What can 1 million trials tell us about visual search?
Article Abstract:
The mechanisms of visual search have been investigated in experiments involving five to 15 subjects performing a few hundred trials each. Typical visual search experiments involve the measurement of the reaction times of subjects viewing a set of items for a designated target that may or may not be present. An overall picture of human search behavior is drawn from an analysis of data from 2,500 sessions resulting in a total of about one million search trials. The result indicates that changes in visual search theories are required.
Publication Name: Psychological Science
Subject: Psychology and mental health
ISSN: 0956-7976
Year: 1998
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The lower visual search efficiency for conjunctions is due to noise and not serial attentional processing
Article Abstract:
Research was conducted to examine whether a noise-based model (SDT), a hybrid model (noisy and serial processing) or a temporally serial model can better predict the larger set-size effects for conjunction versus feature displays. An experimental paradigm that carefully monitors for low-level effects was used. Results indicate that temporal serial allocations of visual attention is a method that binds information across multiple feature dimensions.
Publication Name: Psychological Science
Subject: Psychology and mental health
ISSN: 0956-7976
Year: 1998
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On the role of symmetry in visual search
Article Abstract:
A study to determine whether symmetry of background played a role on visual search was conducted. To this end, two experiments were made. There were 10 subjects for the whole study. The results indicated that symmetry of background and target did interfere with visual search since background acted as camouflage. This would indicate that symmetry does play a role in visual search. Implications ofthe study are presented.
Publication Name: Psychological Science
Subject: Psychology and mental health
ISSN: 0956-7976
Year: 1992
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