Cerebellar system and diseases
... Motor coordination Cerebellum does not initiate movement It contributes to coordination, precision, and accurate timing. It receives input from sensory systems and from other parts of the brain and spinal cord, It integrates these inputs to tune fine motor activity. Because of this fine-tun ...
... Motor coordination Cerebellum does not initiate movement It contributes to coordination, precision, and accurate timing. It receives input from sensory systems and from other parts of the brain and spinal cord, It integrates these inputs to tune fine motor activity. Because of this fine-tun ...
Second lecture test
... D. muscle weakness 4. The pontocerebellum is concerned with A. regulation of muscle tone of limbs B. maintenance of equilibrium C. regulation of muscle tone of trunk D. smooth performance of skilled acts 5. Most of the efferent fibers of the cerebellum are projected to the A. midbrain (superior pedu ...
... D. muscle weakness 4. The pontocerebellum is concerned with A. regulation of muscle tone of limbs B. maintenance of equilibrium C. regulation of muscle tone of trunk D. smooth performance of skilled acts 5. Most of the efferent fibers of the cerebellum are projected to the A. midbrain (superior pedu ...
A real-time model of the cerebellar circuitry underlying classical
... turn, form excitatory synapses onto the Purkinje cells (Pu) and the basket and stellate interneurons (I) in the cerebellar cortex. The IO gives rise to the US conveying CF which also converge onto the Purkinje cells. Due to this convergence of PF and CF onto the Purkinje cells, these neurons are see ...
... turn, form excitatory synapses onto the Purkinje cells (Pu) and the basket and stellate interneurons (I) in the cerebellar cortex. The IO gives rise to the US conveying CF which also converge onto the Purkinje cells. Due to this convergence of PF and CF onto the Purkinje cells, these neurons are see ...
Cerebellum
... Dysarthria and scanning speech Nystagmus Hypotonia Cerebellar ataxia (Romberg test) Dysmetria Diplopia Cognitive dysfunction ...
... Dysarthria and scanning speech Nystagmus Hypotonia Cerebellar ataxia (Romberg test) Dysmetria Diplopia Cognitive dysfunction ...
Dorsal View Ventral View Dorsal View
... Cerebellar Input and Output pathways INPUT-1: Mossy fibers, ascend through the cerebellar white matter and form excitatory synapses on granule cells Granule cells’ axons form parallel fibers, each of these fibers form excitatory synapses with numerous Purkinje Cells. All output from the cerebellar ...
... Cerebellar Input and Output pathways INPUT-1: Mossy fibers, ascend through the cerebellar white matter and form excitatory synapses on granule cells Granule cells’ axons form parallel fibers, each of these fibers form excitatory synapses with numerous Purkinje Cells. All output from the cerebellar ...
State Dependant Synaptic Plasticity in Purkinje Cells
... Department of Neurobiology, Life Science Institute, Hebrew University of Jerusalem, Israel One of the popular theories of cerebellar function assumes that the cerebellum stores memory traces at the parallel fibers (pf) synapse. According to this theory, the climbing fibers (cf) control the learning ...
... Department of Neurobiology, Life Science Institute, Hebrew University of Jerusalem, Israel One of the popular theories of cerebellar function assumes that the cerebellum stores memory traces at the parallel fibers (pf) synapse. According to this theory, the climbing fibers (cf) control the learning ...
BN16 Neural plasticity
... in activity of specific Purkinje cells Climbing fibers may carry error signals corrections parallel fiber influence input specificity only affects active synapses of a parallel fiber ~ ...
... in activity of specific Purkinje cells Climbing fibers may carry error signals corrections parallel fiber influence input specificity only affects active synapses of a parallel fiber ~ ...
Neuronal Organization of the Cerebellar Cortex
... Neuronal Organization of the Cerebellar Cortex Purkinje cell: • Purkinje cells are among the most distinctive neurons in the brain • The dendrites branch very profusely. The dendrites are covered with dendritic spines which receives synaptic input from a parallel fiber. • Their axons travel into th ...
... Neuronal Organization of the Cerebellar Cortex Purkinje cell: • Purkinje cells are among the most distinctive neurons in the brain • The dendrites branch very profusely. The dendrites are covered with dendritic spines which receives synaptic input from a parallel fiber. • Their axons travel into th ...
Document
... activity represents error signals (difference between expected and actual sensory inputs, e.g., the template and the actual drawing). • Experimentally, simultaneous activation of climbing fibers and parallel fibers converging onto the same Purkinje cell can cause longterm depression of parallel fibe ...
... activity represents error signals (difference between expected and actual sensory inputs, e.g., the template and the actual drawing). • Experimentally, simultaneous activation of climbing fibers and parallel fibers converging onto the same Purkinje cell can cause longterm depression of parallel fibe ...
Learning - Classical Conditioning
... The more often the CS is paired with the US, the quicker it will be learned The CS must come before the US Extinction Process of unlearning a learned response because the US has been removed for a period of time. Spontaneous Recovery: sudden reappearance of CR after apparent extinction ...
... The more often the CS is paired with the US, the quicker it will be learned The CS must come before the US Extinction Process of unlearning a learned response because the US has been removed for a period of time. Spontaneous Recovery: sudden reappearance of CR after apparent extinction ...
The Cerebellum Anatomically consists of two hemispheres and
... Cerebellum also helps to control intensity of muscle contraction when the muscle load changes and controls the necessary interplay between agonist & antagonist muscle groups. The cerebellum is recognized as the “silent area of the brain”, because electrical excitation doesn’t cause any sensation an ...
... Cerebellum also helps to control intensity of muscle contraction when the muscle load changes and controls the necessary interplay between agonist & antagonist muscle groups. The cerebellum is recognized as the “silent area of the brain”, because electrical excitation doesn’t cause any sensation an ...
Cerebellum
... Cerebellar Cortex: the surface gray matter of the cerebellum. 3 layers: 1. Molecular Layer- most superficial, consisting of axons of granule cells (parallel fibers) and dendrites of PCs 2. Purkinje Cell Layer- middle layer consisting of a single layer of large neuronal cell bodies (Purkinje cells) ...
... Cerebellar Cortex: the surface gray matter of the cerebellum. 3 layers: 1. Molecular Layer- most superficial, consisting of axons of granule cells (parallel fibers) and dendrites of PCs 2. Purkinje Cell Layer- middle layer consisting of a single layer of large neuronal cell bodies (Purkinje cells) ...
chapter 12 - cerebellum
... University of South Carolina Norman J. Arnold School of Public Health Department of Communication Sciences and Disorders University of South Carolina ...
... University of South Carolina Norman J. Arnold School of Public Health Department of Communication Sciences and Disorders University of South Carolina ...
Chapter 12
... University of South Carolina Norman J. Arnold School of Public Health Department of Communication Sciences and Disorders University of South Carolina ...
... University of South Carolina Norman J. Arnold School of Public Health Department of Communication Sciences and Disorders University of South Carolina ...
Cerebellum - DENTISTRY 2012
... - inputs from sc - controls posture and movement of trunk and limbs. - comprises the vermis + intermediate hemisphere of the cerebellar cortex, as well as the fastigial and interposed nuclei. - projects through fastigial and interposed nuclei. - has a somatotropic organization. - it receives major i ...
... - inputs from sc - controls posture and movement of trunk and limbs. - comprises the vermis + intermediate hemisphere of the cerebellar cortex, as well as the fastigial and interposed nuclei. - projects through fastigial and interposed nuclei. - has a somatotropic organization. - it receives major i ...
Learning at the Cellular Level
... learning can occur at the cellular level? How this be modeled and simulated quickly using the Izhikevich model? ...
... learning can occur at the cellular level? How this be modeled and simulated quickly using the Izhikevich model? ...
CEREBELLUM
... an aversive air puff to the eye. (b) Early in training, the air puff causes the animal to blink. Late in training, the animal blinks in response to the tone, thus reducing the impact of the air puff. (c) Lesions of the deep cerebellar nuclei abolish the learned response. The fact that the aninal con ...
... an aversive air puff to the eye. (b) Early in training, the air puff causes the animal to blink. Late in training, the animal blinks in response to the tone, thus reducing the impact of the air puff. (c) Lesions of the deep cerebellar nuclei abolish the learned response. The fact that the aninal con ...
Long-term depression
... in activity of specific Purkinje cells Climbing fibers may carry error signals corrections ---> parallel fiber influence input specificity only affects active synapses of a parallel fiber ~ ...
... in activity of specific Purkinje cells Climbing fibers may carry error signals corrections ---> parallel fiber influence input specificity only affects active synapses of a parallel fiber ~ ...
LEARNING
... • A relatively permanent change in behavior resulting from experience • Learning and performance -Performance is an indirect measure of learning but is influenced by other factors such as motivation and fatigue ...
... • A relatively permanent change in behavior resulting from experience • Learning and performance -Performance is an indirect measure of learning but is influenced by other factors such as motivation and fatigue ...
The cerebellum chip: an analog VLSI implementation of a
... adaptation of a pause in PU spiking following the CS. In summary, in the model the expression of a CR is triggered by DN rebound excitation upon release from PU inhibition. The precise timing of a CR is dependent on the duration of an acquired pause in PU spiking following a CS. The PU response is r ...
... adaptation of a pause in PU spiking following the CS. In summary, in the model the expression of a CR is triggered by DN rebound excitation upon release from PU inhibition. The precise timing of a CR is dependent on the duration of an acquired pause in PU spiking following a CS. The PU response is r ...
A synaptic memory trace for cortical receptive field plasticity
... Neural networks of the cerebral cortex continually change throughout life, allowing us to learn from our sensations of the world. While the developing cortex is readily altered by sensory experience, older brains are less plastic. Adult cortical plasticity seems to require more widespread coordinati ...
... Neural networks of the cerebral cortex continually change throughout life, allowing us to learn from our sensations of the world. While the developing cortex is readily altered by sensory experience, older brains are less plastic. Adult cortical plasticity seems to require more widespread coordinati ...
Learning
... we perceive and the appropriate responses. • The study of learning is the study of how those associations are created and changed. ...
... we perceive and the appropriate responses. • The study of learning is the study of how those associations are created and changed. ...
