Visual scene perception in the human brain : connections to memory, categorization, and social cognition

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Abstract/Contents

Abstract
The human visual system faces a monumental data processing challenge: using about a pound of slow, inexact biological processors, it must analyze the barrage of constantly-shifting light patterns hitting the eye and quickly extract a stable, high-level model of the environment around us. Almost every piece of this process is mysterious: exactly what information is being gleaned from the visual signal, how this information is represented, and how this processing is implemented in neural circuits. Despite the superiority of silicon computers for most big-data processing, our emulations of the human visual system are still rudimentary, and can capture only basic information from visual images such as which objects are present. In this work, I describe a number of projects toward understanding higher-level processing of visual scenes. The first examines the neural basis of understanding human-object interactions, showing how an emergent property of a scene (created by the interaction of two scene parts) can activate representations in social cognition regions. The second investigates how scenes are categorized, arguing that one of the fundamental features encoded about a scene is the type of actions which could be performed in that environment. Finally, I present a large body of work on how scene processing interacts with long-term memory systems. These chapters describe several novel types of mathematical models for measuring connections between brain regions, and end with a new organizing proposal for scene perception regions.

Description

Type of resource text
Form electronic; electronic resource; remote
Extent 1 online resource.
Publication date 2015
Issuance monographic
Language English

Creators/Contributors

Associated with Baldassano, Christopher
Associated with Stanford University, Department of Computer Science.
Primary advisor Li, Fei Fei, 1976-
Thesis advisor Li, Fei Fei, 1976-
Thesis advisor Beck, Diane, (Neuroscientist)
Thesis advisor Liang, Percy
Advisor Beck, Diane, (Neuroscientist)
Advisor Liang, Percy

Subjects

Genre Theses

Bibliographic information

Statement of responsibility Christopher Baldassano.
Note Submitted to the Department of Computer Science.
Thesis Thesis (Ph.D.)--Stanford University, 2015.
Location electronic resource

Access conditions

Copyright
© 2015 by Christopher Anthony Baldassano
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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