Search, similarity, and integration of features between and within dimensions.

Abstract

Three experiments test the claim that conjunction search is difficult only because the target resembles each distractor, whereas the distractors are highly discriminable from each other. The results show that when similarity is controlled, there is an additional difficulty created by the need to conjoin features. In addition, a target with standard values (blue and vertical) is found more easily than targets with nonstandard values (e.g., violet and tilted). Similarity may result in shared components in the functional codes that represent the targets and the distractors. A hypothesis that is based on coarse coding of features values relates the difficulty of feature search with nonstandard targets to problems in coding conjunctions of features within dimensions. Consistent with this account, illusory targets are reported not only in the usual conjunction displays but also in displays containing different features that may share the same underlying components.

Cites (2)

1. Controlled and automatic human information processing: II. Perceptual learning, automatic attending, and a general theory
   Shiffrin, Richard M., Schneider, Walter · 1977 · Psychological Review
2. Guided search: An alternative to the feature integration model for visual search.
   Jeremy M. Wolfe, Kyle R. Cave, Susan L. Franzel · 1989 · Journal of Experimental Psychology Human Perception & Performance

Show all 2 references

Cited by (11)

1. Neuronal Synchrony: A Versatile Code for the Definition of Relations?
   Singer, Wolf · 1999 · Neuron
2. Spatial filtering during visual search: Evidence from human electrophysiology.
   Luck, Steven J., Hillyard, Steven A. · 1994 · Journal of Experimental Psychology: Human Perception and Performance
3. Synchrony Unbound
   Shadlen, Michael N., Movshon, J.Anthony · 1999 · Neuron
4. Basal cortisol levels and cognitive deficits in human aging
   Lupien, S, Lecours, AR, Lussier, I, Schwartz, G, Nair, NP, Meaney, MJ · 1994 · The Journal of Neuroscience
5. The Temporal Correlation Hypothesis of Visual Feature Integration
   Gray, Charles M. · 1999 · Neuron

See all 327