Synaptic plasticity: taming the beast
... small differences between pre- and postsynaptic spike times, and no plasticity is induced if this difference grows too large. In some cases, the sign of the time difference (that is, whether the presynaptic spike precedes or follows the postsynaptic spike) determines whether the protocol induces LTP ...
... small differences between pre- and postsynaptic spike times, and no plasticity is induced if this difference grows too large. In some cases, the sign of the time difference (that is, whether the presynaptic spike precedes or follows the postsynaptic spike) determines whether the protocol induces LTP ...
Eagleman Ch 3. Neurons and Synapses
... In temporal summation, PSPs arriving at the soma at close to the same time are combined. In spatial summation, PSPs arriving at different locations on the soma are combined. ...
... In temporal summation, PSPs arriving at the soma at close to the same time are combined. In spatial summation, PSPs arriving at different locations on the soma are combined. ...
KC Kajander GJ Giesler, Jr. KJ Gingrich JH Byrne YS Chan J
... S. Warren, H. A. Hamalainen, and E. P. Gardner, “Objective classification of motion- and directionsensitive neurons in primary somatosensory cortex of awake monkeys.” It was incorrectly stated that Orban and co-workers (J. iVeurophysioZ. 45: 1059-1073, 198 1) attributed direction selectivity to cort ...
... S. Warren, H. A. Hamalainen, and E. P. Gardner, “Objective classification of motion- and directionsensitive neurons in primary somatosensory cortex of awake monkeys.” It was incorrectly stated that Orban and co-workers (J. iVeurophysioZ. 45: 1059-1073, 198 1) attributed direction selectivity to cort ...
Reuptake, or re-uptake, is the reabsorption of a neurotransmitter by
... (5) The posterior hippocampus appears most active when encoding or retrieving memories? Page 347. Encoding of information into memory. (6) What is the most common form of clinical amnesia? Page 349. Korsakoff’s syndrome. (7) Where are the mammillary bodies located? Page 44, 568. Found at the back (p ...
... (5) The posterior hippocampus appears most active when encoding or retrieving memories? Page 347. Encoding of information into memory. (6) What is the most common form of clinical amnesia? Page 349. Korsakoff’s syndrome. (7) Where are the mammillary bodies located? Page 44, 568. Found at the back (p ...
Homework 3 - Stethographics, Inc.
... The afferent neuron (also known as affector neuron) The efferent neuron (also known as effector neuron) The stimulus The response What types of electrical phenomena would you expect to be able to record along the reflex arc? ...
... The afferent neuron (also known as affector neuron) The efferent neuron (also known as effector neuron) The stimulus The response What types of electrical phenomena would you expect to be able to record along the reflex arc? ...
Saladin 5e Extended Outline
... 4. Neuron structure varies, and they are classified according to the number of processes extending from the stroma. (Fig. 12.5) a. Multipolar neurons are those with one axon and multiple dendrites; they are the most common type. b. Bipolar neurons have one axon and one dendrite; examples include olf ...
... 4. Neuron structure varies, and they are classified according to the number of processes extending from the stroma. (Fig. 12.5) a. Multipolar neurons are those with one axon and multiple dendrites; they are the most common type. b. Bipolar neurons have one axon and one dendrite; examples include olf ...
Associative Learning and Long-Term Potentiation
... ollowing the seminal proposal of Hebb1 and many others, acquired learning abilities are assumed to be stored in the form of functional and/or structural changes in synaptic efficiency. Although there are many excellent studies in vitro of the electrophysiological processes and molecular events suppo ...
... ollowing the seminal proposal of Hebb1 and many others, acquired learning abilities are assumed to be stored in the form of functional and/or structural changes in synaptic efficiency. Although there are many excellent studies in vitro of the electrophysiological processes and molecular events suppo ...
Communication between Neurons
... The neurotransmitter diffuses across the synaptic cleft until it binds with a specific receptor on the post-synaptic membrane. There are two types of receptors a) Ion channel linked receptors and b) G-Protein linked receptors. Once the neurotransmitter binds to an ion-channel receptor, the ion chann ...
... The neurotransmitter diffuses across the synaptic cleft until it binds with a specific receptor on the post-synaptic membrane. There are two types of receptors a) Ion channel linked receptors and b) G-Protein linked receptors. Once the neurotransmitter binds to an ion-channel receptor, the ion chann ...
Slayt 1 - Department of Information Technologies
... The dendrites are tree-like receptive networks of nerve fibers that carry electrical signals into the cell body The cell body effectively sums and thresholds these incoming signals. The axon is a single long fiber that carries the signal from the cell body out to other neurons. The point of contact ...
... The dendrites are tree-like receptive networks of nerve fibers that carry electrical signals into the cell body The cell body effectively sums and thresholds these incoming signals. The axon is a single long fiber that carries the signal from the cell body out to other neurons. The point of contact ...
chapter38
... The action potential is a “all or none” response to a stimulus. A stimulus has to be of enough strength to cause an action potential to occur. The critical point at which a stimulus causes an action potential is called the threshold. ...
... The action potential is a “all or none” response to a stimulus. A stimulus has to be of enough strength to cause an action potential to occur. The critical point at which a stimulus causes an action potential is called the threshold. ...
RAPID REVIEW The nervous system is made up of a complex
... neurotransmitter and has been linked with sleep, mood, and appetite. Low levels of the neurotransmitter dopamine have been found to cause Parkinson’s disease and increased levels of dopamine have been linked to the psychological disorder known as schizophrenia. Endorphin is a special neurotransmitte ...
... neurotransmitter and has been linked with sleep, mood, and appetite. Low levels of the neurotransmitter dopamine have been found to cause Parkinson’s disease and increased levels of dopamine have been linked to the psychological disorder known as schizophrenia. Endorphin is a special neurotransmitte ...
Chapter 43
... • Respond to hormones and neurotransmitters • Action potentials – transient disruptions, signals that propagate down the neuron • Voltage-gated channels (Na+ channel and K+ channel) • Action potential “jumps” from node of Ranvier to next node ...
... • Respond to hormones and neurotransmitters • Action potentials – transient disruptions, signals that propagate down the neuron • Voltage-gated channels (Na+ channel and K+ channel) • Action potential “jumps” from node of Ranvier to next node ...
MS Word Version
... which neurotransmitter is involved, and the specific receptor found on that cell. ...
... which neurotransmitter is involved, and the specific receptor found on that cell. ...
Mechanism of Action Overview Sodium channel blockers
... 1. Resting – Channel allows passage of sodium into the cell. 2. Open – Channel allows increased flux of sodium into the cell. 3. Refractory (inactivation) – Channel does not allow passage of sodium into the cell. During the action potential these channels exist in the active state and then undergo f ...
... 1. Resting – Channel allows passage of sodium into the cell. 2. Open – Channel allows increased flux of sodium into the cell. 3. Refractory (inactivation) – Channel does not allow passage of sodium into the cell. During the action potential these channels exist in the active state and then undergo f ...
AI_Connectionism_Excel
... – Neurons fire in an all-or-none fashion – Neurons may either increase or decrease another neuron’s chances of firing ...
... – Neurons fire in an all-or-none fashion – Neurons may either increase or decrease another neuron’s chances of firing ...
nervous system
... among other things, the feel good neurotransmitter and helps to regulate body temp. Our brain cells are constantly trying to bring some amount of serotonin back into the cells and out of the synapse using serotonin reuptake transporters. Ecstasy essentially takes these upkeep transporters and revers ...
... among other things, the feel good neurotransmitter and helps to regulate body temp. Our brain cells are constantly trying to bring some amount of serotonin back into the cells and out of the synapse using serotonin reuptake transporters. Ecstasy essentially takes these upkeep transporters and revers ...
Feedback — Exam
... What is the time-scale for long term potentiation (LTP) and depression (LTD)? Tens of milliseconds Seconds Minutes Hours ...
... What is the time-scale for long term potentiation (LTP) and depression (LTD)? Tens of milliseconds Seconds Minutes Hours ...
BIOLOGY & BEHAVIOR
... because it is the basis of all behavior The NEURON is the fundamental unit of the nervous system ...
... because it is the basis of all behavior The NEURON is the fundamental unit of the nervous system ...
Aim of Research
... membrane to release neurotransmitters as well as endocytosis and recycling of the vesicles. Whereas the essential proteins governing the SV cycle have been identified in the last decades, we still have only little knowledge about their exact operation and sequence in which they interact to carry ou ...
... membrane to release neurotransmitters as well as endocytosis and recycling of the vesicles. Whereas the essential proteins governing the SV cycle have been identified in the last decades, we still have only little knowledge about their exact operation and sequence in which they interact to carry ou ...
The Nervous System - Science with Mr. Enns
... It is the most complex thing in the universe. It contains roughly 100 billion neurons. Each neuron connects with 100,000 others. The brain uses 1/3 of the food we eat each day. The fastest supercomputer in the world is nothing compared to the average brain. ...
... It is the most complex thing in the universe. It contains roughly 100 billion neurons. Each neuron connects with 100,000 others. The brain uses 1/3 of the food we eat each day. The fastest supercomputer in the world is nothing compared to the average brain. ...
Psy101 Brain.lst
... Explain the anatomy of a neuron including: dendrite, soma, axon, myelin sheath, axon terminal, terminal buttons/synaptic vesicles and synapse. Give an example of how a message travels through the neuron. ...
... Explain the anatomy of a neuron including: dendrite, soma, axon, myelin sheath, axon terminal, terminal buttons/synaptic vesicles and synapse. Give an example of how a message travels through the neuron. ...
T/F
... T/F The human brain is larger than that of any other animal. T/F A single cell can stretch all the way from your spine to your toe. T/F Messages travel in the brain by means of electricity. T/F A brain cell can send out hundreds of messages each second, and manage to catch some rest in between. T/F ...
... T/F The human brain is larger than that of any other animal. T/F A single cell can stretch all the way from your spine to your toe. T/F Messages travel in the brain by means of electricity. T/F A brain cell can send out hundreds of messages each second, and manage to catch some rest in between. T/F ...
Physio study guide unit 2
... of event would this trigger on a post-synaptic cell? What are Ionotropic receptors? That is, how do they work? Do we ONLY have ionotropic receptors that allow sodium through the channel? Which example of an ionotropic receptor are you responsible for knowing? What ion does it allow through? What are ...
... of event would this trigger on a post-synaptic cell? What are Ionotropic receptors? That is, how do they work? Do we ONLY have ionotropic receptors that allow sodium through the channel? Which example of an ionotropic receptor are you responsible for knowing? What ion does it allow through? What are ...
Answer Key - Psychological Associates of South Florida
... C) unprovable assumption about the unobservable processes that underlie psychological functioning. D) observable relationship between specific independent and dependent variables. ...
... C) unprovable assumption about the unobservable processes that underlie psychological functioning. D) observable relationship between specific independent and dependent variables. ...
Nonsynaptic plasticity
Nonsynaptic plasticity is a form of neuroplasticity that involves modification of ion channel function in the axon, dendrites, and cell body that results in specific changes in the integration of excitatory postsynaptic potentials (EPSPs) and inhibitory postsynaptic potentials (IPSPs). Nonsynaptic plasticity is a modification of the intrinsic excitability of the neuron. It interacts with synaptic plasticity, but it is considered a separate entity from synaptic plasticity. Intrinsic modification of the electrical properties of neurons plays a role in many aspects of plasticity from homeostatic plasticity to learning and memory itself. Nonsynaptic plasticity affects synaptic integration, subthreshold propagation, spike generation, and other fundamental mechanisms of neurons at the cellular level. These individual neuronal alterations can result in changes in higher brain function, especially learning and memory. However, as an emerging field in neuroscience, much of the knowledge about nonsynaptic plasticity is uncertain and still requires further investigation to better define its role in brain function and behavior.