Voluntary attention increases perceived spatial frequency

Jared Abrams, Antoine Barbot, Marisa Carrasco

Research output: Contribution to journalArticle

Abstract

Voluntary covert attention selects relevant sensory information for prioritized processing. The behavioral and neural consequences of such selection have been extensively documented, but its phenomenology has received little empirical investigation. Involuntary attention increases perceived spatial frequency (Gobell & Carrasco, 2005), but involuntary attention can differ from voluntary attention in its effects on performance in tasks mediated by spatial resolution (Yeshurun, Montagna, & Carrasco, 2008). Therefore, we ask whether voluntary attention affects the subjective appearance of spatial frequency-a fundamental dimension of visual perception underlying spatial resolution. We used a demanding rapid serial visual presentation task to direct voluntary attention and measured perceived spatial frequency at the attended and unattended locations. Attention increased the perceived spatial frequency of suprathreshold stimuli and also improved performance on a concurrent orientation discrimination task. In the control experiment, we ruled out response bias as an alternative account by using a lengthened interstimulus interval, which allows observers to disengage attention from the cued location. In contrast to the main experiment, the observers showed neither increased perceived spatial frequency nor improved orientation discrimination at the attended location. Thus, this study establishes that voluntary attention increases perceived spatial frequency. This phenomenological consequence links behavioral and neurophysiological studies on the effects of attention.

Original languageEnglish (US)
Pages (from-to)1510-1521
Number of pages12
JournalAttention, Perception, and Psychophysics
Volume72
Issue number6
DOIs
StatePublished - Aug 2010

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discrimination
Spatial Frequency
visual perception
Visual Perception
experiment
Task Performance and Analysis
phenomenology
Automatic Data Processing
performance
stimulus
trend
Involuntary
Experiment
Discrimination
Observer
Discrimination (Psychology)
Phenomenology
Stimulus
Fundamental
Response Bias

ASJC Scopus subject areas

  • Sensory Systems
  • Experimental and Cognitive Psychology

Cite this

Voluntary attention increases perceived spatial frequency. / Abrams, Jared; Barbot, Antoine; Carrasco, Marisa.

In: Attention, Perception, and Psychophysics, Vol. 72, No. 6, 08.2010, p. 1510-1521.

Research output: Contribution to journalArticle

Abrams, Jared ; Barbot, Antoine ; Carrasco, Marisa. / Voluntary attention increases perceived spatial frequency. In: Attention, Perception, and Psychophysics. 2010 ; Vol. 72, No. 6. pp. 1510-1521.
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