THE BRAIN - Dublin City Schools
... A fatty substance that covers axons. The more myelin an axon has, the faster nerve impulses can travel. – After puberty, the amount of myelin in the brain increases dramatically, making the brain much more efficient. ...
... A fatty substance that covers axons. The more myelin an axon has, the faster nerve impulses can travel. – After puberty, the amount of myelin in the brain increases dramatically, making the brain much more efficient. ...
`synapse`.
... Interaction of NT and protein receptor open post-synaptic membrane ion channel for Na+ After transmission the NT is either degraded by an enzyme or taken back into the pre-synaptic membrane by a transporter or reuptake pump ...
... Interaction of NT and protein receptor open post-synaptic membrane ion channel for Na+ After transmission the NT is either degraded by an enzyme or taken back into the pre-synaptic membrane by a transporter or reuptake pump ...
Neurons - Transcript - the Cassiopeia Project
... symphonies... is not the product of simple cellular interactions. And yet it might be...because everything that humans do (or think or feel) is the result of the basic units of brain structure - the neurons. The human brain contains more than a hundred billion neurons. Just like a single ant could n ...
... symphonies... is not the product of simple cellular interactions. And yet it might be...because everything that humans do (or think or feel) is the result of the basic units of brain structure - the neurons. The human brain contains more than a hundred billion neurons. Just like a single ant could n ...
Memory Lecture
... Sensitization is a process that allows an animal to generalize an aversion response elicited by a noxious stimulus to a variety of other, non-noxious stimuli The probable mechanism of sensitization is shown in Fig. 25.2C 3. Short-term synaptic plasticity in mammals Fig. 25.3 2. Synaptic facilit ...
... Sensitization is a process that allows an animal to generalize an aversion response elicited by a noxious stimulus to a variety of other, non-noxious stimuli The probable mechanism of sensitization is shown in Fig. 25.2C 3. Short-term synaptic plasticity in mammals Fig. 25.3 2. Synaptic facilit ...
Object Recognition and Learning using the BioRC Biomimetic Real
... Network is fully connected but synaptic strengths (neurotransmitter concentrations) can be adjusted by a “trainer” circuit using “dopamine” Trainer circuit contains the rules for the game In training mode, external inputs force correct answers to strengthen synapses ...
... Network is fully connected but synaptic strengths (neurotransmitter concentrations) can be adjusted by a “trainer” circuit using “dopamine” Trainer circuit contains the rules for the game In training mode, external inputs force correct answers to strengthen synapses ...
OverviewCerebellum
... There have been many heuristic models of learning and memory. One popular model is based on computer memory. A computer stores instructions and data on a hard disk or in RAM; the processor then fetches and manipulates these files. In other words, the memory location is different from the processing ...
... There have been many heuristic models of learning and memory. One popular model is based on computer memory. A computer stores instructions and data on a hard disk or in RAM; the processor then fetches and manipulates these files. In other words, the memory location is different from the processing ...
Early Brain Development
... Parts of the Brain The brain has different sections, each section controls a specific function. One of the most important parts is the cortex. The cortex is the part of the brain that its growth permits more complex learning. Neurons in the baby’s brain are tiny messengers that transmit information ...
... Parts of the Brain The brain has different sections, each section controls a specific function. One of the most important parts is the cortex. The cortex is the part of the brain that its growth permits more complex learning. Neurons in the baby’s brain are tiny messengers that transmit information ...
Developing an integrated digital content strategy to drive
... your own map is changing • The brain has a powerful ability to change, adapt, and rewire itself throughout life. • Individual neurons grow, and new ones are added to the active circuits • It changes how it uses its genetic code, in response to life experiences ...
... your own map is changing • The brain has a powerful ability to change, adapt, and rewire itself throughout life. • Individual neurons grow, and new ones are added to the active circuits • It changes how it uses its genetic code, in response to life experiences ...
Drugs Change the way Neurons communicate
... • Alcohol binds to GABA receptors on the dendrites of neurons which release GABA as their neurotransmitter. • Alcohol is an inhibitory signal (CNS depressant) so it reduces the activity of the presynaptic neuron (which releases GABA as its neurotransmitter). • The presynaptic neuron will release les ...
... • Alcohol binds to GABA receptors on the dendrites of neurons which release GABA as their neurotransmitter. • Alcohol is an inhibitory signal (CNS depressant) so it reduces the activity of the presynaptic neuron (which releases GABA as its neurotransmitter). • The presynaptic neuron will release les ...
Katie Newhall Synchrony in stochastic pulse-coupled neuronal network models
... Synchrony in stochastic pulse-coupled neuronal network models Many pulse-coupled dynamical systems possess synchronous attracting states. Even stochastically driven model networks of Integrate and Fire neurons demonstrate synchrony over a large range of parameters. We study the interplay between ...
... Synchrony in stochastic pulse-coupled neuronal network models Many pulse-coupled dynamical systems possess synchronous attracting states. Even stochastically driven model networks of Integrate and Fire neurons demonstrate synchrony over a large range of parameters. We study the interplay between ...
Development
... Parkinson’s Disease • Due to loss of substantia nigra dopamine neurons. • Common in people over 80. • Treated with L-dopa, DA transplants, or DA receptor agonists. • 5-10% early-onset familial: several genes identified (alpha-synuclein, parkin) • 90% sporadic: pesticides and MPTP. • Mitochondria an ...
... Parkinson’s Disease • Due to loss of substantia nigra dopamine neurons. • Common in people over 80. • Treated with L-dopa, DA transplants, or DA receptor agonists. • 5-10% early-onset familial: several genes identified (alpha-synuclein, parkin) • 90% sporadic: pesticides and MPTP. • Mitochondria an ...
Lecture 6C
... glucose was absorbed and metabolized by active neurons to a much greater extent than by other neurons. After the experiment, the animals were sacrificed and the cortical radioactivity pattern was analyzed. This method provides high resolution radioactive labeling of active neurons. The physical patt ...
... glucose was absorbed and metabolized by active neurons to a much greater extent than by other neurons. After the experiment, the animals were sacrificed and the cortical radioactivity pattern was analyzed. This method provides high resolution radioactive labeling of active neurons. The physical patt ...
biopsychology-2-synaptic-transmission
... • Brain chemicals released from the synaptic vesicles that relay signals across the synapse from one neuron to another. • Can be divided into those that perform an excitatory function and those that perform an inhibitory function. • Can you think of any examples from the biological approach? ...
... • Brain chemicals released from the synaptic vesicles that relay signals across the synapse from one neuron to another. • Can be divided into those that perform an excitatory function and those that perform an inhibitory function. • Can you think of any examples from the biological approach? ...
The Nervous System - Kirchner-WHS
... notify the brain to react to the situation. ► Reflexes, movement, muscles, everything! ...
... notify the brain to react to the situation. ► Reflexes, movement, muscles, everything! ...
Structure of the Nervous System
... In spinal cord, colors are reversed… outside white, inside gray ...
... In spinal cord, colors are reversed… outside white, inside gray ...
5104_b4
... Stress is a biologically significant factor that, by altering brain cell properties, can disturb cognitive processes such as learning and memory, and consequently limit the quality of human life. Extensive rodent and human research has shown that the hippocampus is not only crucially involved in mem ...
... Stress is a biologically significant factor that, by altering brain cell properties, can disturb cognitive processes such as learning and memory, and consequently limit the quality of human life. Extensive rodent and human research has shown that the hippocampus is not only crucially involved in mem ...
Chapter 13
... AP5 – drug that blocks NMDA receptors; prevents establishment of LTP in field CA1 and the dentate gyrus; does not effect LTP that has already been established Transmission in potentiated synapses involves AMPA receptors (control Na+ channel) Dendritic spikes – an action potential that occurs in the ...
... AP5 – drug that blocks NMDA receptors; prevents establishment of LTP in field CA1 and the dentate gyrus; does not effect LTP that has already been established Transmission in potentiated synapses involves AMPA receptors (control Na+ channel) Dendritic spikes – an action potential that occurs in the ...
Fourth week
... • During the last phase of development, the earlier processes of cell proliferation and migration continue to some degree, and synapses continue to form all over the brain. • But two new processes begin in earnest: a pruning of unnecessary cells and connections - an active process, known as apoptosi ...
... • During the last phase of development, the earlier processes of cell proliferation and migration continue to some degree, and synapses continue to form all over the brain. • But two new processes begin in earnest: a pruning of unnecessary cells and connections - an active process, known as apoptosi ...
Crossword Puzzle
... 3. junction between the axon tip of the sending neuron and the dendrite or cell body of the receiving neuron 4. an impairment of language as a result of damage to any of several cortical areas 9. located at the back of the frontal lobe, the part of the cortex that controls voluntary movement 10. Lim ...
... 3. junction between the axon tip of the sending neuron and the dendrite or cell body of the receiving neuron 4. an impairment of language as a result of damage to any of several cortical areas 9. located at the back of the frontal lobe, the part of the cortex that controls voluntary movement 10. Lim ...
THE BRAIN The brain can be divided into three main regions
... 2. Pons: Contains several clusters of cell bodies involved with sleep and arousal. 3. Cerebellum: critical to the coordination of movement and to the sense of equilibrium. One of the structures first depressed by alcohol. MIDBRAIN 1. The midbrain contains an area that is concerned with integrating s ...
... 2. Pons: Contains several clusters of cell bodies involved with sleep and arousal. 3. Cerebellum: critical to the coordination of movement and to the sense of equilibrium. One of the structures first depressed by alcohol. MIDBRAIN 1. The midbrain contains an area that is concerned with integrating s ...
Chapter 03: Neuroscience and behaviour PowerPoint
... • Dendrites — “tree” • Cell body — “soma” • Axon — “myelin” ...
... • Dendrites — “tree” • Cell body — “soma” • Axon — “myelin” ...