Current models of prospective timing hypothesize that estimated duration is influenced either by the attentional load or by the short-term memory requirements of a concurrent nontemporal task. In the present study, we addressed this issue with four dual-task experiments. In Exp. 1, the effect of memory load on both reaction time and temporal production Was proportional to the number of items of a visuospatial pattern to hold in memory. In Exps. 2, 3, and 4, a temporal production task was combined with two visual search tasks involving either pre-attentive or attentional processing. Visual tasks interfered with temporal production: produced intervals were lengthened proportionally to the display size. In contrast, reaction times increased with display size only when a serial, effortful search was required. It appears that memory and perceptual set size, rather than nonspecific attentional or short-term load, can influence prospective timing.

Temporal Production and Visuo-Spatial Processing / BENUZZI, Francesca; BASSO, GIANPAOLO; NICHELLI, Paolo Frigio. - In: PERCEPTUAL AND MOTOR SKILLS. - ISSN 0031-5125. - STAMPA. - 101:(2005), pp. 737-758.

Temporal Production and Visuo-Spatial Processing

BENUZZI, Francesca;BASSO, GIANPAOLO;NICHELLI, Paolo Frigio
2005

Abstract

Current models of prospective timing hypothesize that estimated duration is influenced either by the attentional load or by the short-term memory requirements of a concurrent nontemporal task. In the present study, we addressed this issue with four dual-task experiments. In Exp. 1, the effect of memory load on both reaction time and temporal production Was proportional to the number of items of a visuospatial pattern to hold in memory. In Exps. 2, 3, and 4, a temporal production task was combined with two visual search tasks involving either pre-attentive or attentional processing. Visual tasks interfered with temporal production: produced intervals were lengthened proportionally to the display size. In contrast, reaction times increased with display size only when a serial, effortful search was required. It appears that memory and perceptual set size, rather than nonspecific attentional or short-term load, can influence prospective timing.
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Temporal Production and Visuo-Spatial Processing / BENUZZI, Francesca; BASSO, GIANPAOLO; NICHELLI, Paolo Frigio. - In: PERCEPTUAL AND MOTOR SKILLS. - ISSN 0031-5125. - STAMPA. - 101:(2005), pp. 737-758.
BENUZZI, Francesca; BASSO, GIANPAOLO; NICHELLI, Paolo Frigio
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11380/305066
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