a previously memorized set of two, three, or four digits. The probe was presented at a near-threshold duration and followed by a visual pattern mask. Signal-detection estimates of detectability and response bias were obtained from subjects' confidence ratings regarding their decisions. The detectability of the probe in memory was significantly better when the probe was presented to the right visual field-left hemisphere than when presented to the left visual field-right hemisphere. The response criterion became significantly more lax as memory-set size increased, but only for probes presented to the left visual field-right hemisphere. The present results are consistent with reaction-time studies using verbal stimuli that indicate a left hemisphere advantage in the efficiency of memory comparison.

Full Text

Duke Authors

Cited Authors

  • Madden, DJ; Nebes, RD; Berg, WD

Published Date

  • December 1, 1981

Published In

Volume / Issue

  • 17 / 4

Start / End Page

  • 491 - 501

PubMed ID

  • 7344816

Pubmed Central ID

  • 7344816

International Standard Serial Number (ISSN)

  • 0010-9452

Digital Object Identifier (DOI)

  • 10.1016/s0010-9452(81)80057-3


  • eng

Conference Location

  • Italy