Cognitive strategies for visual search
| Autor: | Robert Karsh, Ramakrishna Pillalamarri, Leonard F.M. Scinto |
|---|---|
| Rok vydání: | 1986 |
| Předmět: |
Visual search
Adult Male Injury control Adolescent Eye Movements Eye movement Poison control Experimental and Cognitive Psychology Cognition General Medicine Random walk Task (project management) Form Perception Arts and Humanities (miscellaneous) Duration (music) Developmental and Educational Psychology Psychophysics Humans Psychology Cognitive psychology |
| Zdroj: | Acta psychologica. 62(3) |
| ISSN: | 0001-6918 |
| Popis: | In visual search where the subject's task is to locate and report the position of non-preattentively discriminable targets, subjects' performance was found to be best described by a modified random walk simulation. Manipulation of global field boundaries had little effect on performance in this search task. As search continued to be unsuccessful subjects did adjust both the length of saccades between fixations and the duration of fixations where saccades became shorter and durations longer. These results indicate that in search of visually homogenous fields for non-preattentively discriminable targets, voluntary ocular behavior, as measured by eye movement recordings, is more nearly random than directed by a systematic strategy. |
| Databáze: | OpenAIRE |
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