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Structural organization of the mormyrid ELL
Structural organization of the mormyrid ELL

... projection cells are still undetermined: primary afferents fiber layers. An important input arises from do not seem to contact large fusiform or large ganglionic electroreceptors, but corollary electromotor command cells directly, but seem to terminate exclusively on granular signals and propriocept ...
6 - Coach Eikrem's Website
6 - Coach Eikrem's Website

... – central nervous system (CNS) – consists of the brain and spinal cord – peripheral nervous system (PNS) – consists of cranial nerves and spinal nerves • sensory receptors • afferent (sensory) nerves – transmit nerve impulses from the sensory receptors in the skin, muscles, and joints to the CNS • e ...
Contributions of temporal-parietal junction to the human
Contributions of temporal-parietal junction to the human

... patients who could discriminate the stimuli. Further behavioral studies of these same temporal-parietal patients have shown reduced orienting to distracting stimuli 17. Other investigators have reported that patients with anterograde memory deficits due to posterior association cortex or limbic path ...
Hypothalamus and Limbic System
Hypothalamus and Limbic System

... Temperature regulation is an excellent example of a servo-control mechanism operating in the hypothalamus. The hypothalamus is sensitive both to hypothalamic and peripheral temperature, and it mediates changes in autonomic, endocrine and behavioral responses in order to maintain homeostasis. Feeding ...
Respiratory-related neurons of the fastigial nucleus in response to
Respiratory-related neurons of the fastigial nucleus in response to

... reflexes. After paralysis of the animal, supplemental anesthetic was administered when irregularities were observed in ABP, heart rate, and respiratory rate and pattern. To minimize movement of brain by mechanical ventilation, a bilateral pneumothorax was created. The inlet of the ventilator was con ...
Neural Compensations After Lesion of the Cerebral Cortex
Neural Compensations After Lesion of the Cerebral Cortex

... forelimb reaching tasks but over a 15-day period they show significant improvement (see also Rowntree & Kolb, 1997). Animals with larger lesions show far less return of function, however, and. when it occurs, it may take many weeks or months to stabilize (e.g., Kolb et al., in press). A similar resu ...
Proceedings of 2014 BMI the Third International Conference on
Proceedings of 2014 BMI the Third International Conference on

... computer   scientists   are   busy   with   engineering   inspired   methods,   not   motivated   by   brain   inspired  methods.     However,  in  this  talk,  I  argue  that  it  is  no  longer  true  that  “we  do  not  know   how ...
For Peer Review - diss.fu
For Peer Review - diss.fu

... MnR: 7.8 mm posterior to bregma, 0.8 from the midline, and 7.8 mm ventral to the dura (-6°). Hemisphere for injections into VTA was randomized prior to each experiment. The retrograde tracer Fluorogold (FG; 2-hydroxy-4,4-diamino-stilbene, 1% in 0.1 M cacodylate buffer, pH 7.4; Fluorochrome, Denver, ...
Physiological origins and functional correlates of EEG rhythmic
Physiological origins and functional correlates of EEG rhythmic

... Recent neurophysiological evidence, however, suggests an alternative explanation for these frequency changes. Both Steriade, Dossi, and Nunez (1991) and McCormick and Huguenard (1992) found that the frequency of membrane potential oscillations in thalamic relay cells slows when hyperpolarization is ...
Response Properties of Neighboring Neurons in the
Response Properties of Neighboring Neurons in the

... properties (Robinson, 1968) as well as the electrical properties of the neurons and the extracellular space (Nunez, 1981). However, if this spatial boundary is very large relative to the cell density, we may expect that the number of cells contributing to the multi-unit activity will get so large th ...
Independent and Convergent Signals From the Pontomedullary
Independent and Convergent Signals From the Pontomedullary

... duration 0.5–1.5 s) that informed the cat that the shutter closing off the food tube was about to open (Shutter Open/GO Signal). The frequency of the tone directed the cat to use either the left or the right limb, and the shutter remained open for 3 s. Top left trace: activity of a reticulospinal ne ...
NETMORPH: A Framework for the Stochastic
NETMORPH: A Framework for the Stochastic

... dynamic behavior of growth cones—specialized structures at the ends of outgrowing neurites that mediate neurite elongation and branching (Letourneau et al. 1991). Synapses can occur where axonal and dendritic branches of different neurons come sufficiently close to each other (Braitenberg and Schütz ...
Impact of a deletion of the full-length and short isoform of
Impact of a deletion of the full-length and short isoform of

... binding site. Although the functions of s-p75NTR are largely unknown, some studies suggest that it is a functional receptor in vivo (Fujii and Kunugi, 2009). In order to analyze the functions and roles of p75NTR in more detail, p75NTR knockout mice have been generated. One knockout mouse line has be ...
Lab 5: Nervous System I
Lab 5: Nervous System I

... vertebral column. It ends at the level of L2 (the area between the first and second lumbar vertebrae). • The cord ends in a tapering cone shape which is called the conus medularis. • The lumbar and sacral nerves angle sharply downward and travel through the vertebral canal before they exit through i ...
Next Selection - Guido de Bres
Next Selection - Guido de Bres

... It Was Self-Defense ...
The what, where and how of auditory
The what, where and how of auditory

... Identifying an auditory object involves assigning elements of the incoming sensory input into one or more sources. Several of the cues that are used to group auditory stimuli into objects can be classified as ‘simultaneous cues’ (REF. 11). We automatically group the elements of a visual scene, such ...
Infection Merozoite Surface Protein 1 During Malaria 19
Infection Merozoite Surface Protein 1 During Malaria 19

... two of these cells will become secondary SOPs for the lch5 and one of them for the vchA/B cluster. Conversely, in the thoracic segments the primary SOPs show a lower expression of rhomboid and do not signal at the same level to the ectoderm, thus secondary recruitment does not take place (Lage et al ...
Segregated cholinergic transmission in the ventral tegmental area
Segregated cholinergic transmission in the ventral tegmental area

... axons (albeit not significant; Supplementary Fig. 4) and with an area of higher density in the dorsal part of the parabrachial pigmented area (Fig. 1c and 2c). Consecutive sections were processed to reveal the YFP by a permanent peroxidase reaction product and processed for electron microscopy to ch ...
Anatomical organization of the central olfactory
Anatomical organization of the central olfactory

... signal is one of the issues separating vertebrates and insects. In vertebrates, the chemosensory receptors belong to the G-protein-coupled family that generates action potentials via intracellular events (Buck & Axel, 1991). Insect odor receptors are however structurally, and genetically unrelated t ...
Spatiotemporal Profiles of Proprioception Processed by
Spatiotemporal Profiles of Proprioception Processed by

... Muscle spindles in the jaw-closing muscles, which are innervated by trigeminal mesencephalic neurons (MesV neurons), control the strength of occlusion and the position of the mandible. The mechanisms underlying cortical processing of proprioceptive information are critical to understanding how senso ...
Neural Mapping of Direction and Frequency in
Neural Mapping of Direction and Frequency in

... mechanical microscope stage. The neuron is moved under the microscope so that its branches are traced under a video cursor, superimposed over a frame-grabbed video image of the tissue. Movements of the microscope stage are monitored by linear encoders mounted to the stage, each encoder having a reso ...
Role of the basal ganglia in conditional associative learning
Role of the basal ganglia in conditional associative learning

... 1. Electrophysiological study : results and perspectives ................................................ 145 2. Functional imaging study : results and perspectives .................................................. 147 3. Neuropsychological study : results and perspectives ......................... ...
15-2 Sensory Receptors
15-2 Sensory Receptors

... •  The Spinothalamic Pathway •  Provides conscious sensations of poorly localized (“crude”) touch, pressure, pain, and temperature •  First-order neurons •  Axons of first-order sensory neurons enter spinal cord •  And synapse on second-order neurons within ...
Unusual ultrastructural findings in dendrites of pyramidal
Unusual ultrastructural findings in dendrites of pyramidal

... oriented tissue fragments from the cerebral cortex were obtained and observed under electron microscope. The most significant ultrastructural findings were located within distal dendrites of cortical pyramidal neurons: loss of mitochondria, disorganization and loss of microtubules, formation of vacu ...
Central and peripheral chemoreceptors evoke distinct responses in
Central and peripheral chemoreceptors evoke distinct responses in

... raphé nuclei. Midline raphé neurons are proposed to be elements of a distributed brainstem system of central chemoreceptors, as well as modulators of central chemoreceptors at other sites, including the retrotrapezoid nucleus. Stimulation of the raphé system or peripheral chemoreceptors can induc ...
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Feature detection (nervous system)

Feature detection is a process by which the nervous system sorts or filters complex natural stimuli in order to extract behaviorally relevant cues that have a high probability of being associated with important objects or organisms in their environment, as opposed to irrelevant background or noise. Feature detectors are individual neurons – or groups of neurons – in the brain which code for perceptually significant stimuli. Early in the sensory pathway feature detectors tend to have simple properties; later they become more and more complex as the features to which they respond become more and more specific. For example, simple cells in the visual cortex of the domestic cat (Felis catus), respond to edges – a feature which is more likely to occur in objects and organisms in the environment. By contrast, the background of a natural visual environment tends to be noisy – emphasizing high spatial frequencies but lacking in extended edges. Responding selectively to an extended edge – either a bright line on a dark background, or the reverse – highlights objects that are near or very large. Edge detectors are useful to a cat, because edges do not occur often in the background “noise” of the visual environment, which is of little consequence to the animal.
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