scholarly journals Activity in monkey V4 reflects target identification and saccade direction in free viewing visual search

2010 ◽  
Vol 7 (9) ◽  
pp. 179-179
Author(s):  
A. Gee ◽  
A. Ipata ◽  
M. Goldberg
Keyword(s):  
Visual Search ◽  
Target Identification ◽  
Free Viewing ◽  
Saccade Direction

scholarly journals The Influence of the Saccade Direction on the Direction of the Consecutive Saccade during Free Viewing

i-Perception ◽  
10.1068/ic333 ◽  
2011 ◽  
Vol 2 (4) ◽  
pp. 333-333
Author(s):  
Yusuke Taniuchi ◽  
Masahiro Ishii
Keyword(s):  
Free Viewing ◽  
Saccade Direction

scholarly journals Extrafoveal preview benefit during free-viewing visual search in the monkey

2014 ◽  
Vol 14 (1) ◽  
pp. 6-6 ◽  
Author(s):  
B. S. Krishna ◽  
A. E. Ipata ◽  
J. W. Bisley ◽  
J. Gottlieb ◽  
M. E. Goldberg
Keyword(s):  
Visual Search ◽  
Preview Benefit ◽  
Free Viewing

Grapheme–Color Synesthesia Influences Overt Visual Attention

2009 ◽  
Vol 21 (2) ◽  
pp. 246-258 ◽  
Author(s):  
Jonathan S. A. Carriere ◽  
Daniel Eaton ◽  
Michael G. Reynolds ◽  
Mike J. Dixon ◽  
Daniel Smilek
Keyword(s):  
Visual Search ◽  
Eye Movements ◽  
Visual Attention ◽  
Eye Tracking ◽  
Search Task ◽  
Visual Search Task ◽  
Free Viewing ◽  
Colored Target

For individuals with grapheme–color synesthesia, achromatic letters and digits elicit vivid perceptual experiences of color. We report two experiments that evaluate whether synesthesia influences overt visual attention. In these experiments, two grapheme–color synesthetes viewed colored letters while their eye movements were monitored. Letters were presented in colors that were either congruent or incongruent with the synesthetes' colors. Eye tracking analysis showed that synesthetes exhibited a color congruity bias—a propensity to fixate congruently colored letters more often and for longer durations than incongruently colored letters—in a naturalistic free-viewing task. In a more structured visual search task, this congruity bias caused synesthetes to rapidly fixate and identify congruently colored target letters, but led to problems in identifying incongruently colored target letters. The results are discussed in terms of their implications for perception in synesthesia.

scholarly journals Where did I come from? Where am I going? Functional influences on visual search fixation duration

2017 ◽  
Vol 10 (1) ◽  
Author(s):  
Harold H. Greene ◽  
James M. Brown
Keyword(s):  
Visual Search ◽  
Real Time ◽  
Fixation Duration ◽  
Search Behavior ◽  
Real Time Simulation ◽  
Fixation Durations ◽  
Total Fixation ◽  
Time Simulation ◽  
Saccade Direction

Real time simulation of visual search behavior can occur only if the control of fixation durations is sufficiently understood.  Visual search studies have typically confounded pre- and post-saccadic influences on fixation duration.  In the present study, pre- and post-saccadic influences on fixation durations were compared by considering saccade direction. Novel use of a gaze-contingent moving obstructer paradigm also addressed relative contributions of both influences to total fixation duration.   As a function of saccade direction, pre-saccadic fixation durations exhibited a different pattern from post-saccadic fixation durations.  Post-saccadic fixations were also more strongly influenced by peripheral obstruction than pre-saccadic fixation durations. This suggests that post-saccadic influences may contribute more to fixation durations than pre-saccadic influences. Together, the results demonstrate that it is insufficient to model the control of visual search fixation durations without consideration of pre- and post-saccadic influences. 

scholarly journals Neurons in FEF Keep Track of Items That Have Been Previously Fixated in Free Viewing Visual Search

2019 ◽  
Vol 39 (11) ◽  
pp. 2114-2124 ◽  
Author(s):  
Koorosh Mirpour ◽  
Zeinab Bolandnazar ◽  
James W. Bisley
Keyword(s):  
Visual Search ◽  
Free Viewing

Item-based selection is in good shape in visual compound search: A view from electrophysiology

2017 ◽  
Vol 40 ◽  
Author(s):  
Thomas Töllner ◽  
Dragan Rangelov
Keyword(s):  
Visual Search ◽  
Target Identification ◽  
Search Behaviour ◽  
Single Item ◽  
Good Shape ◽  
Unit Of Selection

AbstractWe argue that although the framework put forward by Hulleman & Olivers (H&O) can successfully explain much of visual search behaviour, it appears limited to tasks without precise target identification demands. In particular, we contend that the unit of selection may be larger than a single item in standard detection tasks, whereas the unit may mandatorily be item-based in compound tasks.

Sign in / Sign up

Export Citation Format

Share Document