Disentangling vision and attention in multiple object tracking: How crowding and collisions affect gaze anchoring and dual-task performance.

Vater, Christian; Kredel, Ralf; Hossner, Ernst-Joachim (2017). Disentangling vision and attention in multiple object tracking: How crowding and collisions affect gaze anchoring and dual-task performance. Journal of vision, 17(5), pp. 1-13. ARVO 10.1167/17.5.21

[img]
Preview
Text
Vater, Kredel, & Hossner (2017)_jov.pdf - Published Version
Available under License Creative Commons: Attribution (CC-BY).

Download (654kB) | Preview

Previous studies of multiple-object tracking have shown that gaze behavior is affected by target collisions and target–distractor crowding. Therefore, in order to experimentally disentangle this collision-crowding confound, we examined events of target collisions with the bordering frame and crowding with distractors. We hypothesized that collisions are particularly demanding for covert attentional processing, whereas crowding particularly challenges peripheral vision. Results show that gaze is located closer to targets when they are crowded, as would be expected to reduce negative crowding effects by utilizing the higher spatial acuity of foveal vision. However, saccades, which interrupt visual information processing, were instead initiated as a function of target collisions with the bordering frame. Consequently, in a dual-task condition that required the detection of target changes, participants more frequently missed changes if they occurred in time intervals around a collision. Based on these results, superior performance should be expected if foveal gaze is optimally anchored among crowded targets and if potential target changes are monitored with peripheral vision. In addition to the implications for further laboratory research of multiple-object tracking, these findings are relevant to a multitude tasks that require the monitoring of several targets and the simultaneous detection of certain events in the visual periphery, as it is commonly the case, for instance, in sports.

Item Type:

Journal Article (Original Article)

Division/Institute:

07 Faculty of Human Sciences > Institute of Sport Science (ISPW)
07 Faculty of Human Sciences > Institute of Sport Science (ISPW) > Sport Science IV

UniBE Contributor:

Vater, Christian; Kredel, Ralf and Hossner, Ernst-Joachim

Subjects:

700 Arts > 790 Sports, games & entertainment

ISSN:

1534-7362

Publisher:

ARVO

Language:

English

Submitter:

Christian Vater

Date Deposited:

08 Aug 2017 14:33

Last Modified:

09 Aug 2017 07:40

Publisher DOI:

10.1167/17.5.21

BORIS DOI:

10.7892/boris.102084

URI:

https://boris.unibe.ch/id/eprint/102084

Actions (login required)

Edit item Edit item
Provide Feedback