Abstract
It has been known remembered locations of visual stimuli are systematically distorted in a two-dimensional (i.e., retinal) coordinate, which includes the foveal bias, memory averaging, and landmark effect. The present study aimed at examining how the remembered depth position of a visual target would be distorted. Also, we examined whether depth distortion would differ for perceptual and motor-related tasks. In the experiments, a visual target was presented for one second at various distances from the observers by using a 3D projector. The fixation distance was also varied. After the disappearance of the target, observers performed either perceptual judgment (the method of constant to estimate the point of psychological subjective equality) or motor response (by using a 3D mouse) for the remembered target distance. The results showed that the remembered depth of the target was compressed toward the averaged depth of the possible depth range for both perceptual and motor responses. In addition, however, the perceptual responses tended to overestimate the depth when the fixation depth was closer than or the same as the nearest possible depth of the target. No bias was observed when the fixation depth was farther than the nearest possible depth. For the motor responses, there was a general underestimation irrespective of fixation depth. These results suggest that spatial memory of depth for visual stimuli may be qualitatively different between perceptual and motor responses.
| Original language | English |
|---|---|
| Title of host publication | 2016 8th International Conference on Knowledge and Smart Technology, KST 2016 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 281-286 |
| Number of pages | 6 |
| ISBN (Electronic) | 9781467381376 |
| DOIs | |
| Publication status | Published - Mar 23 2016 |
| Externally published | Yes |
| Event | 8th International Conference on Knowledge and Smart Technology, KST 2016 - Chiangmai, Thailand Duration: Feb 3 2016 → Feb 6 2016 |
Other
| Other | 8th International Conference on Knowledge and Smart Technology, KST 2016 |
|---|---|
| Country | Thailand |
| City | Chiangmai |
| Period | 2/3/16 → 2/6/16 |
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All Science Journal Classification (ASJC) codes
- Computer Science Applications
- Health Informatics
- Computer Networks and Communications
- Education
- Artificial Intelligence
Cite this
Memory distortion of depth of a visual stimulus for perception and action. / Tanaka, Kanji; Yamamoto, Kentaro; Sung-En, Chien; Watanabe, Katsumi.
2016 8th International Conference on Knowledge and Smart Technology, KST 2016. Institute of Electrical and Electronics Engineers Inc., 2016. p. 281-286 7440511.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Memory distortion of depth of a visual stimulus for perception and action
AU - Tanaka, Kanji
AU - Yamamoto, Kentaro
AU - Sung-En, Chien
AU - Watanabe, Katsumi
PY - 2016/3/23
Y1 - 2016/3/23
N2 - It has been known remembered locations of visual stimuli are systematically distorted in a two-dimensional (i.e., retinal) coordinate, which includes the foveal bias, memory averaging, and landmark effect. The present study aimed at examining how the remembered depth position of a visual target would be distorted. Also, we examined whether depth distortion would differ for perceptual and motor-related tasks. In the experiments, a visual target was presented for one second at various distances from the observers by using a 3D projector. The fixation distance was also varied. After the disappearance of the target, observers performed either perceptual judgment (the method of constant to estimate the point of psychological subjective equality) or motor response (by using a 3D mouse) for the remembered target distance. The results showed that the remembered depth of the target was compressed toward the averaged depth of the possible depth range for both perceptual and motor responses. In addition, however, the perceptual responses tended to overestimate the depth when the fixation depth was closer than or the same as the nearest possible depth of the target. No bias was observed when the fixation depth was farther than the nearest possible depth. For the motor responses, there was a general underestimation irrespective of fixation depth. These results suggest that spatial memory of depth for visual stimuli may be qualitatively different between perceptual and motor responses.
AB - It has been known remembered locations of visual stimuli are systematically distorted in a two-dimensional (i.e., retinal) coordinate, which includes the foveal bias, memory averaging, and landmark effect. The present study aimed at examining how the remembered depth position of a visual target would be distorted. Also, we examined whether depth distortion would differ for perceptual and motor-related tasks. In the experiments, a visual target was presented for one second at various distances from the observers by using a 3D projector. The fixation distance was also varied. After the disappearance of the target, observers performed either perceptual judgment (the method of constant to estimate the point of psychological subjective equality) or motor response (by using a 3D mouse) for the remembered target distance. The results showed that the remembered depth of the target was compressed toward the averaged depth of the possible depth range for both perceptual and motor responses. In addition, however, the perceptual responses tended to overestimate the depth when the fixation depth was closer than or the same as the nearest possible depth of the target. No bias was observed when the fixation depth was farther than the nearest possible depth. For the motor responses, there was a general underestimation irrespective of fixation depth. These results suggest that spatial memory of depth for visual stimuli may be qualitatively different between perceptual and motor responses.
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UR - http://www.scopus.com/inward/citedby.url?scp=84966616946&partnerID=8YFLogxK
U2 - 10.1109/KST.2016.7440511
DO - 10.1109/KST.2016.7440511
M3 - Conference contribution
AN - SCOPUS:84966616946
SP - 281
EP - 286
BT - 2016 8th International Conference on Knowledge and Smart Technology, KST 2016
PB - Institute of Electrical and Electronics Engineers Inc.
ER -