Results: 2

1.
Figure 2

Figure 2. From: Age-related increase in top-down activation of visual features.

Reaction time as a function of task condition, display size, and age group. Error bars represent 1 SE.

David J. Madden, et al. Q J Exp Psychol (Hove). ;60(5):644-651.
2.
Figure 1

Figure 1. From: Age-related increase in top-down activation of visual features.

A guided search characterization of visual feature processing. Information from separate feature modules is summated into a central activation map. When the observer has no basis for expecting a particular feature, as in Panel A, the outputs are weighted equally, and processing is entirely bottom-up. When the observer has a top-down expectation for a particular dimension (e.g., colour), the output of that module is weighted more heavily, as in Panel B, and the detectability of that feature in the activation map is enhanced. This figure is modified, with permission, from Figure 16 in “Changing your mind: On the contributions of top-down and bottom-up guidance in visual search for feature singletons”, by J. M. Wolfe, S. J. Butcher, C. Lee, and M. Hyle, 2003, Journal of Experimental Psychology: Human Perception and Performance, 29, p. 498. Copyright 2003 by the American Psychological Association.

David J. Madden, et al. Q J Exp Psychol (Hove). ;60(5):644-651.

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