Spike sorting: the overlapping spikes challenge
... with rising number of signal channels especially under conditions with high noise amplitudes and a high number of neurons. Due to the fact that neurons produce spikes with stereotypic shapes the waveforms can be quite similar. The use of multichannel electrodes leads to a greater dissimilarity due t ...
... with rising number of signal channels especially under conditions with high noise amplitudes and a high number of neurons. Due to the fact that neurons produce spikes with stereotypic shapes the waveforms can be quite similar. The use of multichannel electrodes leads to a greater dissimilarity due t ...
refractory period
... The experiment on the next slide shows the singlechannel currents recorded from 7 individual Na+ channels in response to a depolarizing voltage step. Notice how random the behavior is - the different channels open at different times, stay open for different times, and may flicker closed a time or tw ...
... The experiment on the next slide shows the singlechannel currents recorded from 7 individual Na+ channels in response to a depolarizing voltage step. Notice how random the behavior is - the different channels open at different times, stay open for different times, and may flicker closed a time or tw ...
NERVOUS SYSTEM CNS-Central Nervous System PNS
... 13. What is the protective covering of the brain and spinal cord? What 3 layers make this covering up? 14. What is the brainstem responsible for and what are its 3 parts? 15. What is the 2nd largest part of the brain and what is it responsible for? 16. What is the largest part of the brain and what ...
... 13. What is the protective covering of the brain and spinal cord? What 3 layers make this covering up? 14. What is the brainstem responsible for and what are its 3 parts? 15. What is the 2nd largest part of the brain and what is it responsible for? 16. What is the largest part of the brain and what ...
Controlling Robots with the Mind
... There were caveats, however. Georgopoulos had recorded the activity of single neurons one at a time and from only one motor area. This approach left unproved the underlying hypothesis that some kind of coding scheme emerges from the simultaneous activity of many neurons distributed across multiple c ...
... There were caveats, however. Georgopoulos had recorded the activity of single neurons one at a time and from only one motor area. This approach left unproved the underlying hypothesis that some kind of coding scheme emerges from the simultaneous activity of many neurons distributed across multiple c ...
Peripheral nervous system
... Meninges & cerebrospinal fluid Peripheral nervous system Components of PNS Functional classification of PNS Neurons Structure of neurons Classification of neurons (Structural & functional) Action potential & its steps ...
... Meninges & cerebrospinal fluid Peripheral nervous system Components of PNS Functional classification of PNS Neurons Structure of neurons Classification of neurons (Structural & functional) Action potential & its steps ...
Interbrain and Brainstem
... Cerebral Cortex - The outermost layer of the brain containing gray matter. Responsible for many "higherorder" functions like language and information processing. ...
... Cerebral Cortex - The outermost layer of the brain containing gray matter. Responsible for many "higherorder" functions like language and information processing. ...
Step Up To: Psychology
... learn sign language. • D) Enriched-environment rats demonstrated neurogenesis, more synapses and greater memory ability. ...
... learn sign language. • D) Enriched-environment rats demonstrated neurogenesis, more synapses and greater memory ability. ...
the neuron cheat sheet
... The brain and spinal cord are made up of many cells, including neurons and glial cells. Neurons are cells that send and receive electro-chemical signals to and from the brain and nervous system. There are about 100 billion neurons in the brain. There are many more glial cells; they provide support f ...
... The brain and spinal cord are made up of many cells, including neurons and glial cells. Neurons are cells that send and receive electro-chemical signals to and from the brain and nervous system. There are about 100 billion neurons in the brain. There are many more glial cells; they provide support f ...
Neurophysiology
... parasympathetic impulses out via oculomotor nerve (III) – circular muscles of eye constrict • Pupil observation important when considering head injury ...
... parasympathetic impulses out via oculomotor nerve (III) – circular muscles of eye constrict • Pupil observation important when considering head injury ...
The analysis of visual motion: A comparison of neuronal and
... Aim What is the relationship between psychophysical sensitivity, as measured by behavioural tasks, and the firing rate of individual cortical neurons? The aim of this paper was to investigate if such a relationship can be measured, and to further understand the nature of the transformations between ...
... Aim What is the relationship between psychophysical sensitivity, as measured by behavioural tasks, and the firing rate of individual cortical neurons? The aim of this paper was to investigate if such a relationship can be measured, and to further understand the nature of the transformations between ...
Electrical Communication #2
... It is essentially independent from the soma, even though it gets its material from there. ...
... It is essentially independent from the soma, even though it gets its material from there. ...
Neurophysiology
... = Distal VIIIth nerve = Medial VIIIth nerve = Cochlear Nucleus = Superior Olivary Complex = Lateral Lemniscus & Inferior Colliculus ...
... = Distal VIIIth nerve = Medial VIIIth nerve = Cochlear Nucleus = Superior Olivary Complex = Lateral Lemniscus & Inferior Colliculus ...
Exercise 17
... Neurofibrils: cytoskeletal elements that support and transport inside the cell Nissl bodies: elaborate type of rough ER; involved in the metabolic activity of the the cell Dendrites: are receptive regions that bear receptors for neurotransmitters released by other neurons Axons: are nerve impulse ge ...
... Neurofibrils: cytoskeletal elements that support and transport inside the cell Nissl bodies: elaborate type of rough ER; involved in the metabolic activity of the the cell Dendrites: are receptive regions that bear receptors for neurotransmitters released by other neurons Axons: are nerve impulse ge ...
The Nervous System
... Relays impulses from sensory neurons to motor neurons. “The Middle Man” There are more of these than sensory and motor neurons. ...
... Relays impulses from sensory neurons to motor neurons. “The Middle Man” There are more of these than sensory and motor neurons. ...
Nervous Tissue
... These cells conduct action potentials from one neuron to another within the CNS: a. sensory (afferent) neurons b. motor (efferent) neurons ...
... These cells conduct action potentials from one neuron to another within the CNS: a. sensory (afferent) neurons b. motor (efferent) neurons ...
Bite Me!
... and a muscle cell • Neurotransmitters from the axon send signals to the muscle • Synapses can form between two neurons, or between a neuron and another type of cell ...
... and a muscle cell • Neurotransmitters from the axon send signals to the muscle • Synapses can form between two neurons, or between a neuron and another type of cell ...
Chapter 13 - Nervous Tissue
... specialized to detect stimuli and transmit the information to CNS. They begin in any organ in the body, but end in the brain or spinal cord. ...
... specialized to detect stimuli and transmit the information to CNS. They begin in any organ in the body, but end in the brain or spinal cord. ...
IV. Conduction Across Synapses
... neurotransmitter split by a specific enzyme fragments re-absorbed by presynaptic neuron used to synthesize more neurotransmitter ex: acetylcholine (Ach) split by enzyme acetylcholinesterase (AChE) ...
... neurotransmitter split by a specific enzyme fragments re-absorbed by presynaptic neuron used to synthesize more neurotransmitter ex: acetylcholine (Ach) split by enzyme acetylcholinesterase (AChE) ...
CHAPTER 11 Nervous Tissue - Austin Community College
... specialized to detect stimuli and transmit the information to CNS. They begin in any organ in the body, but end in the brain or spinal cord. ...
... specialized to detect stimuli and transmit the information to CNS. They begin in any organ in the body, but end in the brain or spinal cord. ...
Information Integration and Decision Making in Humans and
... The variables x and y are unconditionally independent in one of the graphs above. In the other graph, they are conditionally independent given the ‘category’ they are chosen from, where this is represented by the symbol used on the data point, but they are not unconditionally independent. ...
... The variables x and y are unconditionally independent in one of the graphs above. In the other graph, they are conditionally independent given the ‘category’ they are chosen from, where this is represented by the symbol used on the data point, but they are not unconditionally independent. ...
Multiple sites of spike initiation in a single dendritic
... Purkinje ceils of alligator cerebellumS, 9, pyramidal cells of cat hippocampus, crab eye stalk motor neuronslZ, 1~, and crayfish fast flexor m o t o r neurons15), the dendritic spikes contribute only subthreshold excitation to a main axonal spike initiating zone. Such dendritic spikes, which do not ...
... Purkinje ceils of alligator cerebellumS, 9, pyramidal cells of cat hippocampus, crab eye stalk motor neuronslZ, 1~, and crayfish fast flexor m o t o r neurons15), the dendritic spikes contribute only subthreshold excitation to a main axonal spike initiating zone. Such dendritic spikes, which do not ...
Biology 2401 Anatomy and Physiology I notes
... Schwann cells - in peripheral ns only; form myelin sheath and neurolemma around axons of neurons outside of brain and spinal cord. (more on myelin sheaths later) *List five types of glial cells and tell what the function is of each. *Which glial cells are only in the central nervous system (brain a ...
... Schwann cells - in peripheral ns only; form myelin sheath and neurolemma around axons of neurons outside of brain and spinal cord. (more on myelin sheaths later) *List five types of glial cells and tell what the function is of each. *Which glial cells are only in the central nervous system (brain a ...
Slide 1
... spontaneous activations corresponding to one stimulus, then another, and so on, may be related to the stream of thought and primary consciousness. ...
... spontaneous activations corresponding to one stimulus, then another, and so on, may be related to the stream of thought and primary consciousness. ...
The Nervous System
... activities such as heart rate and breathing – Pons and midbrain act as pathways connecting various part of the brain with each other. ...
... activities such as heart rate and breathing – Pons and midbrain act as pathways connecting various part of the brain with each other. ...