Contextual Effects On Visual Perception
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Contextual Effects On Visual Perception
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Author :
language : en
Publisher:
Release Date : 2021
Contextual Effects On Visual Perception written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with categories.
In this thesis we improve our understanding of how contextual effects affect the activity of neurons in primary visual cortex (V1). We investigate a variety of contextual effects, starting with the position of visual stimuli on the retina. We then look at the neural traces of iconic memory in V1, and how those can be affected by adding the context of a cue. We then show that mice can perceive figures that are defined by texture patterns, and that the context of being part of a figure elicits enhanced V1 responses to identical visual stimulation. We further suggest that the contextual modulation is driven by interneurons in the cortex that modulate the responses of cells around them. Last, we investigate the effects of task-related context on visual perception in the mouse and in humans. We present further evidence that V1 is much more than a simple relay station of neural signals but encodes different forms of contextual information.
Spatial And Temporal Contextual Effects In Early Visual Physiology And Visual Perception
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Author : Stephanie Wissig
language : en
Publisher:
Release Date : 2012
Spatial And Temporal Contextual Effects In Early Visual Physiology And Visual Perception written by Stephanie Wissig and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
An Examination Of Context Effects In Visual Perception
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Author : Gregory P. Gordon
language : en
Publisher:
Release Date : 1973
An Examination Of Context Effects In Visual Perception written by Gregory P. Gordon and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Visual perception categories.
Cognition And Motor Processes
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Author : W. Prinz
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Cognition And Motor Processes written by W. Prinz and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Psychology categories.
The issue of the relationship between cognition and motor processes can be - and has been - raised at different levels of analysis. At the neurophysiological level it refers to the interactions between afferent and efferent information. At the neurological and neuropsychological level it relates to the mutual dependencies between the sensory and the motor part of the brain, or, more precisely, between sensory and motor functions of various parts of the brain. In psychology, the issue under debate concerns, at a molecular level, the relationship between percep tion and movement or, at a more molar level, the relations between cognition and action. For the title of this book we deliberately decided to combine two terms that are taken from two of these levels ,in order to emphasize both the multilevel structure of the issues involved and the multidis ciplinary nature of the following contributions. Although the term "cognition" has been tremendously misused in recent years (at least in psychology), it is still the only term available to serve as a convenient collective name for all sorts of cognitive processes and functions.
The Hierarchical Nature Of Acquisition Of Visual Specificity In Spatial Contextual Cueing
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Author : Kin-Pou Lie
language : en
Publisher: Open Dissertation Press
Release Date : 2017-01-27
The Hierarchical Nature Of Acquisition Of Visual Specificity In Spatial Contextual Cueing written by Kin-Pou Lie and has been published by Open Dissertation Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-01-27 with categories.
This dissertation, "The Hierarchical Nature of Acquisition of Visual Specificity in Spatial Contextual Cueing" by Kin-pou, Lie, 李健豹, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. DOI: 10.5353/th_b4322396 Subjects: Context effects (Psychology) Attention Perceptual learning Visual perception
Social Psychology Of Visual Perception
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Author : Emily Balcetis
language : en
Publisher: Psychology Press
Release Date : 2010-05-31
Social Psychology Of Visual Perception written by Emily Balcetis and has been published by Psychology Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-05-31 with Psychology categories.
This volume takes a contemporary and novel look at how people see the world around them. We generally believe we see our surroundings and everything in it with complete accuracy. However, as the contributions to this volume argue, this assumption is wrong: people’s view of their world is cloudy at best. Social Psychology of Visual Perception is a thorough examination of the nature and determinants of visual perception, which integrates work on social psychology and vision. It is the first broad-based volume to integrate specific sub-areas into the study of vision, including goals and wishes, sex and gender, emotions, culture, race, and age. The volume tackles a range of engaging issues, such as what is happening in the brain when people look at attractive faces, or if the way our eyes move around influences how happy we are and could help us reduce stress. It reveals that sexual desire, our own sexual orientation, and our race affect what types of people capture our attention. It explores whether our brains and eyes work differently when we are scared or disgusted, or when we grow up in Asia rather than North America. The multiple perspectives in the book will appeal to researchers and students in range of disciplines, including social psychology, cognition, evolutionary psychology, and neuroscience.
Contextual Modulations Of Visual Perception And Visual Cortex Activity In Humans
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Author : B. de Haas
language : en
Publisher:
Release Date : 2014
Contextual Modulations Of Visual Perception And Visual Cortex Activity In Humans written by B. de Haas and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
The Time Course Of Contextual Valence And Self Relevance Effects On The Perception Of Faces With Direct Versus Averted Gaze
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Author : Sarah McCrackin
language : en
Publisher:
Release Date : 2017
The Time Course Of Contextual Valence And Self Relevance Effects On The Perception Of Faces With Direct Versus Averted Gaze written by Sarah McCrackin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with Context effects (Psychology) categories.
We see faces every day within a rich situational context. Previous ERP research has demonstrated that priming faces with contextual sentences varying in self-relevance and valence alters electrocortical and emotional responding to them, though the time-course of these effects is still unclear. It is also unclear if these effects interact with another cue that inherently contains emotional and self-referential information: whether or not the face is looking at the participant. We primed direct and averted gaze neutral faces (gaze manipulation) with emotional sentences to give them context. These sentences contained positive or negative opinions (valence manipulation) that the face held of the participants or of someone else (self-relevance manipulation). After reading each sentence, participants viewed the corresponding face and rated how positive or negative, and how affectively aroused, it made them feel. Eye-tracking enforced sentence reading and face fixation, while ERPs recorded at face onset tracked the time-course of when context and gaze effects interacted. Faces put into self-relevant contexts were more arousing than those in other-relevant contexts, and elicited different ERP waveforms just 150ms post-face, earlier than previously reported. This self-relevance effect was modulated by valence at both the behavioural and ERP level. Finally, faces put into positive self-referential contexts elicited different N170 ERP amplitudes depending on gaze direction, interacting during the time window thought to reflect the structural encoding of the face. These findings were paralleled in our behavioural measures, where positive self-referential faces made participants feel more positive if they had direct rather than averted gaze. These results indicate that the contextual cues of self-relevance and valence impact early visual perception of neutral faces in a complex and nuanced manner, interacting with gaze direction. They emphasize the importance of studying the effect of gaze cues on face perception within context mimicking the complexities of real world interactions.
Attention In Vision
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Author : A.H.C. van der Heijden
language : en
Publisher: Psychology Press
Release Date : 2004-03-01
Attention In Vision written by A.H.C. van der Heijden and has been published by Psychology Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-03-01 with Psychology categories.
Attention in Vision is an important work which aims to identify, address and solve some major problems and issues in the psychology of visual perception, attention and intentional control. The central aim is to investigate how people use their visual perception in the performance of tasks and to explore how the intentional control of action is achieved. Through an extensive review of the philosophy of psychology, the history of ideas and theories of intentional control, and an analysis of various tasks, a new theory is developed which argues that there is an important difference between report tasks and act tasks. The first section of the book introduces the issues of visual perception in a historical context and outlines van der Heijden's theory. The theory is developed in the second and third sections by analysing the findings from some of the main experimental paradigms of cognitive psychology and applying the theory to act tasks. Finally, the epilogue skilfully draws together the theory into an explanation of different historical and theoretical perspectives in psychology. This book will be invaluable to researchers and high-level undergraduates in the field of visual perception and attention.
Context Effects On Visual Attention During Sentence Comprehension
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Author : Peter Anthony Lucas
language : en
Publisher:
Release Date : 1981
Context Effects On Visual Attention During Sentence Comprehension written by Peter Anthony Lucas and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Comprehension categories.