fluctuations in somatosensory responsiveness and baseline firing
... administered in the second group of experiments (N⫽30 neurons). In the third group, injection manipulations with the empty device on the rat’s head were simulated (N⫽24 neurons). The latter two groups did not statistically differ from each other in any parameter, which made it possible to combine th ...
... administered in the second group of experiments (N⫽30 neurons). In the third group, injection manipulations with the empty device on the rat’s head were simulated (N⫽24 neurons). The latter two groups did not statistically differ from each other in any parameter, which made it possible to combine th ...
A17 - Viktor`s Notes for the Neurosurgery Resident
... more complex mechanisms also exist: 1) temporal pattern coding (e.g. cutaneous cold receptors indicate temperatures below and above 30C by firing with or without bursts, respectively). 2) spatial pattern coding (e.g. three neurons may be required to encode different tastes: all three neurons acti ...
... more complex mechanisms also exist: 1) temporal pattern coding (e.g. cutaneous cold receptors indicate temperatures below and above 30C by firing with or without bursts, respectively). 2) spatial pattern coding (e.g. three neurons may be required to encode different tastes: all three neurons acti ...
Pain
... peripherally at the nociceptor, in the spinal cord, or in supraspinal structures. This modulation can either inhibit or facilitate pain. ...
... peripherally at the nociceptor, in the spinal cord, or in supraspinal structures. This modulation can either inhibit or facilitate pain. ...
Visual Motion Perception using Critical Branching Neural Computation
... synapses when too few descendant spikes occur, and depotentiates when too many occur. Spikes are time-weighted because effects of ancestor spikes on descendant neurons diminish according to their leak rates. Critical branching weight updates increase in likelihood as local branching ratio estimates ...
... synapses when too few descendant spikes occur, and depotentiates when too many occur. Spikes are time-weighted because effects of ancestor spikes on descendant neurons diminish according to their leak rates. Critical branching weight updates increase in likelihood as local branching ratio estimates ...
Control of movement direction - Cognitive Science Research Group
... In the introduction to this chapter, it was mentioned that a long–standing controversy in biological motor control is the question about whether muscle dynamics or movement kinematics are represented in the motor cortex (Kalaska et al., 1992; Johnson et al., 2001; Flash and Sejnowski, 2001). The deb ...
... In the introduction to this chapter, it was mentioned that a long–standing controversy in biological motor control is the question about whether muscle dynamics or movement kinematics are represented in the motor cortex (Kalaska et al., 1992; Johnson et al., 2001; Flash and Sejnowski, 2001). The deb ...
Study guide (Word Document)
... potentially relevant. However, my questions will not be taken word-for-word from the lab manual. If an idea is addressed by a lab manual question, you should be able to access that knowledge even if I phrase the question in a different way! In addition, you may need to tie together information from ...
... potentially relevant. However, my questions will not be taken word-for-word from the lab manual. If an idea is addressed by a lab manual question, you should be able to access that knowledge even if I phrase the question in a different way! In addition, you may need to tie together information from ...
Beyond Spikes: Neural Codes and the Chemical Vocabulary of
... be a firing rate or even a membrane potential. A considerable portion of ANN research, which we will refer to by the more general term connectionism, does not concern itself too much with biological realism, so the “neuron” states do not have to correspond to anything an actual cell has to deal wit ...
... be a firing rate or even a membrane potential. A considerable portion of ANN research, which we will refer to by the more general term connectionism, does not concern itself too much with biological realism, so the “neuron” states do not have to correspond to anything an actual cell has to deal wit ...
OverviewCerebellum
... The cerebellum: Summary From these two examples we might conclude that the cerebellum is important for controlling the timing of motor responses to sensory input: for the VOR it controls the phase of the eye movement with respect to the vestibular stimulation; for the eyeblink it controls the time ...
... The cerebellum: Summary From these two examples we might conclude that the cerebellum is important for controlling the timing of motor responses to sensory input: for the VOR it controls the phase of the eye movement with respect to the vestibular stimulation; for the eyeblink it controls the time ...
Test yourself on lesions in section pictures
... Anterolateral System (ALS) pathway are being eliminated. It is not contralateral because the axons have not yet crossed. The main region affected will be 2 dermatomes below the level of the lesion since ...
... Anterolateral System (ALS) pathway are being eliminated. It is not contralateral because the axons have not yet crossed. The main region affected will be 2 dermatomes below the level of the lesion since ...
Activity Regulates the Incidence of Heteronymous Sensory
... synaptic refinement represents one possible mechanism for the changes in connectivity observed after activity blockade. Our findings therefore reveal that sensory activity does have a limited and selective role in the establishment of patterned monosynaptic sensory-motor connections. INTRODUCTION Th ...
... synaptic refinement represents one possible mechanism for the changes in connectivity observed after activity blockade. Our findings therefore reveal that sensory activity does have a limited and selective role in the establishment of patterned monosynaptic sensory-motor connections. INTRODUCTION Th ...
PDF 2
... basis of anatomical and physiological studies and the striking success of focused surgical interventions, it seems appropriate to view these varied clinical disorders as circuit disorders, resulting from pathologic disturbances in neuronal activity throughout specific cortico-subcortical loops. Arch ...
... basis of anatomical and physiological studies and the striking success of focused surgical interventions, it seems appropriate to view these varied clinical disorders as circuit disorders, resulting from pathologic disturbances in neuronal activity throughout specific cortico-subcortical loops. Arch ...
Epilepsy and Seizure Disorders
... Partial seizures spread into the other hemisphere via the corpus callosum Increase in extracellular K+ and accumulation of Ca2+ in presynaptic terminals also causes recruitment of more neurons Type, number and distribution of voltage- and ligand-gated channels ...
... Partial seizures spread into the other hemisphere via the corpus callosum Increase in extracellular K+ and accumulation of Ca2+ in presynaptic terminals also causes recruitment of more neurons Type, number and distribution of voltage- and ligand-gated channels ...
Modelling the Development of Mirror Neurons for Auditory
... the form of the pipe is variable (Miranda, 2002a). Also, the pipe should contain changeable internal obstructions, and the elastic properties of the walls of the pipe and its internal obstructions can change during sound production. The synthesiser used in our experiments models the vocal system as ...
... the form of the pipe is variable (Miranda, 2002a). Also, the pipe should contain changeable internal obstructions, and the elastic properties of the walls of the pipe and its internal obstructions can change during sound production. The synthesiser used in our experiments models the vocal system as ...
Axons break in animals lacking β-spectrin
... The breaks, growth cones, and branches in the neuronal processes of β-spectrin mutants could be the result of at least two different functions of β-spectrin. First, β-spectrin could act to prevent breaks, and growth cones and branches could be a consequence of breaking. Alternatively, β-spectrin cou ...
... The breaks, growth cones, and branches in the neuronal processes of β-spectrin mutants could be the result of at least two different functions of β-spectrin. First, β-spectrin could act to prevent breaks, and growth cones and branches could be a consequence of breaking. Alternatively, β-spectrin cou ...
Brainstem3_2009
... The spinal nucleus of V is a long upward extension of the posterior horn of the spinal cord It contains a set of neurons resembling the substantia gelatinosa in the spinal cord The tracts entering the spinal nucleus of V are like an upward extension of the tract of ...
... The spinal nucleus of V is a long upward extension of the posterior horn of the spinal cord It contains a set of neurons resembling the substantia gelatinosa in the spinal cord The tracts entering the spinal nucleus of V are like an upward extension of the tract of ...
Circuits and Circuit Disorders of the Basal Ganglia
... basis of anatomical and physiological studies and the striking success of focused surgical interventions, it seems appropriate to view these varied clinical disorders as circuit disorders, resulting from pathologic disturbances in neuronal activity throughout specific cortico-subcortical loops. Arch ...
... basis of anatomical and physiological studies and the striking success of focused surgical interventions, it seems appropriate to view these varied clinical disorders as circuit disorders, resulting from pathologic disturbances in neuronal activity throughout specific cortico-subcortical loops. Arch ...
Why Neurons Cannot be Detectors: Shifting Paradigms from Sherlock Holmes... Elvis Presley? Nancy A. Salay ()
... generally context-free way, e.g. being an atom with one proton in its nucleus. What it is to be an instance of a strongly collective concept, on the other hand, will depend mostly upon the system-level, relational, properties its instances have. For example, the concept worker ant lies closer to the ...
... generally context-free way, e.g. being an atom with one proton in its nucleus. What it is to be an instance of a strongly collective concept, on the other hand, will depend mostly upon the system-level, relational, properties its instances have. For example, the concept worker ant lies closer to the ...
Biology and Behavior
... – Ex: allows us to feel sensations of hot and cold, pain or pressure. – Helps us adjust for posture or balance ...
... – Ex: allows us to feel sensations of hot and cold, pain or pressure. – Helps us adjust for posture or balance ...