Lateral interactions in visual perception and in physiology of the retino-geniculate pathway in primates:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
2005
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| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | Tübingen, Univ., Diss., 2005 |
| Beschreibung: | 98 S. Ill., graph. Darst. |
Internformat
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| 245 | 1 | 0 | |a Lateral interactions in visual perception and in physiology of the retino-geniculate pathway in primates |c vorgelegt von Vladislav Kozyrev |
| 264 | 1 | |c 2005 | |
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Datensatz im Suchindex
| _version_ | 1804135388574384128 |
|---|---|
| adam_text | Contents
1. Introduction 7
1.1. Phenomenon of lateral interactions 7
1.2. Basic structure of visual pathway in primates 8
1.3. Receptive fields 10
1.3. Overview of methods 13
1.3.1. Extracellular single cell recording technique 13
1.3.2. Human psychophysics 14
1.3.3. Computational neuroscience 15
1.4. Objectives of the present study 15
2. Methods 18
2.1. Psychophysical experiments 18
2.1.1. Subjects 18
2.1.2. Visual stimuli 18
2.2.3. Procedure 19
2.2. Physiological experiments 20
2.2.1. Animal preparation 20
2.2.2. Visual stimuli 22
2.2.3. Data Acquisition 24
3. Modulation of the perceived flicker strength and the response amplitudes of single LGN
neurons 25
3.1. Psychophysical data 25
3.2. Cell response data 27
3.3. Linear analysis 30
3.4. Influence of contrasts 35
3.5. Non-linearities in the physiological data 37
4. Intermediate discussion 43
4.1. Comparison with other types of lateral interactions 43
4.2. Physiological processes 44
4.3. Correlation between physiology and psychophysics 46
5. Distribution of RFs in the primate (human) fovea 48
5.1. Main assumptions 48
5.2. The model 50
5
5.2.1. Building of isodense arrays 50
5.2.2. Introduction of cell density gradients 56
5.3. Validity of the simulated array 56
6. Output of the LGN cell array and flicker perception 58
6.1. Influence of spatial displacement between the stimulus and the RF upon the
responses of LGN neurons 58
6.1.1. Visual stimuli 58
6.1.2. Simulation of neuronal responses 60
6.1.3.Properties of the foveal RF 67
6.2. Encoding the stimulus by an ideal array. Cortical detector 69
6.3. Fitting the detector output to psychophysical data 72
6.4. Implications of non-linear interactions 78
7. Final discussion 80
7.1. Responses of neurons in the cell array 80
7.2. Physiological basis of the flicker perception 82
7.3. Possible application of the results 84
Summary 86
Appendices 88
A.I. Optimal size of the centra] stimulus 88
A.2. Estimation of the RF parameters 89
References 90
6
|
| adam_txt |
Contents
1. Introduction 7
1.1. Phenomenon of lateral interactions 7
1.2. Basic structure of visual pathway in primates 8
1.3. Receptive fields 10
1.3. Overview of methods 13
1.3.1. Extracellular single cell recording technique 13
1.3.2. Human psychophysics 14
1.3.3. Computational neuroscience 15
1.4. Objectives of the present study 15
2. Methods 18
2.1. Psychophysical experiments 18
2.1.1. Subjects 18
2.1.2. Visual stimuli 18
2.2.3. Procedure 19
2.2. Physiological experiments 20
2.2.1. Animal preparation 20
2.2.2. Visual stimuli 22
2.2.3. Data Acquisition 24
3. Modulation of the perceived flicker strength and the response amplitudes of single LGN
neurons 25
3.1. Psychophysical data 25
3.2. Cell response data 27
3.3. Linear analysis 30
3.4. Influence of contrasts 35
3.5. Non-linearities in the physiological data 37
4. Intermediate discussion 43
4.1. Comparison with other types of lateral interactions 43
4.2. Physiological processes 44
4.3. Correlation between physiology and psychophysics 46
5. Distribution of RFs in the primate (human) fovea 48
5.1. Main assumptions 48
5.2. The model 50
5
5.2.1. Building of isodense arrays 50
5.2.2. Introduction of cell density gradients 56
5.3. Validity of the simulated array 56
6. Output of the LGN cell array and flicker perception 58
6.1. Influence of spatial displacement between the stimulus and the RF upon the
responses of LGN neurons 58
6.1.1. Visual stimuli 58
6.1.2. Simulation of neuronal responses 60
6.1.3.Properties of the foveal RF 67
6.2. Encoding the stimulus by an ideal array. Cortical detector 69
6.3. Fitting the detector output to psychophysical data 72
6.4. Implications of non-linear interactions 78
7. Final discussion 80
7.1. Responses of neurons in the cell array 80
7.2. Physiological basis of the flicker perception 82
7.3. Possible application of the results 84
Summary 86
Appendices 88
A.I. Optimal size of the centra] stimulus 88
A.2. Estimation of the RF parameters 89
References 90
6 |
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| spelling | Kozyrev, Vladislav 1968- Verfasser (DE-588)130350176 aut Lateral interactions in visual perception and in physiology of the retino-geniculate pathway in primates vorgelegt von Vladislav Kozyrev 2005 98 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Tübingen, Univ., Diss., 2005 (DE-588)4113937-9 Hochschulschrift gnd-content HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=014819740&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Kozyrev, Vladislav 1968- Lateral interactions in visual perception and in physiology of the retino-geniculate pathway in primates |
| subject_GND | (DE-588)4113937-9 |
| title | Lateral interactions in visual perception and in physiology of the retino-geniculate pathway in primates |
| title_auth | Lateral interactions in visual perception and in physiology of the retino-geniculate pathway in primates |
| title_exact_search | Lateral interactions in visual perception and in physiology of the retino-geniculate pathway in primates |
| title_exact_search_txtP | Lateral interactions in visual perception and in physiology of the retino-geniculate pathway in primates |
| title_full | Lateral interactions in visual perception and in physiology of the retino-geniculate pathway in primates vorgelegt von Vladislav Kozyrev |
| title_fullStr | Lateral interactions in visual perception and in physiology of the retino-geniculate pathway in primates vorgelegt von Vladislav Kozyrev |
| title_full_unstemmed | Lateral interactions in visual perception and in physiology of the retino-geniculate pathway in primates vorgelegt von Vladislav Kozyrev |
| title_short | Lateral interactions in visual perception and in physiology of the retino-geniculate pathway in primates |
| title_sort | lateral interactions in visual perception and in physiology of the retino geniculate pathway in primates |
| topic_facet | Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=014819740&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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