Detail Hemispheric asymmetry in the processing of absoluteversus relative spatial frequency   Oleh:  Christman, Stephen D. ; Kitterle, Frederick L. ; Hellige, Joseph Jenis: Article from Bulletin/Magazine Dalam koleksi: Brain and Cognition vol. 16 no. 1 (May 1991), page 62-73. Ketersediaan Perpustakaan PKBB Nomor Panggil: 405/BAC/16 Non-tandon: tidak ada Tandon: 1  Lihat Detail Induk Isi artikel Observers indicated whether a stimulus presented to one visual field or the other consisted of two sine-wave gratings (the baseline stimulus) or those same two gratings with the addition of a 2 cycle per degree (cpd) component. When the absolute spatial frequencies of the baseline stimulus were low (0.5 and 1.0 cpd), there was a left visual field-right hemisphere (L YF-RH) advantage in reaction time (RT) to respond to the baseline stimulus which disappeared when the 2 cpd component was added (i.e., the stimulus consisted of 0.5, 1.0, and 2.0 cpd components). When the absolute spatial frequencies of the baseline stimulus were moderate to high (4.0 and 8.0 cpd), a right visual field-left hemisphere advantage in RT to respond to the baseline stimulus approached significance and shifted to a significant L YF-RH advantage when the 2 cpd component was added (i.e., the stimulus consisted of 2.0, 4.0, and 8.0 cpd components. That is, adding the same 2 cpd component caused opposite shifts in visual laterality depending on whether 2 cpd was a relatively high or relatively low frequency compared to the baseline. @ 1991 Academic Press. Inc. Opini Anda Klik untuk menuliskan opini Anda tentang koleksi ini! Kembali

Copyright © 2006, 2007 Unika Atma Jaya, all rights reserved