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PRIMARY VISUAL CORTEX NEURONS THAT CONTRIBUTE TO
... temporal frequency were systematically varied to quantitatively determine the neuron’s preferred tuning characteristics. For all neurons reported in this experiment, their CRF locations were within central 10° and CRF diameters ranged from 0.6° to 1.5°. The CRF of each neuron recorded was classified ...
... temporal frequency were systematically varied to quantitatively determine the neuron’s preferred tuning characteristics. For all neurons reported in this experiment, their CRF locations were within central 10° and CRF diameters ranged from 0.6° to 1.5°. The CRF of each neuron recorded was classified ...
General and cell type specific mechanisms target
... *Present address: Department of Biology, Texas A&M University, College Station, TX 77843, USA ...
... *Present address: Department of Biology, Texas A&M University, College Station, TX 77843, USA ...
Caudal Topographic Nucleus Isthmi and the Rostra1
... neurons labeled in Imr, nucleus lentiformis mesencephali, or profundus mesencephali rostralis (PMr). The axons of neurons in those nuclei were reconstructed from serial sections and found to branch widely, sparsely innervating large areas of the tectum. Fourth, the dense thickets are not terminals o ...
... neurons labeled in Imr, nucleus lentiformis mesencephali, or profundus mesencephali rostralis (PMr). The axons of neurons in those nuclei were reconstructed from serial sections and found to branch widely, sparsely innervating large areas of the tectum. Fourth, the dense thickets are not terminals o ...
Copyright 1984 by Desav, Paul Henri All Rights Reserved
... Fibers from the thalamus could be traced to the striatum and DVR but only a few were seen entering dorsal cortex: in fact, these fibers do continue into dorsal cortex but presumably are not stained because they immediately form fine preterminal branches). There have been only a few studies of the re ...
... Fibers from the thalamus could be traced to the striatum and DVR but only a few were seen entering dorsal cortex: in fact, these fibers do continue into dorsal cortex but presumably are not stained because they immediately form fine preterminal branches). There have been only a few studies of the re ...
Descartes` Error: Emotion, Reason, and the Human Brain
... recent investigations of his modern counterparts and review perti nent findings from neuropsychological research in humans and animals. Further, I propose that human reason depends on several brain systems, working in concert across many levels of neuronal organization, rather than on a single brai ...
... recent investigations of his modern counterparts and review perti nent findings from neuropsychological research in humans and animals. Further, I propose that human reason depends on several brain systems, working in concert across many levels of neuronal organization, rather than on a single brai ...
Chapter 2: Biological Bases of Behavior MULTIPLE CHOICE 1
... 1. What progressive neurological disorder is characterized by memory loss, personality deterioration, and emotional outbursts? a. Parkinson’s disease c. Autism b. Multiple Sclerosis d. Alzheimer’s disease ANS: D PTS: 1 DIF: Bloom's: Remember REF: 2.1 Introduction, Textbook | Video - Alzheimer's Dise ...
... 1. What progressive neurological disorder is characterized by memory loss, personality deterioration, and emotional outbursts? a. Parkinson’s disease c. Autism b. Multiple Sclerosis d. Alzheimer’s disease ANS: D PTS: 1 DIF: Bloom's: Remember REF: 2.1 Introduction, Textbook | Video - Alzheimer's Dise ...
CREB Regulation of Eukaryotic Gene Expression
... specific function was in the development of learning and memory. Seminal work done by Kandel and coworkers in the sea slug, Aplysia, found that primitive forms of motor neuron memory were dependent on CREB activity [27]. CREB mediates the development of memories by initiating transcription events re ...
... specific function was in the development of learning and memory. Seminal work done by Kandel and coworkers in the sea slug, Aplysia, found that primitive forms of motor neuron memory were dependent on CREB activity [27]. CREB mediates the development of memories by initiating transcription events re ...
Calcium homeostasis in aging neurons
... timed presynaptic Ca2+ current results in a large, fast postsynaptic response (Llinas et al., 1981; Sabatini and Regehr, 1996), whereas the slower asynchronous component, resulting from residual Ca2+ remaining in the terminal after an action potential, provides a basal or tonic level of neurotransmi ...
... timed presynaptic Ca2+ current results in a large, fast postsynaptic response (Llinas et al., 1981; Sabatini and Regehr, 1996), whereas the slower asynchronous component, resulting from residual Ca2+ remaining in the terminal after an action potential, provides a basal or tonic level of neurotransmi ...
Full Text - Harvard University
... general, not specific, and motivational, not directing,' thus energizing behavior in a nonspecific way (Bolles 1975). Various needs such as food or water deprivation constitute different ways of activating drive, but drive itself is singular. Moreover, he postulated that the internal buildup of driv ...
... general, not specific, and motivational, not directing,' thus energizing behavior in a nonspecific way (Bolles 1975). Various needs such as food or water deprivation constitute different ways of activating drive, but drive itself is singular. Moreover, he postulated that the internal buildup of driv ...
[ H]GABA and - The University of Sydney
... and 5.8 mM glucose and oxygenated with 95% O2 and 5% CO2. The cerebellum was dissected free and cut (first in a sagittal direction and then in a transverse direction) using a McIlwain tissue chopper (three cerebella in 33 ml of KrebsRinger-HEPES buffer, pH 7.4; 0.1 x 0.1 µm). Smaller slices were use ...
... and 5.8 mM glucose and oxygenated with 95% O2 and 5% CO2. The cerebellum was dissected free and cut (first in a sagittal direction and then in a transverse direction) using a McIlwain tissue chopper (three cerebella in 33 ml of KrebsRinger-HEPES buffer, pH 7.4; 0.1 x 0.1 µm). Smaller slices were use ...
Dynamic Computation of Incentive Salience: “Wanting” What Was
... distinct auditory cues (Fig. 1). Two 5 s cues predicted oral infusions that began at their offset. A third cue (CS⫺) predicted nothing. The sucrose or salt taste infusion (0.1 ml per infusion at 0.02 ml/s) lasted for 5 s. The “CSsalt cue” predicted a concentrated NaCl infusion (1.5 M). A different “ ...
... distinct auditory cues (Fig. 1). Two 5 s cues predicted oral infusions that began at their offset. A third cue (CS⫺) predicted nothing. The sucrose or salt taste infusion (0.1 ml per infusion at 0.02 ml/s) lasted for 5 s. The “CSsalt cue” predicted a concentrated NaCl infusion (1.5 M). A different “ ...
What clinical disorders tell us about the neural
... are shown. (B) Simulated 10 horizontal saccade by model described in text. (C) Representative record of a 40 horizontal saccade made by a normal subject; note the positive skewing of the velocity waveform. (D) Simulated 40 horizontal saccade. (E) Plot of peak velocity versus amplitude of saccades ...
... are shown. (B) Simulated 10 horizontal saccade by model described in text. (C) Representative record of a 40 horizontal saccade made by a normal subject; note the positive skewing of the velocity waveform. (D) Simulated 40 horizontal saccade. (E) Plot of peak velocity versus amplitude of saccades ...
Imaging development and plasticity in the mouse visual system
... Neuronal activity, both intrinsically generated and sensory-evoked, is known to play an important role in the development of the brain. Sensory experiences continue to exert a strong influence on the functional connectivity of neuronal circuits, especially in the cerebral cortex, allowing for learni ...
... Neuronal activity, both intrinsically generated and sensory-evoked, is known to play an important role in the development of the brain. Sensory experiences continue to exert a strong influence on the functional connectivity of neuronal circuits, especially in the cerebral cortex, allowing for learni ...
Assembly and Function of Spinal Circuits for Motor Control
... establish and maintain sharp boundaries between progenitor domains and ensure the production of defined classes of postmitotic cells (Figure 1a). Like spinal progenitors, postmitotic neuronal classes are defined by the specific transcription factors they express, and they can be further categorized ...
... establish and maintain sharp boundaries between progenitor domains and ensure the production of defined classes of postmitotic cells (Figure 1a). Like spinal progenitors, postmitotic neuronal classes are defined by the specific transcription factors they express, and they can be further categorized ...
Molecular and Cellular Endocrinology Metabolic control of puberty
... that leptin acts (mainly) indirectly in the control of the GnRH system. Yet, there has been a conspicuous lack of functional data for such an indirect mode of action until very recently. In the last months, however, Quennell et al. (2009) have presented conclusive experimental evidence to demonstrat ...
... that leptin acts (mainly) indirectly in the control of the GnRH system. Yet, there has been a conspicuous lack of functional data for such an indirect mode of action until very recently. In the last months, however, Quennell et al. (2009) have presented conclusive experimental evidence to demonstrat ...
Acute and chronic effects of cannabinoids on human brain: gene-environment interactions
... Acute and chronic effects of cannabinoids on human brain: gene-environment interactions related to psychiatric disorders Albert Batalla Cases ...
... Acute and chronic effects of cannabinoids on human brain: gene-environment interactions related to psychiatric disorders Albert Batalla Cases ...
full text - Anthony Herrel
... for several months (Bons and Bons, 1960; Chapter 5). The duration, and end, of this socalled embryonic diapause is dependent on temperature but not on moisture (Andrews and Donoghue, 2004; Andrews et al., 2008; Adams et al., 2010). Temperature also affects speed of development, growth of the yolk sa ...
... for several months (Bons and Bons, 1960; Chapter 5). The duration, and end, of this socalled embryonic diapause is dependent on temperature but not on moisture (Andrews and Donoghue, 2004; Andrews et al., 2008; Adams et al., 2010). Temperature also affects speed of development, growth of the yolk sa ...
cont`d. - PSY388
... • The effect of a neurotransmitter depends on its receptor on the postsynaptic cell • An ionotropic effect refers to when a neurotransmitter attaches to receptors and immediately opens ion channels • Transmitter-gated or ligand-gated channels are channels controlled by a neurotransmitter ...
... • The effect of a neurotransmitter depends on its receptor on the postsynaptic cell • An ionotropic effect refers to when a neurotransmitter attaches to receptors and immediately opens ion channels • Transmitter-gated or ligand-gated channels are channels controlled by a neurotransmitter ...
HUMAN BRAIN EVOLUTION IN AN ECOLOGICAL CONTEXT^
... body size over time (phyletic dwarfing), a negative slope value would have been obtained despite the enhancement of relative brain size. Failure to separate the effects of phyletic size change from allometric scaling effects has been a major source of confusion in discussions of sizesize ...
... body size over time (phyletic dwarfing), a negative slope value would have been obtained despite the enhancement of relative brain size. Failure to separate the effects of phyletic size change from allometric scaling effects has been a major source of confusion in discussions of sizesize ...
GnRH Protein Levels in Atrazine-Treated Axolotls
... possibly by inducing aromatase, a third group was raised in 10-8 M ß-estradiol-3-benzoate (Sigma Aldrich, St. Louis, MO) in 40% Holtfreter’s solution. If atrazine’s effects are mediated in full by increased estrogen levels, similar effects should be seen in atrazine- and estradiol-treated animals. B ...
... possibly by inducing aromatase, a third group was raised in 10-8 M ß-estradiol-3-benzoate (Sigma Aldrich, St. Louis, MO) in 40% Holtfreter’s solution. If atrazine’s effects are mediated in full by increased estrogen levels, similar effects should be seen in atrazine- and estradiol-treated animals. B ...
Mitochondrial cytopathy in adults: What we know so far
... patients have minimal objective findings, possibly because fatigability is difficult to quantify in a physician’s office. Only in severe cases or late in the course of the illness are gross muscle bulk and strength reduced. However, a careful physical examination early on may reveal doughy muscle co ...
... patients have minimal objective findings, possibly because fatigability is difficult to quantify in a physician’s office. Only in severe cases or late in the course of the illness are gross muscle bulk and strength reduced. However, a careful physical examination early on may reveal doughy muscle co ...
to DIABETES MELLITUS ppt
... effect of Insulin therapy! B/C long term diabetics do not produce counteracting hormones of Glucagon, EN, cortisol etc. that normally provide defense against Hypoglycemia! ...
... effect of Insulin therapy! B/C long term diabetics do not produce counteracting hormones of Glucagon, EN, cortisol etc. that normally provide defense against Hypoglycemia! ...
IOSR Journal Of Environmental Science, Toxicology And Food Technology (IOSR-JESTFT)
... fluoride. Ascorbic acid and Ginkgo biloba received animal brain showed less degeneration. Fluoride exposed brain showed histopathological changes suggesting necrosis/ apoptosis, and these changes are linked to the thyroid hormone levels [36]. The neurodegeneration observed in the present study was s ...
... fluoride. Ascorbic acid and Ginkgo biloba received animal brain showed less degeneration. Fluoride exposed brain showed histopathological changes suggesting necrosis/ apoptosis, and these changes are linked to the thyroid hormone levels [36]. The neurodegeneration observed in the present study was s ...
Clinical neurochemistry
![](https://commons.wikimedia.org/wiki/Special:FilePath/Neuron_with_mHtt_inclusion.jpg?width=300)
Clinical neurochemistry is the field of neurological biochemistry which relates biochemical phenomena to clinical symptomatic manifestations in humans. While neurochemistry is mostly associated with the effects of neurotransmitters and similarly-functioning chemicals on neurons themselves, clinical neurochemistry relates these phenomena to system-wide symptoms. Clinical neurochemistry is related to neurogenesis, neuromodulation, neuroplasticity, neuroendocrinology, and neuroimmunology in the context of associating neurological findings at both lower and higher level organismal functions.