title: Deleterious effects of roving on learned tasks.
abstract: In typical perceptual learning experiments, one stimulus type (e.g., a bisection stimulus offset either to the left or right) is presented per trial. In roving, two different stimulus types (e.g., a 30' and a 20' wide bisection stimulus) are randomly interleaved from trial to trial. Roving can impair both perceptual learning and task sensitivity. Here, we investigate the relationship between the two. Using a bisection task, we found no effect of roving before training. We next trained subjects and they improved. A roving condition applied after training impaired sensitivity.
authors.affiliation: Laboratory of Psychophysics, Brain Mind Institute, École Polytechnique Fédérale de Lausanne (EPFL), Switzerland. Electronic address: aaron.clarke@epfl.ch.
authors.forename: Aaron M
authors.initials: AM
authors.lastname: Clarke
authors.affiliation: Laboratory of Psychophysics, Brain Mind Institute, École Polytechnique Fédérale de Lausanne (EPFL), Switzerland.
authors.forename: Lukasz
authors.initials: L
authors.lastname: Grzeczkowski
authors.affiliation: Department of Psychology, University of Bern, Switzerland.
authors.forename: Fred W
authors.initials: FW
authors.lastname: Mast
authors.affiliation: Department of Psychology, Vanderbilt University, TN, USA.
authors.forename: Isabel
authors.initials: I
authors.lastname: Gauthier
authors.affiliation: Laboratory of Psychophysics, Brain Mind Institute, École Polytechnique Fédérale de Lausanne (EPFL), Switzerland.
authors.forename: Michael H
authors.initials: MH
authors.lastname: Herzog
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D005260:Female; D006801:Humans; D007858:Learning / Q000502:physiology*; D008297:Male; D010364:Pattern Recognition, Visual / Q000502:physiology; D010775:Photic Stimulation / Q000379:methods; D012684:Sensory Thresholds / Q000502:physiology; D013028:Space Perception / Q000502:physiology*; D013647:Task Performance and Analysis; D055815:Young Adult
keywords: Bisection; Blocking; Perceptual learning; Roving