Cognitive Psychology
... (strength), so they are either on or off. • An action potential is only generated if the depolarization of the cell membrane crosses a threshold. • We determine how excited a neuron is by its firing rate - how many action potentials per second it generates. ...
... (strength), so they are either on or off. • An action potential is only generated if the depolarization of the cell membrane crosses a threshold. • We determine how excited a neuron is by its firing rate - how many action potentials per second it generates. ...
File
... 2. The cerebrum is divided into _two_____ hemispheres, bridged together by a bundle of fibers called the _corpus callosum___. 3. Covering the outermost layer of the cerebrum is the _cerebral cortex_. 4. What are the functions of the four lobes? Answer: Frontal- movement, higher thinking, emotional r ...
... 2. The cerebrum is divided into _two_____ hemispheres, bridged together by a bundle of fibers called the _corpus callosum___. 3. Covering the outermost layer of the cerebrum is the _cerebral cortex_. 4. What are the functions of the four lobes? Answer: Frontal- movement, higher thinking, emotional r ...
Neurotransmitter proteins
... 1) What is the function of the nervous system? 2) List the 3 main parts and describe the purpose of the 3 main parts of a neuron. 3) Describe the internal and external environment of a neuron in resting potential. 4) What is a synapse and why is it a problem for neurons? 5) What are the roles of the ...
... 1) What is the function of the nervous system? 2) List the 3 main parts and describe the purpose of the 3 main parts of a neuron. 3) Describe the internal and external environment of a neuron in resting potential. 4) What is a synapse and why is it a problem for neurons? 5) What are the roles of the ...
axon - the long extension of a neuron that carries nerve impulses
... negative. If you could put a microscopic meter on each side of the membrane, you could measure the potential energy (about -70 millivolts), like a tiny battery. When the neuron is stimulated, sodium ions can enter the cell. The potential energy (voltage) across the membrane drops. Even though the ce ...
... negative. If you could put a microscopic meter on each side of the membrane, you could measure the potential energy (about -70 millivolts), like a tiny battery. When the neuron is stimulated, sodium ions can enter the cell. The potential energy (voltage) across the membrane drops. Even though the ce ...
Jeopardy Bio Basis of Human Behavior
... neuron; Sodium-Potassium pump replaces ions in their “correct” spot ...
... neuron; Sodium-Potassium pump replaces ions in their “correct” spot ...
2.2 Electrical Communication Study Guide by Hisrich
... 2.2.i How can biomedical professionals help treat, cure and improve the quality of life of those suffering from ...
... 2.2.i How can biomedical professionals help treat, cure and improve the quality of life of those suffering from ...
Chapter 48 Reading Guide and Key Terms
... How does an action potential differ from a graded potential? ...
... How does an action potential differ from a graded potential? ...
ntro to Nervous system study guide
... Nervous system Quiz Review 1. What is the function of the nervous system? What other system has this same function? What is the difference between them? ...
... Nervous system Quiz Review 1. What is the function of the nervous system? What other system has this same function? What is the difference between them? ...
Slide 1 - AccessPhysiotherapy
... dendrites and also on its cell body, the soma. The soma of this type of cell integrates the electrical information and also provides metabolic support for the cell as a whole. The place where the axon comes out of the soma is called the axon hillock, and this is where the information is encoded into ...
... dendrites and also on its cell body, the soma. The soma of this type of cell integrates the electrical information and also provides metabolic support for the cell as a whole. The place where the axon comes out of the soma is called the axon hillock, and this is where the information is encoded into ...
PPT
... Different people may define it differently, we will leave this to the reader, students, to define it as their initial understanding of the subject is. We later go back to it and see if can define it based on what we have learned in the course. This is one of the most common definition for NN: A NN i ...
... Different people may define it differently, we will leave this to the reader, students, to define it as their initial understanding of the subject is. We later go back to it and see if can define it based on what we have learned in the course. This is one of the most common definition for NN: A NN i ...
Impact of Correlated inputs on Simple Neural Models
... correlated but without correlation) Balanced non-specific uncorrelated spike trains (typical of cortical neurons) ...
... correlated but without correlation) Balanced non-specific uncorrelated spike trains (typical of cortical neurons) ...
Neurones & the Action Potential
... that sodium (Na+) goes in, depolarizing the membrane •The adjacent section of membrane allows Na+ to go in, depolarizing it ...
... that sodium (Na+) goes in, depolarizing the membrane •The adjacent section of membrane allows Na+ to go in, depolarizing it ...
ADAM Nervous System Ion Channels Use this program only if you
... Use this program only if you need to review the differences between active and passive cell channels and voltage-gated and chemically-gated channels. Membrane Potential 1. What causes the outside surface of the cell membrane to be more positive? 2. The resting membrane potential in a neuron results ...
... Use this program only if you need to review the differences between active and passive cell channels and voltage-gated and chemically-gated channels. Membrane Potential 1. What causes the outside surface of the cell membrane to be more positive? 2. The resting membrane potential in a neuron results ...
What is the structure of the neuron? (continued)
... than neurons. • Surround and support neurons, control the supply of nutrients to neurons, assist in the exchange of chemicals between neurons, destroy and remove damaged neurons. ...
... than neurons. • Surround and support neurons, control the supply of nutrients to neurons, assist in the exchange of chemicals between neurons, destroy and remove damaged neurons. ...
Learning Objectives
... Know the main structures of neurons and the structural differences among neurons. ...
... Know the main structures of neurons and the structural differences among neurons. ...
Brain and Behaviour
... reach the dendrite must reach a certain level of intensity or THRESHOLD – this is an all of nothing response to neurons either reaching the threshold or they don’t . If the Threshold is reached then the neuron transmits an electrical impulse down the axon and this impulse that runs down the axon i ...
... reach the dendrite must reach a certain level of intensity or THRESHOLD – this is an all of nothing response to neurons either reaching the threshold or they don’t . If the Threshold is reached then the neuron transmits an electrical impulse down the axon and this impulse that runs down the axon i ...
Ch 48: Nervous System – part 1
... functional unit of the nervous system transmit signals from one location to another made up of: many axons are enclosed by an insulating layer called the ...
... functional unit of the nervous system transmit signals from one location to another made up of: many axons are enclosed by an insulating layer called the ...
Neuron Summary - MsHughesPsychology
... 1. Dendrite – a specialised, short, thin and widely branching fibre that is specialised to detect and receive incoming neural information (neural impulses) 2. Soma – cell body, the section that determines whether the neuron will be activated and thus transmit (pass on) the neural stimulation to othe ...
... 1. Dendrite – a specialised, short, thin and widely branching fibre that is specialised to detect and receive incoming neural information (neural impulses) 2. Soma – cell body, the section that determines whether the neuron will be activated and thus transmit (pass on) the neural stimulation to othe ...
Epilepsy & Membrane Potentials
... Sensory Physiology • Perception of sensation involves 1) External physical signals 2) Converted by physiological process 3) To neural signals (graded & action potentials) ...
... Sensory Physiology • Perception of sensation involves 1) External physical signals 2) Converted by physiological process 3) To neural signals (graded & action potentials) ...
Slide 1
... Advantages: Spikes of biological neurons are well localized in time and not very frequent. Thus low number of events (sparse coding). Disadvantages: We need a mathematical expression (or method) to calculate the value of each state variable after an arbitrary time (the time of the next event). ...
... Advantages: Spikes of biological neurons are well localized in time and not very frequent. Thus low number of events (sparse coding). Disadvantages: We need a mathematical expression (or method) to calculate the value of each state variable after an arbitrary time (the time of the next event). ...
The Nervous System
... • Axon: long extension from the cell body, transmits signals to other neurons, ends in an axon terminal. Many axons are insulated with myelin which improves the efficiency of ...
... • Axon: long extension from the cell body, transmits signals to other neurons, ends in an axon terminal. Many axons are insulated with myelin which improves the efficiency of ...
