Functional visual field in a rapid serial visual presentation task

Abstract

Dynamic temporal change in the size of functional visual field was measured using a dual task: a peripheral task in which one square in a background pattern of squares was changed in shape to a dot; and a central task involving the rapid serial visual presentation of a sequence of letters (RSVP task). The temporal lag between the occurrences of the dot and the RSVP target was manipulated. University students were asked to detect the dot and to depress a mouse button as quickly as possible while searching for the RSVP target among a sequence of distracter letters. The abrupt change in the shape of a background square in the peripheral task caused a processing deficit in the RSVP task at relative lags from -3 to -1 (255 ms to 85 ms before presentation of the RSVP target), but the encoding and retaining processes involved in identifying the RSVP target did not impair the detection of the peripheral dot. The functional visual field was found to expand while participants were performing the dual task, suggesting that preattentive detection is affected by general attentional activity.

Attentional load inhibits vection

“…The RSVP task is commonly used as a way of reducing the attentional resources available for other cognitive functions. Kikuchi, Sekine, and Nakamura (2001) reported that in a dual-task condition involving shape change detection and RSVP simultaneously, RSVP captured attentional resources and, consequently, decreased change detection performance. Joseph, Chun, and Nakayama (1997) also reported that in dual-task conditions in which an RSVP task and an orientation discrimination task were performed simultaneously, the RSVP task captured attentional resources and impaired orientation discrimination performance.…”

55‐1: Invited Paper: Superiority of Monocular Augmented Reality when Continuous Viewing is Required

“…The rapid serial visual presentation (RSVP) task was chosen in the present study [16,17,18] because the RSVP task is suitable for conducting an experiment that requires continuous viewing of AR images. In the typical RSVP task, stimuli are presented sequentially and very rapidly.…”

Monocular hyper‐realistic AR head‐up display

“…The UFOV is the area around the fixation point from which we can acquire information briefly during a visual task . The size of UFOV can vary under different conditions, such as task difficulty and attentional demand . It is possible that using an in‐vehicle information display while driving causes narrowing of the UFOV by increasing an attentional demand.…”

“…12 The size of UFOV can vary under different conditions, such as task difficulty and attentional demand. 13,14 It is possible that using an in-vehicle information display while driving causes narrowing of the UFOV by increasing an attentional demand. However, we expect that UFOV is not narrowed by using monocular AR image presentation because the attentional demand relates to the shift of attention in depth so attentional demand is mitigated by the monocular observation.…”