Attention trades off spatial acuity

Barbara Montagna, Franco Pestilli, Marisa Carrasco

Research output: Contribution to journalArticle

Abstract

Covertly attending to a stimulus location increases spatial acuity. Is such increased spatial acuity coupled with a decreased acuity at unattended locations? We measured the effects of exogenous (transient and involuntary) and endogenous (sustained and voluntary) attention on observers' acuity thresholds for a Landolt gap resolution task at both attended and unattended locations. Both types of attention increased acuity at the attended and decreased it at unattended locations relative to a neutral baseline condition. These trade-off findings support the idea that limited processing resources affect early vision, even when the display is impoverished and there is no location uncertainty. There was no benefit without a cost.

Original languageEnglish (US)
Pages (from-to)735-745
Number of pages11
JournalVision Research
Volume49
Issue number7
DOIs
StatePublished - Apr 29 2009

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Uncertainty
Costs and Cost Analysis

Keywords

  • Cost and benefit
  • Endogenous attention
  • Exogenous attention
  • Landolt acuity
  • Limited resources
  • Spatial covert attention
  • Spatial resolution

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems

Cite this

Montagna, B., Pestilli, F., & Carrasco, M. (2009). Attention trades off spatial acuity. Vision Research, 49(7), 735-745. https://doi.org/10.1016/j.visres.2009.02.001

Attention trades off spatial acuity. / Montagna, Barbara; Pestilli, Franco; Carrasco, Marisa.

In: Vision Research, Vol. 49, No. 7, 29.04.2009, p. 735-745.

Research output: Contribution to journalArticle

Montagna, B, Pestilli, F & Carrasco, M 2009, 'Attention trades off spatial acuity', Vision Research, vol. 49, no. 7, pp. 735-745. https://doi.org/10.1016/j.visres.2009.02.001
Montagna B, Pestilli F, Carrasco M. Attention trades off spatial acuity. Vision Research. 2009 Apr 29;49(7):735-745. https://doi.org/10.1016/j.visres.2009.02.001
Montagna, Barbara ; Pestilli, Franco ; Carrasco, Marisa. / Attention trades off spatial acuity. In: Vision Research. 2009 ; Vol. 49, No. 7. pp. 735-745.
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