Feature expectation heightens visual sensitivity during fine orientation discrimination

• Published in: Journal of vision (Charlottesville, Va.) Vol. 15; no. 14; p. 14
• Main Authors: Cheadle, Sam, Egner, Tobias, Wyart, Valentin, Wu, Claire, Summerfield, Christopher
• Format: Journal Article
• Language: English
• Published: United States The Association for Research in Vision and Ophthalmology 01.01.2015
• Subjects: Attention - physiology; Cues; Female; Humans; Male; Orientation - physiology; Psychophysics; Visual Perception - physiology; Young Adult
• ISSN: 1534-7362; 1534-7362
• DOI: 10.1167/15.14.14

Attending to a stimulus enhances the sensitivity of perceptual decisions. However, it remains unclear how perceptual sensitivity varies according to whether a feature is expected or unexpected. Here, observers made fine discrimination judgments about the orientation of visual gratings embedded in lo...