Abstract
Visual evoked potentials (VEPs) were recorded during a visual search task to evaluate parallel and serial models of visual processing. A target stimulus elicited a discrete posterior negative wave in the 150-300 ms latency range. Furthermore, there was a close correlation between the search performance and the activity of the negative wave. When the target had a unique feature, neither the search time nor the characteristics of the negative wave was affected by the number of items in display. However, when the target lacked a unique feature, both the search time and the latency of the negative wave increased with the number of items, These results were consistent with a claim that an object with a unique feature is detected preattentively.
| Original language | English |
|---|---|
| Pages (from-to) | 1693-1696 |
| Number of pages | 4 |
| Journal | NeuroReport |
| Volume | 6 |
| Issue number | 12 |
| Publication status | Published - 1995 |
| Externally published | Yes |
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Keywords
- Event related potential
- Pop out
- Visual search
ASJC Scopus subject areas
- Neuroscience(all)
Cite this
Electrophysiological correlates of visual search asymmetry in humans. / Sugita, Y.
In: NeuroReport, Vol. 6, No. 12, 1995, p. 1693-1696.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Electrophysiological correlates of visual search asymmetry in humans
AU - Sugita, Y.
PY - 1995
Y1 - 1995
N2 - Visual evoked potentials (VEPs) were recorded during a visual search task to evaluate parallel and serial models of visual processing. A target stimulus elicited a discrete posterior negative wave in the 150-300 ms latency range. Furthermore, there was a close correlation between the search performance and the activity of the negative wave. When the target had a unique feature, neither the search time nor the characteristics of the negative wave was affected by the number of items in display. However, when the target lacked a unique feature, both the search time and the latency of the negative wave increased with the number of items, These results were consistent with a claim that an object with a unique feature is detected preattentively.
AB - Visual evoked potentials (VEPs) were recorded during a visual search task to evaluate parallel and serial models of visual processing. A target stimulus elicited a discrete posterior negative wave in the 150-300 ms latency range. Furthermore, there was a close correlation between the search performance and the activity of the negative wave. When the target had a unique feature, neither the search time nor the characteristics of the negative wave was affected by the number of items in display. However, when the target lacked a unique feature, both the search time and the latency of the negative wave increased with the number of items, These results were consistent with a claim that an object with a unique feature is detected preattentively.
KW - Event related potential
KW - Pop out
KW - Visual search
UR - http://www.scopus.com/inward/record.url?scp=0029153962&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0029153962&partnerID=8YFLogxK
M3 - Article
C2 - 8527743
AN - SCOPUS:0029153962
VL - 6
SP - 1693
EP - 1696
JO - NeuroReport
JF - NeuroReport
SN - 0959-4965
IS - 12
ER -