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Distinct task-independent visual thresholds for egocentric and allocentric information pick up.
Conscious Cogn. 2012 Sep; 21(3):1410-8.CC

Abstract

The dominant view of the ventral and dorsal visual systems is that they subserve perception and action. De Wit, Van der Kamp, and Masters (2011) suggested that a more fundamental distinction might exist between the nature of information exploited by the systems. The present study distinguished between these accounts by asking participants to perform delayed matching (perception), pointing (action) and perceptual judgment responses to masked Müller-Lyer stimuli of varying length. Matching and pointing responses of participants who could not perceptually judge stimulus length at brief durations remained sensitive to veridical stimulus length (egocentric information), but not the illusion (allocentric, context-dependent information), which was effective at long durations. Distinct thresholds for egocentric and allocentric information pick up were thus evident irrespective of whether perception (matching) or action (pointing) responses were required. It was concluded that the dorsal and ventral systems may be delineated fundamentally by fast egocentric- and slower allocentric information pick up, respectively.

Authors+Show Affiliations

Institute of Human Performance, University of Hong Kong, Pokfulam, Hong Kong. dewitm@hku.hkNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

22868214

Citation

De Wit, Matthieu M., et al. "Distinct Task-independent Visual Thresholds for Egocentric and Allocentric Information Pick Up." Consciousness and Cognition, vol. 21, no. 3, 2012, pp. 1410-8.
De Wit MM, Van der Kamp J, Masters RS. Distinct task-independent visual thresholds for egocentric and allocentric information pick up. Conscious Cogn. 2012;21(3):1410-8.
De Wit, M. M., Van der Kamp, J., & Masters, R. S. (2012). Distinct task-independent visual thresholds for egocentric and allocentric information pick up. Consciousness and Cognition, 21(3), 1410-8. https://doi.org/10.1016/j.concog.2012.07.008
De Wit MM, Van der Kamp J, Masters RS. Distinct Task-independent Visual Thresholds for Egocentric and Allocentric Information Pick Up. Conscious Cogn. 2012;21(3):1410-8. PubMed PMID: 22868214.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Distinct task-independent visual thresholds for egocentric and allocentric information pick up. AU - De Wit,Matthieu M, AU - Van der Kamp,John, AU - Masters,Rich S W, Y1 - 2012/08/04/ PY - 2012/04/06/received PY - 2012/07/06/revised PY - 2012/07/12/accepted PY - 2012/8/8/entrez PY - 2012/8/8/pubmed PY - 2013/1/19/medline SP - 1410 EP - 8 JF - Consciousness and cognition JO - Conscious Cogn VL - 21 IS - 3 N2 - The dominant view of the ventral and dorsal visual systems is that they subserve perception and action. De Wit, Van der Kamp, and Masters (2011) suggested that a more fundamental distinction might exist between the nature of information exploited by the systems. The present study distinguished between these accounts by asking participants to perform delayed matching (perception), pointing (action) and perceptual judgment responses to masked Müller-Lyer stimuli of varying length. Matching and pointing responses of participants who could not perceptually judge stimulus length at brief durations remained sensitive to veridical stimulus length (egocentric information), but not the illusion (allocentric, context-dependent information), which was effective at long durations. Distinct thresholds for egocentric and allocentric information pick up were thus evident irrespective of whether perception (matching) or action (pointing) responses were required. It was concluded that the dorsal and ventral systems may be delineated fundamentally by fast egocentric- and slower allocentric information pick up, respectively. SN - 1090-2376 UR - https://www.unboundmedicine.com/medline/citation/22868214/Distinct_task_independent_visual_thresholds_for_egocentric_and_allocentric_information_pick_up_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1053-8100(12)00166-3 DB - PRIME DP - Unbound Medicine ER -