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LECTURE18.Olfaction&Taste
LECTURE18.Olfaction&Taste

... Olfactory sensory neurons are fairly short-lived (1-2 months), and regenerate from basal stem cells Each sensory neuron responds to a single odorant or a specific repertoire of chemically related odorants An odor is ENCODED by the specific combination of neurons which respond to it Sensory neurons r ...
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Brain Development - Pottstown School District

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... response (inhibition) at the BF of the cortical neuron in the control condition and an increase in response (facilitation) at the BF of the stimulated thalamic neuron. Such a BF shift is also elicited by auditory fear conditioning, and has been known as a “tonespecific plastic change • Such augmenta ...
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... in a continuous loop. Conscious movement comes from impulses in the brain travelling down the spinal cord, over this loop, and then back to the brain for processing. However, the stretch reflex skips the brain portion of the trip and follows the simple loop from muscle to spinal cord and back, makin ...
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... Einstein's brain weighed only 1,230 grams, which is less than the average adult male brain (about 1,400 grams). One of the differences that were found between Einstein’s brain compared to others was increased number of glial cells. It is known from animal studies that as we go from invertebrates to ...
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biology lecture notes chapter 2

... (gap between the axon of one cell and the dendrite of another cell)  Neurotransmitters diffuse (“float”) across the synaptic cleft. Some neurotransmitters excite the next cell into firing and some inhibit the next cell from firing.  Specific neurotransmitters “bind” with specific POSTSYNAPTIC RECE ...
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Channelrhodopsin



Channelrhodopsins are a subfamily of retinylidene proteins (rhodopsins) that function as light-gated ion channels. They serve as sensory photoreceptors in unicellular green algae, controlling phototaxis: movement in response to light. Expressed in cells of other organisms, they enable light to control electrical excitability, intracellular acidity, calcium influx, and other cellular processes. Channelrhodopsin-1 (ChR1) and Channelrhodopsin-2 (ChR2) from the model organism Chlamydomonas reinhardtii are the first discovered channelrhodopsins. Variants have been cloned from other algal species, and more are expected.
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