Visual vs. Spatial Contributions to Microsaccades and Visual-Spatial Working Memory

Journal of Eye Movement Research

卷:7

Joshua T. Gaunt¹  Bruce Bridgeman¹ 

[1] Department of Psychology, University of California, Santa Cruz, USA;

关键词: microsaccades;    attention;    working memory;    dynamic visual noise;    concurrent visual tapping;   

DOI  :  10.16910/jemr.7.2.2

来源: DOAJ

【 摘 要 】

Microsaccade rates and directions were monitored while observers performed a visual working memory task at varying retinal eccentricities. We show that microsaccades generate no interference in a working memory task, indicating that spatial working memory is at least partially insulated from oculomotor activity. Intervening tasks during the memory interval affected microsaccade patterns; microsaccade frequency was consistently higher during concurrent spatial tapping (no visual component) than during exposure to dynamic visual noise (no task). Average microsaccade rate peaked after appearance of a fixation cross at the start of a trial, and dipped at cue onset and offset, consistent with previous results. Direction of stimuli in choice tasks did not influence microsaccade direction,however.

【 授权许可】

Unknown