Results 81 to 90 of about 127,653 (287)

Using psychophysics to ask if the brain samples or maximizes.

open access: yesJournal of Vision, 2015
The two-alternative forced-choice (2AFC) task is the workhorse of psychophysics and is used to measure the just-noticeable difference, generally assumed to accurately quantify sensory precision.
Daniel Ernesto Acuna   +3 more
semanticscholar   +1 more source

Architect of the Image: Argumentation, Economy and Translation in Gregory of Nyssa’s On the Human Image

open access: yesInternational Journal of Systematic Theology, EarlyView.
Abstract In this contribution to a book symposium on Gregory of Nyssa’s On the Human Image, Morwenna Ludlow reflects on John Behr’s attention to the literary structure and argumentative flow of the book, its interplay with the similarly structured Timaeus of Plato and the difficulties of translating a work of such rhetorical and pastoral sophistication
Morwenna Ludlow
wiley   +1 more source

Spectral tuning and after-effects in neural entrainment

open access: yesBehavioral and Brain Functions
Neural entrainment has become a popular technique to non-invasively manipulate brain rhythms via external, periodic stimulation. However, there is still debate regarding its underlying mechanisms and effects on brain activity.
Maëlan Q. Menétrey, David Pascucci
doaj   +1 more source

Underpowered samples, false negatives, and unconscious learning [PDF]

open access: yes, 2015
The scientific community has witnessed growing concern about the high rate of false positives and unreliable results within the psychological literature, but the harmful impact of false negatives has been largely ignored. False negatives are particularly
Konstantinidis, Emmanouil   +2 more
core   +1 more source

Longitudinal chromatic aberration of the human eye in the visible and near infrared from wavefront sensing, double-pass and psychophysics.

open access: yesBiomedical Optics Express, 2015
Longitudinal Chromatic Aberration (LCA) influences the optical quality of the eye. However, the reported LCA varies across studies, likely associated to differences in the measurement techniques.
Maria Vinas   +4 more
semanticscholar   +1 more source

Effects of social context information on neural face processing in youth with social anxiety disorder

open access: yesJournal of Child Psychology and Psychiatry, EarlyView.
Background Social anxiety disorder (SAD) in youth is associated with significant psychosocial impairments; however, the cognitive and neural mechanisms that maintain it, particularly during childhood and adolescence, remain underexplored. Cognitive models emphasize the role of altered face processing, and neutral facial expressions may be perceived as ...
Anna‐Lina Rauschenbach   +4 more
wiley   +1 more source

Psychophysics Phenomenologized? Sensation and Decision in Visual Motion Perception

open access: yesPhenomenology and Mind, 2016
Experimental phenomenology and psychophysics are two rather different approaches to the study of perception, and rely on first-person descriptions and third-person measurements of the percept, respectively.
Regina Gregori Grgic   +1 more
doaj   +1 more source

Interpretation of absolute judgments using information theory: channel capacity or memory capacity? [PDF]

open access: yes, 2010
Shannon’s information theory has been a popular component of first-order cybernetics. It quantifies information transmitted in terms of the number of times a sent symbol is received as itself, or as another possible symbol.
Nizami, Lance
core  

How do changes in speed affect the perception of duration? [PDF]

open access: yes, 2011
Six experiments investigated how changes in stimulus speed influence subjective duration. Participants saw rotating or translating shapes in three conditions: constant speed, accelerating motion, and decelerating motion.
Matthews, William J
core   +1 more source

Increased neural responsiveness to distractors irrespective of perceptual load explains attention deficit in post‐stroke fatigue

open access: yesJournal of Neuropsychology, EarlyView.
Abstract Post‐stroke fatigue (PSF) is a prevalent symptom associated with attention deficits. However, it is currently unclear what drives these. Here we applied Load Theory of Attention to investigate the role of perceptual load in the relationship between attention, distraction and fatigue levels in PSF.
Annapoorna Kuppuswamy   +4 more
wiley   +1 more source

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