How Different Spatial-Frequency Components Contribute to Visual Information Acquisition
| Autor: | Geoffrey R. Loftus, Erin M. Harley |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Visual perception
Experimental psychology media_common.quotation_subject Spatial ability Experimental and Cognitive Psychology Spatial memory Random Allocation Behavioral Neuroscience Arts and Humanities (miscellaneous) Space Perception Perception Visual Perception Spatial ecology Humans Learning Independence (mathematical logic) Spatial frequency Psychology Social psychology Cognitive psychology media_common |
| Zdroj: | Journal of Experimental Psychology: Human Perception and Performance. 30:104-118 |
| ISSN: | 1939-1277 0096-1523 |
| Popis: | We test 3 theories of global and local scene information acquisition, defining global and local in terms of spatial frequencies. By independence theories, high- and low-spatial-frequency information are acquired over the same time course and combine additively. By global-precedence theories, global information acquisition precedes local information acquisition, but they combine additively. By interactive theories, global information also affects local-information acquisition rate. We report 2 digit-recall experiments. In the 1st, we confirmed independence theories. In the 2nd, we disconfirmed both independence theories and interactive theories, leaving global-precedence theories as the remaining alternative. We show that a specific global-precedence theory quantitatively accounted for Experiments 1–2 data as well as for past data. We discuss how their spatial-frequency definition of spatial scale comports with definitions used by others, and we consider the suggestion by P. G. Schyns and colleagues (e.g., D. J. Morrison & Schyns, 2001) that the visual system may act flexibly rather than rigidly in its use of spatial scales. |
| Databáze: | OpenAIRE |
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