Dendritic calcium accumulation in visual interneurons of the blowfly:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | German |
| Veröffentlicht: |
1998
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| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | III, 119 S. Ill., graph. Darst. |
Internformat
MARC
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| 100 | 1 | |a Dürr, Volker |e Verfasser |4 aut | |
| 245 | 1 | 0 | |a Dendritic calcium accumulation in visual interneurons of the blowfly |c by Volker Dürr |
| 264 | 1 | |c 1998 | |
| 300 | |a III, 119 S. |b Ill., graph. Darst. | ||
| 336 | |b txt |2 rdacontent | ||
| 337 | |b n |2 rdamedia | ||
| 338 | |b nc |2 rdacarrier | ||
| 502 | |a Bielefeld, Univ., Diss., 1998 | ||
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| 650 | 0 | 7 | |a Dendrit |g Histologie |0 (DE-588)4326242-9 |2 gnd |9 rswk-swf |
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Datensatz im Suchindex
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| adam_text |
CONTENTS
1
1NTRODUCTION
1
1.1
VISUAL
INFORMATION
PROCESSING
IN
THE
BLOWFLY
1
1.1.
1
THE
FIRST
TWO
STEPS:
RETINOTOPIC
PROCESSING
OF
LOCAL
VISUAL
INFORMATION
2
1.1.2
THE
THIRD
STEP:
DETECTION
OF
VISUAL
MOTION
4
1.1.3
THE
FOURTH
STEP:
LARGE-FIELD
INTEGRATION
BY
TANGENTIAL
CELLS
OF
THE
LOBULA
PLATE
6
1.1.4
CELLULAR
CHARACTERISTICS
AND
FUNCTIONAL
RELEVANCE
OFCH-,
HS
AND
VS-CELLS
7
1.2
DENDRITIC
INTEGRATION
13
1.2.1
ACTIVE
PROPERTIES
OF
TANGENTIAL
CELLS
13
1.2.2
MONITORING
DENDRITIC
CALCIUM
ACCUMULATION
IN
TANGENTIAL
CELLS
14
1.2.3
DENDRITES
WITH
DENDRITIC
SYNAPSES
VERSUS
PURELY
POSTSYNAPTIC
DENDRITES
16
1.3
A NEURAL
CIRCUIT
FOR
THE
DETECTION
OF
MOVING
OBJECTS
17
1.3.1
OBJECT
DETECTION
WITH
VISUAL
MOTION
CUES
17
1.3.2
SMALL-FIELD-TUNING
OF
THE
FIGURE-DETECTION
CIRCUIT
17
1.4
MOTION
ADAPTATION
20
13
QUESTIONS
ADDRESSED
IN
THIS
THESIS
21
2
MATERIAL
AND
METHODS
22
2.1
ANIMAL
PREPARATION
22
2.2
STIMULUS
PRESENTATION
23
23
ELECTROPHYSIOLOGY
25
2.4
ARTIFICIAL
BUFFERING
OF
CALCIUM
IONS
25
2.5
OPICAL
IMAGING
OF
CALCIUM
SIGNALS
26
2.6
IMAGE
PROCESSING
AND
DETERMINATION
OF
CALCIUM
ACCUMULATION
27
2.6.1
COMPENSATION
OF
TIME-VARYING
EFFECTS
30
2.6.2
CONSISTENT
CHOICE
OF
THE
SUBTRACTED
BACKGROUND
FLUORESCENCE
LEVEL
32
2.6.3
COMPENSATION
OF
SPATIAL
INHOMOGENEITY
35
2.6.4
IMPACT
OF
THE
CHOSEN
ANALYZED
REGION
37
2.7
SIMULTANEOUS
RECORDING
OF
MEMBRANE
POTENTIAL
AND
CALCIUM
ACCUMULATION
38
3
RESULTS
41
3.1
GENERAL
OBSERVATIONS
41
3.2
DEPENDENCY
OF
CALCIUM
ACCUMULATION
ON
STIMULUS
CONTRAST
49
3.3
DEPENDENCY
OF
CALCIUM
ACCUMULATION
ON
STIMULUS
SIZE
57
3.4
OVERLAPPING
CALCIUM
SIGNALS
IN
RESPONSE
TO
NON-OVERLAPPING
STIMULI
65
3.5
DEPENDENCY
OF
CALCIUM
ACCUMULATION
ON
STIMULUS
VELOCITY
71
3.6
ON
THE
ROLE
OF
INTRACELLULAR
CALCIUM
IN
ADAPTATION
OF
MOTION-INDUCED
ELECTRICAL
RESPONSES
79
4
DISCUSSION
92
4.1
METHODOLOGICAL
CONSIDERATIONS
93
4.1.1
RELATIVE
FLUORESCENCE
CHANGES
AND
ABSOLUTE
CALCIUM
CONCENTRATION
93
4.1.2
VARIABILITY
OF
AF/F
93
4.1.3
EVALUATION
OF
MEAN
CALCIUM
ACCUMULATION
ACROSS
THE
ENTIRE
DENDRITIC
ARBORISATION
RATHER
THAN
IN
SMALL
BRANCHES
95
II
4.2
SOURCE
AND
FATE
OF
INTRACELLULAR
CALCIUM
97
4.2.1
POSSIBLE
SOURCES
OF
INTRACELLULAR
CALCIUM
IN
TANGENTIAL
CELLS
97
4.2.2
KINETICS
OF
CALCIUM
ACCUMULATION
AND
DECAY
98
4.3
COMPARISON
OF
PURELY
POSTSYNAPTIC
DENDRITES
WITH
PRE
AND
POSTSYNAPTIC
DENDRITES
100
4.3.1
CONTRAST
DEPENDENCY
100
4.3.2
TEMPORAL
FREQUENCY
DEPENDENCY
101
4.3.3
SIZE
DEPENDENCY
101
4.3.4
SPATIAL
OVERLAP
102
4.4
ON
THE
ROLE
OF
DENDRITIC
SYNAPSES
OF
THE
V
CH-CELL
IN
SMALL-FIELD
TUNING
OF
THE
FDL-CELL
105
4.5
A CALCIUM-DEPENDENT
PROCESS
UNDERLYING
MOTION
ADAPTATION
107
5
SUMMARY
110
6APPENDLX
111
7
REFERENCES
113
LIST
OF
ABBREVIATIONS
AND
ACRONYMS
ACKNOWLEDGEMENTS
CURRICULUM
VITAE
M |
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| genre | (DE-588)4113937-9 Hochschulschrift gnd-content |
| genre_facet | Hochschulschrift |
| id | DE-604.BV012099471 |
| illustrated | Illustrated |
| indexdate | 2024-08-16T00:16:58Z |
| institution | BVB |
| language | German |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-008193415 |
| oclc_num | 246116027 |
| open_access_boolean | |
| owner | DE-29T DE-355 DE-BY-UBR DE-11 DE-188 |
| owner_facet | DE-29T DE-355 DE-BY-UBR DE-11 DE-188 |
| physical | III, 119 S. Ill., graph. Darst. |
| publishDate | 1998 |
| publishDateSearch | 1998 |
| publishDateSort | 1998 |
| record_format | marc |
| spelling | Dürr, Volker Verfasser aut Dendritic calcium accumulation in visual interneurons of the blowfly by Volker Dürr 1998 III, 119 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Bielefeld, Univ., Diss., 1998 Calciumkonzentration (DE-588)4423842-3 gnd rswk-swf Dendrit Histologie (DE-588)4326242-9 gnd rswk-swf Visuelle Wahrnehmung (DE-588)4078921-4 gnd rswk-swf Schmeißfliege (DE-588)4179777-2 gnd rswk-swf Interneuron (DE-588)4314951-0 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Schmeißfliege (DE-588)4179777-2 s Visuelle Wahrnehmung (DE-588)4078921-4 s Interneuron (DE-588)4314951-0 s Dendrit Histologie (DE-588)4326242-9 s Calciumkonzentration (DE-588)4423842-3 s DE-604 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=008193415&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Dürr, Volker Dendritic calcium accumulation in visual interneurons of the blowfly Calciumkonzentration (DE-588)4423842-3 gnd Dendrit Histologie (DE-588)4326242-9 gnd Visuelle Wahrnehmung (DE-588)4078921-4 gnd Schmeißfliege (DE-588)4179777-2 gnd Interneuron (DE-588)4314951-0 gnd |
| subject_GND | (DE-588)4423842-3 (DE-588)4326242-9 (DE-588)4078921-4 (DE-588)4179777-2 (DE-588)4314951-0 (DE-588)4113937-9 |
| title | Dendritic calcium accumulation in visual interneurons of the blowfly |
| title_auth | Dendritic calcium accumulation in visual interneurons of the blowfly |
| title_exact_search | Dendritic calcium accumulation in visual interneurons of the blowfly |
| title_full | Dendritic calcium accumulation in visual interneurons of the blowfly by Volker Dürr |
| title_fullStr | Dendritic calcium accumulation in visual interneurons of the blowfly by Volker Dürr |
| title_full_unstemmed | Dendritic calcium accumulation in visual interneurons of the blowfly by Volker Dürr |
| title_short | Dendritic calcium accumulation in visual interneurons of the blowfly |
| title_sort | dendritic calcium accumulation in visual interneurons of the blowfly |
| topic | Calciumkonzentration (DE-588)4423842-3 gnd Dendrit Histologie (DE-588)4326242-9 gnd Visuelle Wahrnehmung (DE-588)4078921-4 gnd Schmeißfliege (DE-588)4179777-2 gnd Interneuron (DE-588)4314951-0 gnd |
| topic_facet | Calciumkonzentration Dendrit Histologie Visuelle Wahrnehmung Schmeißfliege Interneuron Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=008193415&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| work_keys_str_mv | AT durrvolker dendriticcalciumaccumulationinvisualinterneuronsoftheblowfly |