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Full-Text Articles in Computational Neuroscience
Behavioral And Neural Evidence For Perceptual Inference Of Position, Sharif Saleki
Behavioral And Neural Evidence For Perceptual Inference Of Position, Sharif Saleki
Dartmouth College Ph.D Dissertations
Extensive neuroscientific research has advanced our knowledge of the mechanisms involved in the detection and recognition of visual stimuli. However, to guide flexible behavior in a changing world, the brain must also construct stable and coherent perceptual representations from retinal images that are often ambiguous. To resolve ambiguities and uncertainties, the visual system combines its input with other sources of information such as context and prior knowledge to infer the most likely interpretation of a scene. Thus, perception is inherently an inferential process that goes beyond simple detection or recognition of stimuli. Although inference has been studied in many areas …
Cortical Representation Of Learning Social Interactions In Freely Moving Non-Human Primates, Melissa Franch
Cortical Representation Of Learning Social Interactions In Freely Moving Non-Human Primates, Melissa Franch
Dissertations and Theses (Open Access)
The motivation and capacity to be social is necessary for human survival. Successful learning of complex, prosocial behavior stems from the ability to perceive and respond to visual cues, such as the body language and facial expressions, from others in our environment. This dependence on visual information to guide social interaction is especially true for humans and non-human primates. Although recent studies in primate neurophysiology discovered neurons that can encode socially relevant variables, like reward and social actions, the underlying neural mechanisms of learning advanced social concepts, such as cooperation, are not well understood. Further, previous work has identified …
Investigating The Role Of Attention And Memory In Visual Exploration, Jacob E. Suffridge
Investigating The Role Of Attention And Memory In Visual Exploration, Jacob E. Suffridge
Graduate Theses, Dissertations, and Problem Reports (ETD)
This research investigates the role that attention and memory plays in visual exploration through a comprehensive analysis of eye movement and behavioral data, alongside incorporation of a computational saliency model. The purpose of this project is to quantify differences in visual attention over repeated viewings of natural scene images by employing a free viewing task that contains a memory component. In Chapter 2, we explore the task’s behavioral data showing that participants generally memorize our images well before we investigate the effect of numerous object and individual feature inclusion. In Chapter 3, we develop four primary methods to quantify visual …
Saccadic Eye Movements Between Strategic, Interceptive, And Non-Athletes, Brian Szekely
Saccadic Eye Movements Between Strategic, Interceptive, And Non-Athletes, Brian Szekely
College of Graduate Studies: Theses & Dissertations
Introduction: Athletes have differences in object tracking, search strategies, number and duration of fixations, dynamic visual acuity (DVA), and predictive eye movements than non-athletes (NON). However, these eye functions have not been assessed between athlete groups during a task that encompasses antisaccade and DVA characteristics. Purpose: To evaluate the oculomotor control sport paradigm differences between interceptive (INT) and strategic (STR) Division I collegiate athletes, as well as NON with an antisaccade task (AS) and a sport-like dual task (SDT). Methods: Fifty-seven participants (19 STR, 19 INT, and 19 NON) performed 2 trials of an AS and a SDT. Participants stood …