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Abstract

To investigate whether the mechanisms underlying endogenous tactile spatial attention differ under pure tactile compared to mixed modality conditions event-related brain potentials (ERPs) were recorded to bilateral tactile and visual cues and tactile imperative stimuli. In the cue-stimulus interval the anterior directing attention negativity (ADAN) was present contralateral to the side of the attentional shift. Importantly, under pure tactile conditions this component persisted until imperative stimulus onset, while it diminished under intermodal conditions. Furthermore, post-tactile stimulus onset attentional modulations were present for the P100 component and later latencies under intermodal conditions. In contrast, under pure tactile conditions attentional modulations only emerged for the N140 component and later latencies. It is suggested that mechanisms underlying attentional orienting and selection are not entirely supramodal but depend in part on the modalities involved.

Publication Type:	Article
Additional Information:	NOTICE: this is the author’s version of a work that was accepted for publication in Biological Psychology. Changes resulting from the publishing process, such as editing, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in BIOLOGICAL PSYCHOLOGY, VOL 82, ISSUE 3, December 2009 DOI 10.1016/j.biopsycho.2009.08.001
Publisher Keywords:	Social Sciences, Science & Technology, Life Sciences & Biomedicine, Psychology, Biological, Behavioral Sciences, Psychology, Psychology, Experimental, BEHAVIORAL SCIENCES, PSYCHOLOGY, PSYCHOLOGY, BIOLOGICAL, PSYCHOLOGY, EXPERIMENTAL, Attention, Tactile, Somatosensory, ERP, Visual engagement, EVENT-RELATED POTENTIALS, SELECTIVE ATTENTION, SENSORY MODULATIONS, CROSSMODAL LINKS, COMPONENTS, SHIFTS, TOUCH, INFORMATION, SPACE, CUES
Subjects:	B Philosophy. Psychology. Religion > BF Psychology
Departments:	School of Health & Psychological Sciences > Psychology
SWORD Depositor:	Symplectic Administrator

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