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feature analyzers in the brain
feature analyzers in the brain

...  T5(2) neurons also showed invariance with  contrast  velocity  distance  T5(2) are candidate prey-recognition neurons  ~ same configural detection rules as behavior  good eg of neural correlate of behavior ...
InterimSummary The Nature of Learning
InterimSummary The Nature of Learning

... important one. It involves an association between two stimuli. A stimulus that previously had little effect on behavior becomes able to evoke a reflexive, species-typical behavior. For example, a defensive eyeblink response can be conditioned to a tone. If we direct a brief puff of air toward a rabb ...
Biology - Chpt 14- The Nervous System
Biology - Chpt 14- The Nervous System

... Where two neurons meet, there is a tiny gap called a synapse. Signals cross this gap using chemicals. One neuron releases the chemical into the gap. The chemical diffuses across the gap and makes the next neuron transmit an electrical signal. ...
2011 Schedule
2011 Schedule

... Morning: 3. Michael Kavanaugh Study of transport proteins by electrophysiology 4. David Gadsby Primary transporters: the sodium pump Afternoon: De Felice and Naftalin Tutorial #1 and Poster Session Evening: 5. Baruch Kanner Structure and function of neurotransmitter transporters 6. Robert Tampe ABC ...
The Nervous System - Blackwell Publishing
The Nervous System - Blackwell Publishing

... neurons. Their interactive nature is precisely what is so special about them. Each neuron’s activity is controlled not just by its own internal condition, but by the myriad inputs it receives from other neurons, from sensory detection apparatuses (for example, those detectors located in the skin), o ...
FREE Sample Here
FREE Sample Here

... more frequent impulses. It is especially important to point out the significance of the fact that the synapse is not a hard-wired connection between neurons. This means that neurons can be more flexible, but it also means that more can “go wrong” in the nervous system, such as if there is too much n ...
FREE Sample Here
FREE Sample Here

... more frequent impulses. It is especially important to point out the significance of the fact that the synapse is not a hard-wired connection between neurons. This means that neurons can be more flexible, but it also means that more can “go wrong” in the nervous system, such as if there is too much n ...
Lecture VIII. Spinal Cord - Natural Sciences Learning Center
Lecture VIII. Spinal Cord - Natural Sciences Learning Center

... With respect to neurons: • Threshold (the magnitude of a stimulus sufficient to depolarize the sensory neuron) • Adequate Stimulus (the form of energy to which a particular sensory cell is most sensitive - light, touch, sound, etc.) • Law of specific nerve energies (depolarization of neurons in a p ...
The Study of the Nervous System in Psychology
The Study of the Nervous System in Psychology

... more frequent impulses. It is especially important to point out the significance of the fact that the synapse is not a hard-wired connection between neurons. This means that neurons can be more flexible, but it also means that more can “go wrong” in the nervous system, such as if there is too much n ...
chapter 11-nerve tissue
chapter 11-nerve tissue

... 1. This charge difference creates a small voltage along the neuron’s membrane. 2. Normal RMP is typically about –70mV. The negative sign indicates that the inside of the neuron is more negative than the outside of the neuron. a. Neurons create impulses by changing this RMP. b. What leads to the Form ...
Sleep Spindles as Facilitators of Memory Formation and Learning
Sleep Spindles as Facilitators of Memory Formation and Learning

... Learning is thought to result from modifications of synaptic connections. In particular, long-term potentiation (LTP), a long-lasting enhancement of synaptic strength between excitatory neurons, has been widely investigated and is considered to be a key process in memory formation [33]. However, the ...
Neurons, Hormones, and the Brain
Neurons, Hormones, and the Brain

... Site where a nerve impulse is transmitted from one neuron to another; includes the axon terminal, synaptic cleft, and receptor sites on receiving cell.  Neurotransmitter: Chemical substance that is released by transmitting neuron at the synapse and alters the activity of the receiving neuron. ©2002 ...
Chapter 8 Nervous System
Chapter 8 Nervous System

... (groups of cell bodies called nuclei) -outermost thin layer of gray matter-cerebral cortex - insula = 5th brain region (memory) ...
Supporting Information S1.
Supporting Information S1.

... MEA recording system with an inter-node spacing of 200 m. Consequently, here we show that neurites can extend significantly from the soma over multiple nodes, up to 800 m (4 nodes). (Right) The same culture was counterstained with an antibody against βTubIII to show the whole network development. ...
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PDF

... in a specific language format, that the information would be of no practical use unless transmitted and its meaning understood by a second neuron. Therefore, it was proposed that two neurons are required for communication, and further, that their shared ­dendritic–synaptic–dendritic (DSD) field cont ...
What are brain and spinal cord cancers?
What are brain and spinal cord cancers?

... removed by surgery but if this is not possible, cancer treatments such as radiotherapy may be used. M alignant tumours usually grow rapidly and spread within the brain and spinal cord. Malignant brain tumours can also be life-threatening. About 40 per cent of brain and spinal cord tumours are malign ...
Chapter 3 Lecture Notecards
Chapter 3 Lecture Notecards

... Research with split-brain subjects provided the first compelling evidence that the right hemisphere has its own special talents. Based on this research, investigators concluded that the left hemisphere usually handles verbal processing, whereas the right hemisphere usually handles nonverbal processi ...
Chapter 3 Part 1 - Doral Academy Preparatory
Chapter 3 Part 1 - Doral Academy Preparatory

... – Receptor sites ...
Chapter 3 Editable Lecture Notecards
Chapter 3 Editable Lecture Notecards

... Research with split-brain subjects provided the first compelling evidence that the right hemisphere has its own special talents. Based on this research, investigators concluded that the left hemisphere usually handles verbal processing, whereas the right hemisphere usually handles nonverbal processi ...
Using chaotic artificial neural networks to model memory in the brain
Using chaotic artificial neural networks to model memory in the brain

... Chaos occurs in dynamical systems that are sensitively dependent on initial conditions. Small differences in initial conditions yield widely diverging outcomes. Although such systems are deterministic, long-term predictions cannot be made [1]. There is growing evidence that future research on neural ...
Dynamic Stochastic Synapses as Computational Units
Dynamic Stochastic Synapses as Computational Units

... an excitatory neuron to an inhibitory neuron, which sends feedback directly to the presynaptic terminals. They showed through computer simulations that tuning the relative contributions of excitatory and inhibitory mechanisms can selectively increase the network output cross-correlation for certain ...
THE YIN AND YANG OF NEUROTROPHIN ACTION
THE YIN AND YANG OF NEUROTROPHIN ACTION

... was a significant decrease in the co-localization of BDNF and the secretory granule marker, and in regulated secretion36. Although the Val–Met mutation selectively impaired the regulated secretion of BDNF without a compensatory increase in constitutive secretion9,31, disrupting the interaction betwe ...
lecture 02
lecture 02

... – Major structures of a neuron input end: dendrites, which accumulate neural stimulation into the neuron itself cell body or soma: regulates the biological activity of the neuron axon: a long tube-like structure used to transmit information axon terminals or terminal arborizations:output end of ...
P312Ch02_Nervous System, Neurons Lecture
P312Ch02_Nervous System, Neurons Lecture

... A given neuron may be affected by neurotransmitters released by perhaps 1000s of other neurons. And a given neuron’s neurotransmitter may affect 1000s of other neurons. The result is that the extracellular fluid near the dendrites of a neuron will contain a changing mix of excitatory and inhibitory ...
Neurotransmitter Parameter Definitions
Neurotransmitter Parameter Definitions

... which taurine affects GABA.; First, it can inhibit GABA transaminase, an enzyme that metabolizes GABA. This allows GABA to stay in the synaptic cleft longer to bind to the postsynaptic receptor. Second, taurine can bind to the GABAAreceptor mimicking the effects of GABA. By helping GABA function, ta ...
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Activity-dependent plasticity

A defining feature of the brain is its capacity to undergo changes based on activity-dependent functions, also called activity-dependent plasticity. Its ability to remodel itself forms the basis of the brain’s capacity to retain memories, improve motor function, and enhance comprehension and speech amongst other things. It is this trait to retain and form memories that is functionally linked to plasticity and therefore many of the functions individuals perform on a daily basis. This plasticity is the result of changed gene expression that occurs because of organized cellular mechanisms.The brain’s ability to adapt toward active functions has allowed humans to specialize in specific processes based on relative use and activity. For example, a right-handed person may perform any movement poorly with his/her left hand but continuous practice with the less dominant hand can make both hands just as able. Another example is if someone was born with a neurological disorder such as autism or had a stroke that resulted in a disorder, then they are capable of retrieving much of their lost function by practicing and “rewiring” the brain in order to incorporate these lost manners. Thanks to the pioneers within this field, many of these advances have become available to most people and many more will continue to arrive as new features of plasticity are discovered.
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