Large and rapid improvement in form discrimination accuracy following a location precue.

Processing of a visual stimulus can be improved by precuing its location. Most previous precue studies have used reaction time as the dependent measure and have found large effects; but when form discrimination accuracy has been used, precue effects have been relatively small. The present experiments yielded large, short-latency precue effects on form discrimination accuracy. A small square precue was briefly presented near one of four possible target locations. Then one of four possible targets (T-like figures) was presented in each location, followed by a mask. Observers attempted to identify the target that had been presented in the cued location. In experiment 1, target duration, cue-to-target distance, and cue-target onset asynchrony (SOA) were varied. Target discriminability (d') increased markedly with increasing precue-target SOA, even at very short SOAs. Thus, there was no evidence for a delay in the onset of precue effects (caused, for example, by the need to shift attention across the visual field). Performance was best for precues that were closest to the target, thus ruling out a forward masking explanation of the effect. Finally SOA and target duration interacted strongly - longer precue SOAs resulted in larger effects of target duration. In experiment 2, this interaction was replicated using an additional target duration and longer SOAs. One interpretation of this result is that focal attention increases the rate at which information can be extracted from a visual location.

[1]  A. V. D. Heijden,et al.  Single-letter recognition accuracy benefits from advance cuing of location , 1987, Perception & psychophysics.

[2]  J. Jonides Voluntary versus automatic control over the mind's eye's movement , 1981 .

[3]  C. Eriksen,et al.  Allocation of attention in the visual field. , 1985, Journal of experimental psychology. Human perception and performance.

[4]  P. B. Elliott,et al.  Tables of d , 1959 .

[5]  Valerie Townsend,et al.  Voluntary Attention in Peripheral Vision and its Effects on Acuity and Differential Thresholds , 1968, The Quarterly journal of experimental psychology.

[6]  C. Eriksen,et al.  Temporal course of selective attention. , 1969, Journal of experimental psychology.

[7]  Charles W. Eriksen,et al.  Selective attention and serial processing in briefly presented visual displays , 1971 .

[8]  George Sperling,et al.  The information available in brief visual presentations. , 1960 .

[9]  C. Eriksen,et al.  Temporal changes in the distribution of attention in the visual field in response to precues , 1987, Perception & psychophysics.

[10]  A. H. C. Heijden,et al.  The effects of advance location cueing on latencies in a single-letter recognition task , 1988, Psychological research.

[11]  G. Shulman,et al.  Moving attention through visual space. , 1979, Journal of experimental psychology. Human perception and performance.

[12]  J. Jonides Towards a model of the mind's eye's movement. , 1980, Canadian journal of psychology.

[13]  C. Eriksen,et al.  Selective encoding from multielement visual displays , 1973 .

[14]  M. Posner,et al.  Orienting of Attention* , 1980, The Quarterly journal of experimental psychology.

[15]  R. Remington,et al.  Moving attention: Evidence for time-invariant shifts of visual selective attention , 1984, Perception & psychophysics.

[16]  A H van der Heijden,et al.  Enhancing Single-Item Recognition Accuracy by Cueing Spatial Locations in Vision , 1985, The Quarterly journal of experimental psychology. A, Human experimental psychology.

[17]  C. J. Downing Expectancy and visual-spatial attention: effects on perceptual quality. , 1988, Journal of experimental psychology. Human perception and performance.

[18]  J. Findlay,et al.  Sensitivity and criterion effects in the spatial cuing of visual attention , 1987, Perception & psychophysics.

[19]  S. Yantis,et al.  Uniqueness of abrupt visual onset in capturing attention , 1988, Perception & psychophysics.

[20]  M. Posner,et al.  Components of visual orienting , 1984 .

[21]  C. Eriksen,et al.  Movement of attentional focus across the visual field: A critical look at the evidence , 1987, Perception & psychophysics.

[22]  C. Eriksen,et al.  Some factors determining efficiency of selective attention. , 1970 .

[23]  D. Homa,et al.  Sensitization of the visual field. , 1984, Journal of experimental psychology. Human perception and performance.

[24]  C. Possamaï,et al.  Relationship between inhibition and facilitation following a visual cue. , 1986 .

[25]  G. Sperling,et al.  Attention gating in short-term visual memory. , 1986, Psychological review.

[26]  Y. Tsal Movements of attention across the visual field. , 1983, Journal of experimental psychology. Human perception and performance.