Coding of multivariate stimuli and contextual interactions in the visual cortex:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Freiburg im Breisgau
2017
|
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis Inhaltsverzeichnis |
| Beschreibung: | xii, 132 Blätter Illustrationen, Diagramme 30 cm |
Internformat
MARC
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| 100 | 1 | |a Keemink, Sander Wessel |e Verfasser |0 (DE-588)1151513849 |4 aut | |
| 245 | 1 | 0 | |a Coding of multivariate stimuli and contextual interactions in the visual cortex |c presented by Sander Wessel Keemink |
| 264 | 1 | |a Freiburg im Breisgau |c 2017 | |
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Datensatz im Suchindex
| _version_ | 1804178956592611328 |
|---|---|
| adam_text | CONTENTS
1 INTRODUCTION 1
1.1 PHYSIOLOGY
BACKGROUND........................................................................
3
1.1.1 THE PRIMARY VISUAL C O R T E X
...................................................... 3
1.1.2 CONTEXTUAL M
ODULATION............................................................ 4
1.1.3 CONTEXTUAL MODULATIONS IN M I C E
............................................. 6
1.2 PSYCHOPHYSICS
BACKGROUND..................................................................
7
1.2.1 ORIENTATION ILLU SIO N
S............................................................... 7
1.2.2 SALIENT
FEATURES........................................................................
8
1.3 LINKING PHYSIOLOGY AND
PSYCHOPHYSICS................................................ 10
1.3.1 ORIENTATION ILLU SIO N
S............................................................... 10
1.3.2 SALIENCY
................................
11
1.3.3 MODULATION TU N IN G
.................................................................
11
1.3.4 CODING/DECODING
FRAMEWORK................................................... 12
1.4 CENTRAL HYPOTHESIS AND
QUESTIONS......................................................... 13
1.5 CHAPTER 2: A UNIFYING
PRINCIPLE............................................................ 15
1.6 CHAPTER 3: CODING/DECODING FRAMEWORK FOR CONTEXTUAL MODULATIONS . 15
1.7 CHAPTER 4: IMPLEMENTING CENTER DEPENDENT M ODULATION
.....................
16
1.8 CHAPTER 5: CALCIUM-IMAGING SIGNAL
SEPARATION.................................... 17
1.9 A NIM
ATIONS.........................................................................................
18
2 ELASTICA MODEL FOR CONTEXTUAL MODULATION 19
2.1
INTRODUCTION.........................................................................................
19
2.2 M
ETHODS...............................................................................................
21
2.2.1 E
LASTICA.................................................................
21
2.2.2 NEURAL M O D EL
..........................................................................
23
2.2.3 POPULATION VECTOR
....................................................................
26
2.2.4 COMPUTATIONS
..........................................................................
26
2.3
RESULTS..................................................................................................
26
2.3.1 SINGLE FLANKER ASSOCIATION FIELD
................................................ 27
2.3.2 THE TILT ILLUSION: TWO
FLANKERS................................................... 28
2.3.3 THE TILT ILLUSION: FULL
SURROUND................................................... 32
2.3.4 CONTOUR
DETECTION.....................................................................
33
2.3.5 DEPENDENCY ON MODEL PARAM
ETERS.......................................... 36
2.4
DISCUSSION............................................................................................
36
3 POPULATION CODING OF SINGLE- AND MULTIVARIATE STIMULI 41
3.1
INTRODUCTION.........................................................................................
41
3.2 ENCODING AND DECODING M O D E
L............................................................ 42
3.3 CENTER-SURROUND MODULATION IN V1
...................................................... 49
3.3.1 ATTRACTIVE TILT
ILLUSION...............................................................
51
3.4
DISCUSSION............................................................................................
52
4 VI SURROUND MODULATION, THE TILT ILLUSION, AND VISUAL SALIENCY 56
4.1
INTRODUCTION.........................................................................................
57
4.2 M
ETHODS...............................................................................................
59
4.2.1 ENCODING MODEL
..................................................................... 59
4.2.2 DECODING M
ODELS.....................................................................
61
4.2.3 COMPUTATIONS
..........................................................................
64
4.3
RESULTS..................................................................................................
64
4.3.1 POPULATION RESPONSES
..............................................................
66
4.3.2 TILT ILLUSION AND CENTER ORIENTATION DECODING
...........................
68
4.3.3 SALIENCY SIGNALS
.......................................................................
73
4.3.4 SALIENCY AND ORIENTATION DECODING OF COMPLEX STIMULI
............
76
4.4
DISCUSSION............................................................................................
76
4.4.1 EXPLAINING TILT ILLUSION D
ATA...................................................... 78
4.4.2
SALIENCY...................................................................................
79
4.4.3 NORMATIVE MODELS OF CENTER DEPENDENT MODULATION
...............
80
4.5 A
PPENDIX....................................................................
80
4.5.1 MAXIMUM-BASED SALIENCY
...................................................... 80
4.5.2 MEAN-BASED
SALIENCY...............................................................
82
4.5.3 THE ATTRACTIVE TILT
ILLUSION......................................................... 83
5 CALCIUM-IMAGING SIGNAL SEPARATION 88
5.1 INTRODUCTION
.........................................................................................
88
5.2 FISSA WORKFLOW
.................................................................................
90
5.2.1 NEUROPIL
DEFINITION..................................................................
91
5.2.2 DECONTAMINATION ALGORITHM
S................................................... 93
5.3 METHOD COM
PARISONS...........................................................................
99
5.3.1 EXPERIMENTAL DATA
.................................................................. 99
5.3.2 SIMULATED D A T A
........................................................................
99
5.3.3 PIXEL-BASED METHOD COM
PARISON............................................. 105
5.4 OTHER FISSA FEATURES
...............................................
105
5.5 FISSA USAGE
......................................................................................
107
5.6
DISCUSSION............................................................................................
109
5.7 M
ETHODS...................................................................................
110
5.7.1 DATA DETAILS
.............................................................................
110
5.7.2 MOTION
CORRECTION.....................................................................
110
5.7.3 SOFTWARE
................................................................................
110
5.7.4 H ARDWARE
................................................................................
110
6 GENERAL DISCUSSION 111
6.1 BEYOND THE INDIVIDUAL CHAPTERS
...........................................................
112
6.2 COMPARISON TO PREVIOUS WORK
...............................................................
113
6.3 L IM
ITATIONS.........................................................................................
115
6.4 FUTURE W O RK
.........................................................................................
116
BIBLIOGRAPHY 120
|
| any_adam_object | 1 |
| author | Keemink, Sander Wessel |
| author_GND | (DE-588)1151513849 |
| author_facet | Keemink, Sander Wessel |
| author_role | aut |
| author_sort | Keemink, Sander Wessel |
| author_variant | s w k sw swk |
| building | Verbundindex |
| bvnumber | BV045230233 |
| ctrlnum | (OCoLC)1135390590 (DE-599)DNB1153152495 |
| discipline | Physik Biologie |
| format | Thesis Book |
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| genre_facet | Hochschulschrift |
| id | DE-604.BV045230233 |
| illustrated | Illustrated |
| indexdate | 2024-07-10T08:12:13Z |
| institution | BVB |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-030618624 |
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| physical | xii, 132 Blätter Illustrationen, Diagramme 30 cm |
| publishDate | 2017 |
| publishDateSearch | 2017 |
| publishDateSort | 2017 |
| record_format | marc |
| spelling | Keemink, Sander Wessel Verfasser (DE-588)1151513849 aut Coding of multivariate stimuli and contextual interactions in the visual cortex presented by Sander Wessel Keemink Freiburg im Breisgau 2017 xii, 132 Blätter Illustrationen, Diagramme 30 cm txt rdacontent n rdamedia nc rdacarrier Dissertation Albert-Ludwigs-Universität Freiburg im Breisgau 2017 (DE-588)4113937-9 Hochschulschrift gnd-content B:DE-101 application/pdf http://d-nb.info/1153152495/04 Inhaltsverzeichnis DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=030618624&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Keemink, Sander Wessel Coding of multivariate stimuli and contextual interactions in the visual cortex |
| subject_GND | (DE-588)4113937-9 |
| title | Coding of multivariate stimuli and contextual interactions in the visual cortex |
| title_auth | Coding of multivariate stimuli and contextual interactions in the visual cortex |
| title_exact_search | Coding of multivariate stimuli and contextual interactions in the visual cortex |
| title_full | Coding of multivariate stimuli and contextual interactions in the visual cortex presented by Sander Wessel Keemink |
| title_fullStr | Coding of multivariate stimuli and contextual interactions in the visual cortex presented by Sander Wessel Keemink |
| title_full_unstemmed | Coding of multivariate stimuli and contextual interactions in the visual cortex presented by Sander Wessel Keemink |
| title_short | Coding of multivariate stimuli and contextual interactions in the visual cortex |
| title_sort | coding of multivariate stimuli and contextual interactions in the visual cortex |
| topic_facet | Hochschulschrift |
| url | http://d-nb.info/1153152495/04 http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=030618624&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| work_keys_str_mv | AT keeminksanderwessel codingofmultivariatestimuliandcontextualinteractionsinthevisualcortex |
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