Affecting speed and accuracy in perception.
An account of affective modulations in perceptual speed and accuracy (ASAP: Affecting Speed and Accuracy in Perception) is proposed and tested. This account assumes an emotion-induced inhibitory interaction between parallel channels in the visual system that modulates the onset latencies and response durations of visual signals. By trading off speed and accuracy between channels, this mechanism achieves (a) fast visuo-motor responding to course-grained information, and (b) accurate visuo-attentional selection of fine-grained information. ASAP gives a functional account of previously counterintuitive findings, and may be useful for explaining affective influences in both featural-level single-stimulus tasks and object-level multistimulus tasks.
Leiden Institute for Brain and Cognition, Institute of Psychology, Leiden University, Pieter de la Court building, Wassenaarseweg 52, 2333 AK, Leiden, The Netherlands, b.r.bocanegra@fsw.leidenuniv.nl.
Bruno R
BR
Bocanegra
D000293:Adolescent; D000328:Adult; D000339:Affect / Q000502:physiology*; D001288:Attention / Q000502:physiology*; D005260:Female; D006801:Humans; D007266:Inhibition, Psychological; D007600:Judgment; D008297:Male; D010364:Pattern Recognition, Visual; D010775:Photic Stimulation; D011597:Psychomotor Performance; D011930:Reaction Time / Q000502:physiology*; D013028:Space Perception / Q000502:physiology*; D055815:Young Adult