Temporal asynchrony interferes with vernier acuity

Wehrhahn, C; Westheimer, G

doi:10.1017/S0952523800003187

アイテム詳細

登録内容を編集ファイル形式で保存

一時保存へ追加

タグ情報を表示リリース履歴を表示詳細要約

公開

学術論文

Temporal asynchrony interferes with vernier acuity

MPS-Authors

There are no MPG-Authors in the publication available

External Resource

https://www.cambridge.org/core/journals/visual-neuroscience/article/temporal-asynchrony-interferes-with-vernier-acuity/7D9706F5E8FAEFC9DCDD570D0C59501E
(出版社版)

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

フルテキスト (公開)

公開されているフルテキストはありません

付随資料 (公開)

There is no public supplementary material available

引用

Wehrhahn, C., & Westheimer, G. (1993). Temporal asynchrony interferes with vernier acuity. Visual Neuroscience, 10(1), 13-19. doi:10.1017/S0952523800003187.

引用: https://hdl.handle.net/11858/00-001M-0000-0013-EDAA-3

要旨

Two dots may be aligned vertically with a precision much higher than that expected from two-point resolution provided they are separated by a visual angle of 3–5 min of arc. This precision suffers when the two dots are not exposed synchronously. Neither onset nor offset asynchronies can be tolerated; exposure differences of the two components of the vernier task as low as 30 ms can lead to a reduction in performance when the total exposure is below 90 ms. This effect cannot be compensated for by synchronizing the onset of one stimulus component with the offset of the other, even when the two are of opposite contrast. The data suggest that vernier acuity may be subserved by a dynamical linking of cortical excitation generated by the synchronous arrival of signals within a range of locations in the cortex whose spatial separation is critical for optimal hyperacuity performance. The evidence presented in this paper must be taken into account when a physiological substrate for hyperacuity is considered.