Spatial cueing in time-space synesthetes: An event-related brain potential study

Brain and Cognition
Ursina TeuscherSeana Coulson

Abstract

Some people report that they consistently and involuntarily associate time events, such as months of the year, with specific spatial locations; a condition referred to as time-space synesthesia. The present study investigated the manner in which such synesthetic time-space associations affect visuo-spatial attention via an endogenous cuing paradigm. Reaction times and ERPs were recorded as 12 time-space synesthetes and 12 control participants did a peripheral target detection task, cued by three different types of centrally presented cues: arrows pointing left or right, direction words "left" or "right", and month names associated with either the left or the right side of the synesthete's mental calendar (e.g., "October" or "May"). Cues were followed by probes on the left or right side of the screen, and participants responded to the probes with button presses. Behavioral and ERP data suggested that for synesthetes, month words functioned more effectively as cues to direct attention in space. In synesthetes but not controls, a comparison of ERPs to probes cued by months revealed effects of cue validity on the P3b component peaking 370 ms post-onset and on the subsequent positive slow wave (pSW) observed 600-900 ms post-onset (b...Continue Reading

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Citations

Jul 19, 2012·Cognitive Processing·O LinkovskiA Henik
Apr 5, 2013·Cognitive Processing·David BrangSeana Coulson
Sep 20, 2011·Journal of Neuropsychology·Clare N JonasJamie Ward
Jul 16, 2014·Consciousness and Cognition·Lilach Akiva-KabiriAvishai Henik
Dec 15, 2012·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Mark C Price, Jason B Mattingley
Apr 16, 2015·Frontiers in Human Neuroscience·Jean-Michel Hupé, Michel Dojat
Dec 7, 2017·Frontiers in Neuroscience·Encarni Marcos, Aldo Genovesio
Jul 22, 2016·Disability and Rehabilitation·Kari-Anne B NæssSolveig-Alma Halaas Lyster

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