Inhibition of return spreads across 3-D space |
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Authors: | Email author" target="_blank">Jan?TheeuwesEmail author Jay?Pratt |
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Institution: | (1) Leibniz Research Centre for Working Environment and Human Factors, Ardeystrasse 67, 44139 Dortmund, Germany; |
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Abstract: | Focusing attention to a location in 3–D space operates much the same as in 2–D space. Attending a location in 2–D space is
followed by a selective inhibitory aftereffect known as inhibition of return (IOR). Here, we report the results of two 3–D
reflexive cuing studies in which depth was defined by binocular disparity. As has been shown before, attentional cuing was
specific for x–y–z locations. However, the present results show that IOR is not depth specific. After a specific location
in x–y–z is cued, IOR occurs for the depth plane in front of and behind the cued location. The finding that IOR spreads across
depth planes may be related to how inhibited locations are encoded in the superior colliculus. We argue that the functional
role of a depth–blind IOR is to bias attention against going back to any part of a previously attended object. |
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Keywords: | |
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