PMID- 1532017 OWN - NLM STAT- MEDLINE DCOM- 19920416 LR - 20191210 IS - 0278-7393 (Print) IS - 0278-7393 (Linking) VI - 18 IP - 1 DP - 1992 Jan TI - Retention and disruption of motion information in visual short-term memory. PG - 151-6 AB - Velocity discrimination thresholds for drifting luminance gratings were measured as a function of the time interval between test and reference gratings, using a two-interval, forced-choice procedure. Discrimination thresholds, expressed as Weber fractions (delta V/V), were independent of interstimulus intervals (ISIs) ranging from 1-30 s, demonstrating perfect short-term retention of velocity information. When a third grating was briefly presented halfway through a 10-s ISI, memory masking was observed. Discrimination thresholds in memory masking were unaffected by maskers of the same velocity but increased by 100% when test and masker velocity differed by a factor of 2. The results are interpreted with reference to a model where the short-term memory for simple stimulus attributes is assumed to be organized in terms of arrays of memory stores linked in a lateral inhibitory network. FAU - Magnussen, S AU - Magnussen S AD - Vision Laboratory Institute of Psychology, University of Oslo, Norway. FAU - Greenlee, M W AU - Greenlee MW LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Exp Psychol Learn Mem Cogn JT - Journal of experimental psychology. Learning, memory, and cognition JID - 8207540 SB - IM MH - Acceleration MH - *Attention MH - Humans MH - *Memory, Short-Term MH - *Motion Perception MH - *Orientation MH - Perceptual Masking MH - *Retention, Psychology MH - Sensory Thresholds EDAT- 1992/01/01 00:00 MHDA- 1992/01/01 00:01 CRDT- 1992/01/01 00:00 PHST- 1992/01/01 00:00 [pubmed] PHST- 1992/01/01 00:01 [medline] PHST- 1992/01/01 00:00 [entrez] AID - 10.1037//0278-7393.18.1.151 [doi] PST - ppublish SO - J Exp Psychol Learn Mem Cogn. 1992 Jan;18(1):151-6. doi: 10.1037//0278-7393.18.1.151.