View/Open - eDiss - Georg-August
... Communication is a very much fascinating thing. Its study has helped in the general understanding of motor and sensory systems, evolution, and speciation. A major appeal of studying communication is that a researcher can quantify how biologically important information can be coded in particular phys ...
... Communication is a very much fascinating thing. Its study has helped in the general understanding of motor and sensory systems, evolution, and speciation. A major appeal of studying communication is that a researcher can quantify how biologically important information can be coded in particular phys ...
Pyramidal neurons: dendritic structure and synaptic integration
... and fewer oblique apical dendrites than layer II/III pyramidal neurons. The apical dendrites of hippocampal CA3 pyramidal neurons branch closer to the soma than those of CA1 pyramidal neurons, which typically have a more distinctive main apical dendrite and tuft. CA3 pyramidal neurons also have a cl ...
... and fewer oblique apical dendrites than layer II/III pyramidal neurons. The apical dendrites of hippocampal CA3 pyramidal neurons branch closer to the soma than those of CA1 pyramidal neurons, which typically have a more distinctive main apical dendrite and tuft. CA3 pyramidal neurons also have a cl ...
The prefrontal cortex encompasses a large and heterogeneous set of
... constructing databanks on the connections and functional attributes of cortical areas. Here we used quantitative approaches to cortical mapping to investigate (i) if architectonic areas of the prefrontal cortex in adult rhesus monkeys have unique profiles and (ii) if groups of architectonic areas be ...
... constructing databanks on the connections and functional attributes of cortical areas. Here we used quantitative approaches to cortical mapping to investigate (i) if architectonic areas of the prefrontal cortex in adult rhesus monkeys have unique profiles and (ii) if groups of architectonic areas be ...
Serotonin in Affective Control
... the animal between orienting towards, and avoiding, potential foods. Exogenously applied serotonin also lowers feeding thresholds, and stimulates patterns of activity in the isolated nervous system that can be described as appetitively oriented fictive swimming (Gillette, 2006). This example illustr ...
... the animal between orienting towards, and avoiding, potential foods. Exogenously applied serotonin also lowers feeding thresholds, and stimulates patterns of activity in the isolated nervous system that can be described as appetitively oriented fictive swimming (Gillette, 2006). This example illustr ...
Central projections of the glossopharyngeal and
... organs in the coelomic cavity (Dart, '22; Herrick, '22). In the fish, the peripheral innervation of the glossopharyngeal nerve is generally restricted to the anterior part of the oral cavity, whereas the field of innervation for the vagus extends from the orobranchial region to the visceral organs i ...
... organs in the coelomic cavity (Dart, '22; Herrick, '22). In the fish, the peripheral innervation of the glossopharyngeal nerve is generally restricted to the anterior part of the oral cavity, whereas the field of innervation for the vagus extends from the orobranchial region to the visceral organs i ...
Experience-dependent corticofugal adjustment
... observed in the central nucleus of the IC by Yan and Suga (11), we delivered ASr in the same way as in that research. The BFs of single or multiple IC neurons were measured before and after 30-min delivery of ASr. (Step 2) To examine whether auditory experience based on associative learning evokes a ...
... observed in the central nucleus of the IC by Yan and Suga (11), we delivered ASr in the same way as in that research. The BFs of single or multiple IC neurons were measured before and after 30-min delivery of ASr. (Step 2) To examine whether auditory experience based on associative learning evokes a ...
WHAT IS THE MAMMALIAN DENTATE GYRUS GOOD FOR? Alessandro Treves
... performing expansion recoding (Marr, 1969). In the cerebellum, however, the granule cells are postsynaptic to the axons that are called (there) mossy fibers, and the huge cerebellar expansion factor from mossy fibers to granule cells is not observed in the hippocampus, where the striking element, in ...
... performing expansion recoding (Marr, 1969). In the cerebellum, however, the granule cells are postsynaptic to the axons that are called (there) mossy fibers, and the huge cerebellar expansion factor from mossy fibers to granule cells is not observed in the hippocampus, where the striking element, in ...
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... 1997), exhibited Nrp1 immunofluoresence at E9.5 (Fig. 1A). Nrp1 expression was maintained in sensory precursors throughout DRG formation (Fig. 1B,C). Nrp1 was also expressed by intersomitic vessels (Fig. 1A) but, unlike Nrp2 (Gammill et al., 2006), was not expressed in the somite (Fig. 1A, all scler ...
... 1997), exhibited Nrp1 immunofluoresence at E9.5 (Fig. 1A). Nrp1 expression was maintained in sensory precursors throughout DRG formation (Fig. 1B,C). Nrp1 was also expressed by intersomitic vessels (Fig. 1A) but, unlike Nrp2 (Gammill et al., 2006), was not expressed in the somite (Fig. 1A, all scler ...
The physiological role of orexin/hypocretin neurons in the regulation
... homeostasis by coordinating behavioral, metabolic, and neuroendocrine responses (Bernardis and Bellinger, 1996). Within this region, the lateral hypothalamic area (LHA) has been regarded as an important center for feeding and arousal because animal models with LHA lesions exhibit hypophagia and decr ...
... homeostasis by coordinating behavioral, metabolic, and neuroendocrine responses (Bernardis and Bellinger, 1996). Within this region, the lateral hypothalamic area (LHA) has been regarded as an important center for feeding and arousal because animal models with LHA lesions exhibit hypophagia and decr ...
A scientific theory of ars memoriae: spatial view cells in a continuous
... as a single autoassociation network, it can allow arbitrary associations between inputs originating from very different parts of the cerebral cortex to be formed. These might involve associations between information originating in the temporal visual cortex about the presence of an object, and infor ...
... as a single autoassociation network, it can allow arbitrary associations between inputs originating from very different parts of the cerebral cortex to be formed. These might involve associations between information originating in the temporal visual cortex about the presence of an object, and infor ...
Pheromone signaling in the fruit fly Drosophila
... There are several reasons for why D. melanogaster has achieved this position. On a very practical level there are several aspects of the species’ biology that facilitate its use in experiments, such as ease of rearing, low costs, and a short generation time. D. melanogaster has a relatively simple n ...
... There are several reasons for why D. melanogaster has achieved this position. On a very practical level there are several aspects of the species’ biology that facilitate its use in experiments, such as ease of rearing, low costs, and a short generation time. D. melanogaster has a relatively simple n ...
Development of the Nervous System of Carinina ochracea
... proboscis housed in a fluid-filled secondary body cavity (the rhynchocoel), and a ring-shaped brain, encircling the proboscis insertion instead of the mouth opening [10,11]. Currenly available immunohistochemical observations on nervous system development in Nemertea draw a heterogeneous and still f ...
... proboscis housed in a fluid-filled secondary body cavity (the rhynchocoel), and a ring-shaped brain, encircling the proboscis insertion instead of the mouth opening [10,11]. Currenly available immunohistochemical observations on nervous system development in Nemertea draw a heterogeneous and still f ...
Rhythms for Cognition: Communication through
... relation that is optimal for CTC, as has been highlighted in mathematical models (Börgers and Kopell, 2008; Cannon et al., 2014; Gielen et al., 2010). In the new CTC formulation, I propose that entrainment with delay is the general mechanism that sets up phase relations subserving CTC, both for unid ...
... relation that is optimal for CTC, as has been highlighted in mathematical models (Börgers and Kopell, 2008; Cannon et al., 2014; Gielen et al., 2010). In the new CTC formulation, I propose that entrainment with delay is the general mechanism that sets up phase relations subserving CTC, both for unid ...
Action Potential Backpropagation and Somato
... al., 1998; Destexhe et al., 1998); however, the distribution and properties of these channels are unknown. Simultaneous dendritic and somatic recording would allow investigation of the site(s) of action potential generation in TC neurons (Stuart et al., 1997b). Furthermore, once generated, action po ...
... al., 1998; Destexhe et al., 1998); however, the distribution and properties of these channels are unknown. Simultaneous dendritic and somatic recording would allow investigation of the site(s) of action potential generation in TC neurons (Stuart et al., 1997b). Furthermore, once generated, action po ...
chapter 4 the evolution of body, brain, behavior, and mind in
... able to crawl or run on land, using their tongue or large mouth to capture prey. However, four limbs do not constitute an intelligent preadaptation for human biped locomotion. How much better off we would be had we inherited six limbs. Running on four extremities, we could be as swift as some of the ...
... able to crawl or run on land, using their tongue or large mouth to capture prey. However, four limbs do not constitute an intelligent preadaptation for human biped locomotion. How much better off we would be had we inherited six limbs. Running on four extremities, we could be as swift as some of the ...
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... the best-suited out of a number of randomly-made synaptic connections would be selected by functional tests, and others would be removed. In both scenarios, pruning enhances the specificity of brain connectivity. Another case where pruning is necessary are developmental transitions of the nervous sy ...
... the best-suited out of a number of randomly-made synaptic connections would be selected by functional tests, and others would be removed. In both scenarios, pruning enhances the specificity of brain connectivity. Another case where pruning is necessary are developmental transitions of the nervous sy ...
L8-Physiology of Sleep and EEG 2013
... REM sleep. The LDT/PPT is the main source of ACh to the thalamus, and ACh depolarizes thalamic neurons to promote the transmission of information through the thalamus, driving the cortical activation that is probably required for the complex dreams of REM sleep. The LDT/PPT neurons may also activate ...
... REM sleep. The LDT/PPT is the main source of ACh to the thalamus, and ACh depolarizes thalamic neurons to promote the transmission of information through the thalamus, driving the cortical activation that is probably required for the complex dreams of REM sleep. The LDT/PPT neurons may also activate ...
Synaptic plasticity: taming the beast
... such a situation, the neuron acts as an integrator, and there is little correlation between the timing of its spikes and those of its inputs. If LTD dominates over LTP for random pre- and postsynaptic spike pairings21, this leads to an overall weakening of synaptic efficacy. As STDP weakens the syna ...
... such a situation, the neuron acts as an integrator, and there is little correlation between the timing of its spikes and those of its inputs. If LTD dominates over LTP for random pre- and postsynaptic spike pairings21, this leads to an overall weakening of synaptic efficacy. As STDP weakens the syna ...
Neurodegenerative Changes in the Motor Cortex and Cerebellum in Wistar... Following Acute Pneumococcal Meningitis
... cortex was counted at 400X magnification. The neurons with clear cell boundary and nucleus were only counted and cells with irregular shapes and that which stained darkly were excluded from quantification. A total of 15sections spaced 20 microns apart were selected for quantification. Number of neur ...
... cortex was counted at 400X magnification. The neurons with clear cell boundary and nucleus were only counted and cells with irregular shapes and that which stained darkly were excluded from quantification. A total of 15sections spaced 20 microns apart were selected for quantification. Number of neur ...
The Basal Ganglia and Motor Control
... indirect pathway or network suppresses such output. Noteworthy is that the subthalamic nucleus not only receives a (tonic) inhibitory input from the external pallidal segment .(and in this way is disinhibited during striatal activity) but also is projected upon directly by excitatory cortical and th ...
... indirect pathway or network suppresses such output. Noteworthy is that the subthalamic nucleus not only receives a (tonic) inhibitory input from the external pallidal segment .(and in this way is disinhibited during striatal activity) but also is projected upon directly by excitatory cortical and th ...