Temporally selective attention modulates early perceptual processing: event-related potential evidence.

@article{citeulike:2953101, abstract = {Some of the most important information we encounter changes so rapidly that our perceptual systems cannot process all of it in detail. Spatially selective attention is critical for perception when more information than can be processed in detail is presented simultaneously at distinct locations. When presented with complex, rapidly changing information, listeners may need to selectively attend to specific times rather than to locations. We present evidence that listeners can direct selective attention to time points that differ by as little as 500 msec, and that doing so improves target detection, affects baseline neural activity preceding stimulus presentation, and modulates auditory evoked potentials at a perceptually early stage. These data demonstrate that attentional modulation of early perceptual processing is temporally precise and that listeners can flexibly allocate temporally selective attention over short intervals, making it a viable mechanism for preferentially processing the most relevant segments in rapidly changing streams.}, address = {Department of Psychology, University of Massachusetts, Amherst, Massachusetts 01003, USA. lsanders@psych.umass.edu}, author = {Sanders, L. D. and Astheimer, L. B. }, citeulike-article-id = {2953101}, issn = {0031-5117}, journal = {Perception \& psychophysics}, keywords = {kristina, selective-attention, temporal}, month = {May}, number = {4}, pages = {732--742}, posted-at = {2008-07-02 19:51:42}, priority = {5}, title = {Temporally selective attention modulates early perceptual processing: event-related potential evidence.}, url = {http://view.ncbi.nlm.nih.gov/pubmed/18556935}, volume = {70}, year = {2008} }

TY - JOUR ID - citeulike:2953101 L3 - citeulike-article-id:2953101 TI - Temporally selective attention modulates early perceptual processing: event-related potential evidence. JF - Perception & psychophysics VL - 70 IS - 4 SP - 732 EP - 742 AD - Department of Psychology, University of Massachusetts, Amherst, Massachusetts 01003, USA. lsanders@psych.umass.edu SN - 0031-5117 N2 - Some of the most important information we encounter changes so rapidly that our perceptual systems cannot process all of it in detail. Spatially selective attention is critical for perception when more information than can be processed in detail is presented simultaneously at distinct locations. When presented with complex, rapidly changing information, listeners may need to selectively attend to specific times rather than to locations. We present evidence that listeners can direct selective attention to time points that differ by as little as 500 msec, and that doing so improves target detection, affects baseline neural activity preceding stimulus presentation, and modulates auditory evoked potentials at a perceptually early stage. These data demonstrate that attentional modulation of early perceptual processing is temporally precise and that listeners can flexibly allocate temporally selective attention over short intervals, making it a viable mechanism for preferentially processing the most relevant segments in rapidly changing streams. KW - kristina KW - selective-attention KW - temporal AU - Sanders, LD AU - Astheimer, LB PY - 2008/05// UR - http://view.ncbi.nlm.nih.gov/pubmed/18556935 ER -