Last edited by Tesho
Tuesday, April 21, 2020 | History

2 edition of Electrophysiological correlates of visual psychophysics found in the catalog.

Electrophysiological correlates of visual psychophysics

C. Hadjizenonos

Electrophysiological correlates of visual psychophysics

  • 353 Want to read
  • 21 Currently reading

Published by UMIST in Manchester .
Written in English


Edition Notes

StatementC. Hadjizenonos ; supervised by N. Parry..
ContributionsParry, N., Optometry and Vision Sciences.
ID Numbers
Open LibraryOL16488719M

Although each of these electrophysiological responses is a different measure of visual cortical activity, and may reflect different neural processes (thereby providing complementary information about the visual system), all of them can be shown to have a general link with psychophysical thresholds, provided that visual stimuli are suitably by: In the present dissertation, I used psychophysics and event-related brain potentials to investigate several aspects of tool embodiment that are otherwise poorly understood. First, we investigated the sensory boundary conditions of tool embodiment, specifically the role of visual feedback during tool use. The visual N1 is a visual evoked potential, a type of event-related electrical potential, that is produced in the brain and recorded on the N1 is so named to reflect the polarity and typical timing of the component. The "N" indicates that the polarity of the component is negative with respect to an average mastoid reference. The "1" originally indicated that it was the first. Stable statistical representations facilitate visual search. Attention, Perception, & Psychophysics, 76(3), p. Quick minds don't blink: Electrophysiological correlates of individual differences in attentional selection.

  We examined visual search for color singleton targets, whose shape was discriminated. Critically, we varied the reward priority of singleton colors (correct fast performance was worth more bonus points for red singletons than for green singletons, or vice versa) to test whether event-related potential signatures of visual selection can be affected by distinct reward priorities for different Cited by:


Share this book
You might also like
Early Christian lives

Early Christian lives

Justice League of America

Justice League of America

State of New-York, an act for completing the five Continental battalions, raised under the direction of this state

State of New-York, an act for completing the five Continental battalions, raised under the direction of this state

Second Republic and Napoleon III.

Second Republic and Napoleon III.

The Battle of Galveston

The Battle of Galveston

The analysis of social change based on observations in Central Africa

The analysis of social change based on observations in Central Africa

Shakti

Shakti

The Christian and Emotional Problems

The Christian and Emotional Problems

Nature Walk Set, 7-Volumes (Nature Walk)

Nature Walk Set, 7-Volumes (Nature Walk)

Animal Biology

Animal Biology

Firepower

Firepower

Unwanted

Unwanted

Cancer registration in England and Wales

Cancer registration in England and Wales

PARTHENON-KONGRESS BASEL.

PARTHENON-KONGRESS BASEL.

great Irish manuscript hunters

great Irish manuscript hunters

Electrophysiological correlates of visual psychophysics by C. Hadjizenonos Download PDF EPUB FB2

Electrophysiological correlates of visual backward masking in patients with first episode psychosis. Favrod O(1), Roinishvili M(2), da Cruz JR(3), Brand A(4), Okruashvili M(5), Gamkrelidze T(5), Figueiredo P(6), Herzog MH(4), Chkonia E(7), Shaqiri A(4).Cited by: 3.

Electrophysiological correlates of visual backward masking in high schizotypic personality traits participants.

Favrod O(1), Sierro G(2), Roinishvili M(3), Chkonia E(4), Mohr C(2), Herzog MH(5), Cappe C(6). Author information: (1Cited by: 5.

Electrophysiological correlates of the focusing of attention within complex visual scenes: N2pc and related ERP components. In Luck, S. & Kappenman, E. (eds.), The Oxford Handbook of ERP Components (pp. – ). Oxford University Press. The Psychophysics Toolbox is a software package that supports visual psychophysics.

Its routines provide an interface between a high-level interpreted language (MATLAB on the Macintosh) and the. Behavioral results were consistent between experiments: COVM was stronger as a joint function of a large set size and longer trailing mask duration.

Electrophysiological data from both studies revealed modulation of a posterior P2 component around ms post-stimulus onset associated with by: There are conflicting views concerning the electrophysiological correlates of visual consciousness.

Whereas one view considers a relatively late positive deflection (LP) as a primary correlate of consciousness, another model links consciousness with earlier negativity (VAN).Cited by: Different Electrophysiological Correlates of Visual Awareness for Detection and Identification We compared the electrophysiological correlates of conscious detection and identification directly by measuring ERPs while participants performed either a task only requiring the conscious detection of the stimulus or a higher-level task requiring Cited by: Both behavioral and electrophysiological results imply that the visual system uses both cues for the recognition process.

The first correlates of this process are observed as a negative amplitude shift, influencing mainly the peak amplitude of the posterior P2 component at about by: Combining psychophysics with ERP and time–frequency analysis, we show that the neural response at about ms reflects perceptual saliency rather than physical cue contrast.

Increasing saliency caused (i) a negative shift of the posterior P2 coinciding with a power decrease in the posterior θ-band and (ii) an amplitude and latency increase of the posterior by: Visual Psychophysics provides a comprehensive, up-to-date set of tools for use in vision science.

The essentials are all here, ranging from practical lessons in creating displays and implementing experiments to theoretical tools for analyzing data in the context of theories. Electrophysiological correlates to cued attentional shifts in the visual and auditory modalities.

Reaction time (RT) is usually speeded and slowed tocorrectly and incorrectly cued target stimuli, respectively, in experiments on attention shift (Posner, ).Cited by:   Purchase Visual Psychophysics and Physiology - 1st Edition. Print Book & E-Book. ISBNBook Edition: 1. The results of the study support the idea that the VAN is the earliest electrophysiological correlate of subjective visual awareness and that the phenomenon of visual awareness emerges early in.

Buy used On clicking this link, a new layer will be open. $ On clicking this link, a new layer will be open. Condition: Used - Like New. Used - Like New. Book Condition: An apparently unread copy in perfect condition.

Dust cover is intact; pages are clean and are not marred by notes or folds of any kind.5/5(1). Schindler, S., Schettino, A. & Pourtois, G. Electrophysiological correlates of the interplay between low-level visual features and emotional content during word reading.

Sci Rep 8, Cited by: 5. In contrast, the current work explored the psychophysical and electrophysiological correlates of passive (task independent) visual experience in texture segmentation by using an inattentional.

Electrophysiological correlates of spatial orienting towards angry faces: A source localization study. Perception of the human face, as well as the social cues derived from it, is central to social interaction and in the communication of threat (Argyle, ), and occurs rapidly, within ms of presentation (e.g., Liu, Harris, & Kanwisher, ).Cited by: Electrophysiological Correlates of Similarity-based Interference during Detection of Visual Forms Article (PDF Available) in Journal of Cognitive Neuroscience 18(6) June with 63 Reads.

Electrophysiological correlates of visual consciousness and selective attention. Mika Koivisto & Antti Revonsuo. Similar books and articles. Comment on Competition for Consciousness Among Visual Events: The Psychophysics of Reentrant Visual Processes (di Lollo, Enns & Rensink, Cited by: Electrophysiological correlates of categorical perception of lexical tones by English learners of Mandarin Chinese: an ERP study and color perception in the visual domain (e.g., Mo et al.

Visual Psychophysics & Electrophysiology lab, Voútes, Iraklion, Greece. likes 11 talking about this 4 were here. Visual Psychophysics & Electrophysiology Lab is part of the Laboratory of 5/5(1).

Electrophysiological correlates of encoding processes in a full-report visual working memory paradigm Kyle W. Killebrew, 1 Gennadiy Gurariy, 1 Candace E.

Peacock, 2 Cited by: 1. The MIT Press is a leading publisher of books and journals at the intersection of science, technology, and the arts. The removal of immediate visual feedback prompted a stronger reliance on internal monitoring processes, which resulted in lower correction rates and a clear error-related negativity.

Electrophysiological Correlates of Cited by: 1. Electrophysiological correlates of the focusing of attention within complex visual scenes: N2pc and related ERP components. In S. Luck & E. Kappenman (Eds.), The Oxford Handbook of ERP Components (pp. Visual psychophysics for beginners This post will outline some of the basic methods vision scientists use in experiments, in plain everyday language.

I’m anticipating that future posts will refer back to this as a sort of glossary, so pay attention, this will be on the test. Light Vision Color takes a well-balanced, interdisciplinary approach to our most important sensory system. The book successfully combines basics in vision sciences with recent developments from different areas such as neuroscience, biophysics, sensory psychology and philosophy.

Originally published in this edition has been extensively revised and updated to include new chapters on. Visual working memory (VWM) refers to the ability to store and manipulate visual information for brief periods of time.

Although VWM is an integral aspect of daily cognition [1,2], it is nonetheless capacity limited. Behaviorally, these limitations clearly reveal themselves when set sizes by: 4. Introduction: Flankers can strongly deteriorate performance on a visual target (crowding).

For example, vernier offset discrimination is strongly affected by neighboring flankers. Interestingly, performance for longer and shorter flankers is better than performance for equal length flankers.

We previously found that crowding is strongest when the vernier and the flankers group (equal length Author: Vitaly Chicherov, Gijs Plomp, Michael H.

Herzog. Behavioral data have suggested that perceptual load can modulate spatial selection by influencing the allocation of attentional resources at perceptual-level processing stages (Lavie & Tsal, ). To directly test this hypothesis, event-related potentials (ERPs) were recorded for both low- and high-perceptual-load targets in a probabilistic spatial cuing by: The perception of natural visual scenes that contain many objects poses computational problems that are absent when objects are perceived in isolation1.

Vision researchers have captured this Cited by: 32 3 Visual Psychophysics,80, 60, 40, 20, 0 Visual angle in degrees rods rods cones cones blind spot 70 60 50 40 30 20 10 0 10 20 30 40 50 60 70 Number of receptors per mm sq. Fig. Density distributions of rod and cone receptors across the retinal surface: rod/cone density.

The concreteness effect (CE) describes a processing advantage for concrete over abstract words. Electrophysiologically, the CE manifests in higher N and N amplitudes for concrete words.

The contribution of the stimulus-inherent imageability to the electrophysiological correlates of the CE is not yet fully unraveled. This EEG study focused on the role of imageability irrespective of Author: Laura Bechtold, Marta Ghio, Christian Bellebaum.

on behavioral and electrophysiological correlates of at-tentional capture. We used a cuing procedure similar to the one employed by Folk and Remington (). Spatially According to Bacon and Egeth (), the selection of feature versus singleton search is an intentional choice informed by the characteristics of a given visual search by:   This book is a great overview of visual psychophysics.

It's a joy to read and it covers virtually all of the important concepts. If you are a beginner in the field, you will this book will likely get you excited to dive deeper, if you are advanced you will still find quite a few useful hints and you will most likely be inspired to incorporate this book more closely into your by: Perceptual learning is the specific and relatively permanent modification of perception and behavior following sensory experience.

It encompasses parts of the learning process that are independent from conscious forms of learning and involve structural and/or functional changes in primary sensory cortices.

To investigate how attentional capture in visual search is affected by generalized top-down search strategies, ERPs and behavioral performance were measured in two experiments where spatially nonpredictive color singleton cues preceded visual search arrays that contained one of two equally likely color singletons.

When both singletons served as targets, irrelevant-color singleton cues Cited by: Visual Psychophysics (Handbook of Sensory Physiology / Autrum,H.(Eds):Hdbk logy Vol 7) (Handbook of Sensory Physiology (7 / 4)) Softcover reprint of the original 1st ed.

Edition by Dorothea Jameson (Editor) › Visit Amazon's Dorothea Jameson Page. Find all the books, read about the author, and more. Format: Paperback.

Title of thesis: Electrophysiological correlates of the effect of noise on the auditory system in a. noise exposed population. PhD. Bar-Ilan University, School of Education: Psychophysiological Laboratory.

Name of advisor: Prof. Harvey Babkoff. Title of thesis: Electophysiological correlates (ERPs) of visual hemi-field stimulation using. An overview of the field of perceptual learning--the study of the permanent changes in cortical structure caused by external stimuli.

Perceptual learning is the specific and relatively permanent modification of perception and behavior following sensory experience.

It encompasses parts of the learning process that are independent from conscious forms of learning and involve structural and/or Reviews: 1. Purchase Psychophysics - 1st Edition. Print Book & E-Book. ISBNBook Edition: 1.

The Oxford Handbook of Attention brings together the different research areas that constitute contemporary attention research into one comprehensive and authoritative volume.

In 40 chapters, it covers the most important aspects of attention research from the areas of cognitive psychology, neuropsychology, human and animal neuroscience 4/5(1).Electrophysiological correlates of incidentally learned expectations in human vision Sensory gain control (amplification) as a mechanism of selective attention: electrophysiological and neuroimaging evidence.

Philos Trans R Soc Lond B Biol Sci The VideoToolbox software for visual psychophysics: transforming numbers into movies. Spat Cited by: 4.Neurophysiological Correlates of Human Information Processing: Brain Electrical Activity and Psychophysics (Overview over current projects and recent publications) Our research centers on human information processing where the core method is the topographic analysis of brain electrical activity.