PMID: 11334699May 4, 2001Paper

Attentional selection in the processing of hierarchical patterns: an ERP study

Biological Psychology
S HanD L Woods

Abstract

The current study aimed to investigate the effect of attentional selection of distinctive local elements on the processing of hierarchically organized patterns. Event-related brain potentials (ERPs) were recorded from subjects during identifications of global or local shapes of hierarchical patterns where either all local elements were identical (homogeneous stimulus) or a local element closest to fixation was distinguished by color from others (pop-out stimulus). One group of subjects was presented with the homogeneous stimuli and required to identify global or local shapes in separate blocks of trials. The other group was presented with the pop-out stimuli and asked to attend to the unique local item in the local task. A global precedence effect was observed in behavioral data. ERPs showed enlarged posterior P1 and N2 amplitudes in the local relative to global conditions. Top-down attention to the pop-out item resulted in increased frontal/central N2 amplitudes in the local condition but eliminated the temporal/occipital N2 enhancement in the local relative to global conditions. Top-down attention to the pop-out item also increased local-to-global interference in reaction times and frontal N2 latencies. The results suggest th...Continue Reading

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Citations

Apr 23, 2010·Neuropsychology Review·Tilman Schulte, Eva M Müller-Oehring
Sep 23, 2003·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Shihui HanDavid L Woods
Jun 29, 2005·Journal of Experimental Psychology. Human Perception and Performance·Ronald Hübner, Gregor Volberg
May 16, 2002·Clinical & Experimental Ophthalmology·Murray L LawsonDavid P Crewther
Jan 22, 2005·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Murray L LawsonPatricia M Kiely
Aug 3, 2010·Attention, Perception & Psychophysics·Mathieu B BrodeurJ Bruno Debruille
Jan 10, 2003·Perception & Psychophysics·Ronald Hübner, Peter Malinowski
Jan 19, 2016·Biological Psychology·Jennifer MoynihanJan de Fockert
Jun 28, 2005·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Yi Jiang, Shihui Han
Mar 30, 2006·Journal of Experimental Psychology. Learning, Memory, and Cognition·Anja SoldanLynn A Cooper
Nov 30, 2010·Neuropsychologia·Thomas M Van VleetLynn C Robertson
Jun 24, 2008·The International Journal of Neuroscience·Tomohiro IshizuShozo Kojima
Oct 5, 2001·Nature Reviews. Neuroscience·A K EngelW Singer
Mar 21, 2020·Experimental Brain Research·Ming PengQingbai Zhao

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