Difference between revisions of "BiologicalArchitectureGlobalCircuits"
From aHuman Wiki
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'''implementation:''' | '''implementation:''' | ||
| − | * gross architecture is that there are input nuclei, cerebellar cortex, and output nuclei | + | * gross architecture is that there are '''input nuclei, cerebellar cortex, and output nuclei''' |
| − | * there are climbing fibers and mossy fibers going from input nuclei to cerebellar cortex | + | * there are '''climbing fibers''' and '''mossy fibers''' going from input nuclei to cerebellar cortex |
* input nuclei are divided into mossy nuclei, which are source of mossy fibers and climbing nuclei which are source of climbing fibers | * input nuclei are divided into mossy nuclei, which are source of mossy fibers and climbing nuclei which are source of climbing fibers | ||
| − | ** climbing nuclei are interior olivary nucleus (IO) and vestibular ganglion (VBG) | + | ** '''climbing nuclei''' are interior olivary nucleus (IO) and vestibular ganglion (VBG) |
| − | ** mossy nuclei are more numerous - superior and interior colliculus, spinal cord sensory nuclei, precerebellar reticular formation nuclei, pontine nulei and vestibular nuclei | + | ** '''mossy nuclei''' are more numerous - superior and interior colliculus, spinal cord sensory nuclei, precerebellar reticular formation nuclei, pontine nulei and vestibular nuclei |
* cerebellar cortex has the same implementation for all surface and contains: | * cerebellar cortex has the same implementation for all surface and contains: | ||
| − | ** purkinje cells, targeted by climbing fibers and projecting to output nuclei, containing GABA-ergic neurons | + | ** '''purkinje cells''', targeted by climbing fibers and projecting to output nuclei, containing GABA-ergic neurons |
| − | ** granule cells, targeted by mossy fibers - GLU-ergic neurons which project many-to-many to purkinje cells | + | ** '''granule cells''', targeted by mossy fibers - GLU-ergic neurons which project many-to-many to purkinje cells |
** other cells which build the internal feedback circuit having secondary role for sustained processing | ** other cells which build the internal feedback circuit having secondary role for sustained processing | ||
** purkinje cells define stream modality of cerebellar cortex | ** purkinje cells define stream modality of cerebellar cortex | ||
Revision as of 16:43, 22 November 2015
Biological Life Research
Home -> BiologicalLifeResearch -> BiologicalArchitecture -> BiologicalArchitectureGlobalCircuits
This page covers biological coordination approach of specific circuts and complexes.
Overview
Major biological circuits are:
- cerebellar control
Cerebellar Control
Further explanation is genuine outcome of aHuman research (C) and is not repsesented elsewhere. Please mention origin if copy.
essence of architecture:
- first major feature is that cerebellar complex produces information about which muscle executions are wrong and need to be inhibited
- it stores actual muscle execution patterns associated with certain layer of execution, many-to-many (all muscles to all layer streams)
- it inhibits corresponding layer of execution in streams related to items, not belonging to stored patterns
- conscious execution causes cerebellum to learn patterns, automatic execution leads to using stored patterns
- second major feature is that cerebellum performs coordinate system translation
- vermis - from eyes and head coords to muscle coords
- paravermis - from skin coords to muscle coords
- lateral lobe - from intention coords (frontopontine - M1/S1), absolute coords (parietopontine - IPL/SPL), visual feature coords (occipitopontine - V2) to muscle coords
- flocculonodular lobe - from earth coords to oculomotor muscle coords
layers of execution are:
- subcortical execution of flexors by somatic patterns - paravermal lobe
- cortical execution of flexors by cortical patterns - lateral lobe
- execution of limb extensors by superior colliculus patterns - vermal lobe
- execution of trunk extensors by vestibular patterns - flocculonodular lobe
implementation:
- gross architecture is that there are input nuclei, cerebellar cortex, and output nuclei
- there are climbing fibers and mossy fibers going from input nuclei to cerebellar cortex
- input nuclei are divided into mossy nuclei, which are source of mossy fibers and climbing nuclei which are source of climbing fibers
- climbing nuclei are interior olivary nucleus (IO) and vestibular ganglion (VBG)
- mossy nuclei are more numerous - superior and interior colliculus, spinal cord sensory nuclei, precerebellar reticular formation nuclei, pontine nulei and vestibular nuclei
- cerebellar cortex has the same implementation for all surface and contains:
- purkinje cells, targeted by climbing fibers and projecting to output nuclei, containing GABA-ergic neurons
- granule cells, targeted by mossy fibers - GLU-ergic neurons which project many-to-many to purkinje cells
- other cells which build the internal feedback circuit having secondary role for sustained processing
- purkinje cells define stream modality of cerebellar cortex
- climbing fibers are the same for vermal, paravermal, lateral layers - each IO neuron has projections to 3 purkinje cells, one per each layer
- stream modality of cerebellar cortex for vermal, paravermal, lateral layers is the same and equal to stream modality of IO
- stream modality of IO is defined by nucleus proprius and its cranial equivalent - central cervical nucleus, which convey muscle proprioception from static tension receptor - Golgi tendon organs
- vermal, paravermal, lateral layers can be named muscle cerebellum, while flocculonodular layer is vestibular, because its stream modality is defined by vestibular ganglion
