Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 1797 for “"Perceptual"”.
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Prenatal Perceptual Experience and Postnatal Perceptual Preferences: Evidence for Attentional-Bias in Perceptual Learning
… stimulation can interfere with prenatal perceptual learning. However, the nature and extent of this interference is not well understood. This study further assessed this issue by exposing three groups of bobwhite quail embryos to (a) no unusual prenatal stimulation, (b) a bobwhite …
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Perceptual Expectation
… trying to figure out what sort of mental state a perceptual expectation like this is, from the angle of both its content (noun-phrase, singular-when-filled, perceptual) and its functional profile (uses content from memory, contributes content to occurrent perception, dispositionally …
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Perceptual deadtime: Is there processing latency in the perceptual system
"The deadtime effect is a perceptual phenomenon observed in visual search tasks in which target stimuli may be delayed up to 50 milliseconds with no apparent effect on the determination of target identity as measured by choice reaction times. Several experiments evaluated the hypothesis that the …
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Towards Perceptual Augmentation
This thesis explores the concept of perceptual augmentation, focusing on expanding human sensory capabilities beyond their biological limitations. It challenges traditional approaches to sensory enhancement by emphasizing the importance of perception over mere sensory input. Drawing inspiration …
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A Learning Theory Paradigm for Perceptual Vigilance and Perceptual Defense Phenomena
Made available in DSpace on 2014-12-03T23:50:34Z (GMT). No. of bitstreams: 1 0009124.pdf: 3325466 bytes, checksum: 06070e8a05a212ae0807c94a1b431d42 (MD5) Previous issue date: 1954
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Perceptual texture similarity estimation
… ability of computational features to estimate perceptual texture similarity. In the first part of this thesis, we conducted two evaluation experiments on the ability of 51 computational feature sets to estimate perceptual texture similarity using two differ-ent evaluation methods, namely, …
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Seeing and Perceptual Content
… what a subject perceives, as well as what her perceptual states represent, are independent of the interests of those attributing the relevant states to her), and <em>determinacy</em> (the view that perceptual content is relatively determinate). I challenge both of these assumptions, and develop …
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Inference-driven perceptual optimization
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-05-01
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Specialization of perceptual processes
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1993.
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Perceptual decomposition as inference
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Brain and Cognitive Sciences, 1990.
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Contextual Control of Perceptual Behavior
This paper offers an experimental analysis of changes in perception. In doing so, the relative flexibility of a person's perception of color as a product of interacting with other colors will be demonstrated through a matching procedure in a training and testing methodology. The analysis focuses on …
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Perceptual Learning Of Object Shape
… of familiar shapes. We used a paradigm of perceptual learning during visual search to explore what features human observers use to identify objects. Human subjects were trained to search for a target object embedded in an array of distractors, until their performance improved from chance …
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A perceptual device: Locus Moment
… vacancies and remnants, Locus Moment acts as a perceptual device. Vital for a moment, this event attempts to shape our understanding of these vacancies. As Locus Moment remains in the mind as an afterimage, one is encouraged to search for the latent potential that exists within the Houston …
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Perceptual Precedence in Picture Processing
… goodness of the form in the stimulus mediate the perceptual precedence of global and local levels.</p><p>Attempts to generalize the results of the above studies to real-world perception are very tentative. The nature of the stimuli used in global precedence research is markedly different from that …
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PERCEPTUAL REPRESENTATION OF SPEAKER GENDER
… analyses were used to ascertain listeners’ perceptual organization of speakers. Cluster solutions for listeners’ categorizations of general similarity revealed a complex hierarchical structure in which speakers were broadly differentiated based on gender prototypicality, and more finely …
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Perceptual development in blind children
The purpose of this study was to investigate tue effects of prolonged deficit in one sense modality (vision) on the development of perception in another sense modality (tactile-kinesthesis). Specifically, the absence of vision from early in life was hypothesized as having a retarding effect on the …
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Perceptual similarity of closed contours
A model is presented for characterizing the perceptual similarities of closed contours, utilizing a Fourier analysis on the cumulative angular bend of the curve. The model is tested in four experiments, using both ratings of similarity and accuracy of discrimination. The results indicate that in …
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Perceptual refinement for hierarchical radiosity
… of the human visual system to produce a perceptually based refinement oracle for the hierarchical radiosity algorithm. Tests of the perceptual oracle shows that it allows the hierarchical radiosity algorithm to produce the same visual quality output in half the time and using half the …
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