Depth discrimination of constant angular size stimuli in action space: role of accommodation and convergence cues

Naceri A, Moscatelli A, Chellali R (2015)
Frontiers in Human Neuroscience 9: 511.

Download
OA
Zeitschriftenaufsatz | Veröffentlicht | Englisch
Volltext vorhanden für diesen Nachweis
Alternativer Titel
Depth discrimination in action space
Abstract / Bemerkung
In our daily life experience, the angular size of an object correlates with its distance from the observer, provided that the physical size of the object remains constant. In this work, we investigated depth perception in action space (i.e., beyond the arm reach), while keeping the angular size of the target object constant. This was achieved by increasing the physical size of the target object as its distance to the observer increased. To the best of our knowledge, this is the first time that a similar protocol has been tested in action space, for distances to the observer ranging from 1.4–2.4 m. We replicated the task in virtual and real environments and we found that the performance was significantly different between the two environments. In the real environment, all participants perceived the depth of the target object precisely. Whereas, in virtual reality (VR) the responses were significantly less precise, although, still above chance level in 16 of the 20 observers. The difference in the discriminability of the stimuli was likely due to different contributions of the convergence and the accommodation cues in the two environments. The values of Weber fractions estimated in our study were compared to those reported in previous studies in peripersonal and action space.
Erscheinungsjahr
Zeitschriftentitel
Frontiers in Human Neuroscience
Band
9
Artikelnummer
511
ISSN
Finanzierungs-Informationen
Article Processing Charge funded by the Deutsche Forschungsgemeinschaft and the Open Access Publication Fund of Bielefeld University.
PUB-ID

Zitieren

Naceri A, Moscatelli A, Chellali R. Depth discrimination of constant angular size stimuli in action space: role of accommodation and convergence cues. Frontiers in Human Neuroscience. 2015;9: 511.
Naceri, A., Moscatelli, A., & Chellali, R. (2015). Depth discrimination of constant angular size stimuli in action space: role of accommodation and convergence cues. Frontiers in Human Neuroscience, 9, 511. doi:10.3389/fnhum.2015.00511
Naceri, A., Moscatelli, A., and Chellali, R. (2015). Depth discrimination of constant angular size stimuli in action space: role of accommodation and convergence cues. Frontiers in Human Neuroscience 9:511.
Naceri, A., Moscatelli, A., & Chellali, R., 2015. Depth discrimination of constant angular size stimuli in action space: role of accommodation and convergence cues. Frontiers in Human Neuroscience, 9: 511.
A. Naceri, A. Moscatelli, and R. Chellali, “Depth discrimination of constant angular size stimuli in action space: role of accommodation and convergence cues”, Frontiers in Human Neuroscience, vol. 9, 2015, : 511.
Naceri, A., Moscatelli, A., Chellali, R.: Depth discrimination of constant angular size stimuli in action space: role of accommodation and convergence cues. Frontiers in Human Neuroscience. 9, : 511 (2015).
Naceri, Abdeldjallil, Moscatelli, Alessandro, and Chellali, Ryad. “Depth discrimination of constant angular size stimuli in action space: role of accommodation and convergence cues”. Frontiers in Human Neuroscience 9 (2015): 511.
Alle Dateien verfügbar unter der/den folgenden Lizenz(en):
Copyright Statement:
This Item is protected by copyright and/or related rights. [...]
Volltext(e)
Access Level
OA Open Access
Zuletzt Hochgeladen
2016-05-31T12:10:23Z

Export

Markieren/ Markierung löschen
Markierte Publikationen

Open Data PUB

Web of Science

Dieser Datensatz im Web of Science®

Quellen

PMID: 26441608
PubMed | Europe PMC

Suchen in

Google Scholar