Barlow, Horace (2001) - Cambridge Neuroscience
... upon their activity and may characteristically depend upon only a few of the most active neurons. The article also develops the idea of sparse coding, where the activity of a small number of neurons selected from a very large population forms a distributed representation of the sensory input (see al ...
... upon their activity and may characteristically depend upon only a few of the most active neurons. The article also develops the idea of sparse coding, where the activity of a small number of neurons selected from a very large population forms a distributed representation of the sensory input (see al ...
Visual signals in the dorsolateral pontine nucleus of the alert
... The persistence of the direction selective DLPN activity was investigated during smooth-pursuit eye movements. For a unit exhibiting test spot-related responses similar to those of the cell in Fig. 1, the receptive field of the transient component, though not studied in detail, was found to be less ...
... The persistence of the direction selective DLPN activity was investigated during smooth-pursuit eye movements. For a unit exhibiting test spot-related responses similar to those of the cell in Fig. 1, the receptive field of the transient component, though not studied in detail, was found to be less ...
IngesYve Behaviour - Dr. Jeffrey Nicol`s Courses
... • The lamina terminalis appears the be the part the brain that controls drinking by integra&ng the signals produced by osmometric and volumetric thirst • Research has shown that it is the SFO is the ...
... • The lamina terminalis appears the be the part the brain that controls drinking by integra&ng the signals produced by osmometric and volumetric thirst • Research has shown that it is the SFO is the ...
Genome wide expression profiling of the
... dominant biological processes occurring in the time frame used for micro-array analysis (Fig. 1B). The highest overrepresentation scores were clearly changing over time. Genes found regulated at early time points appeared to be more involved in generating the neuronal precursor area while genes foun ...
... dominant biological processes occurring in the time frame used for micro-array analysis (Fig. 1B). The highest overrepresentation scores were clearly changing over time. Genes found regulated at early time points appeared to be more involved in generating the neuronal precursor area while genes foun ...
Probing scale interaction in brain dynamics through synchronization
... or by more abstract models of neural excitation such as the integrate-and-fire model [3,4] or the FitzHugh–Nagumo model [5,6]. The set of equations representing each neuron’s membrane potential can be coupled in a way that mimics the synaptic junction. Thus, given a connectivity matrix, one can idea ...
... or by more abstract models of neural excitation such as the integrate-and-fire model [3,4] or the FitzHugh–Nagumo model [5,6]. The set of equations representing each neuron’s membrane potential can be coupled in a way that mimics the synaptic junction. Thus, given a connectivity matrix, one can idea ...
Visual and Oculomotor Functions of Monkey Subthalamic Nucleus
... The subthalamic nucleus (STN) is in a crucial position to influence the output of the basal ganglia. It projects to the internal and external segments of the globus pallidus (Carpenter et al. 198 1a; Groenewegen and Berendse 1990; Kita and Kitai 1987; Nauta and Cole 1978; Parent and Smith 1987; Smit ...
... The subthalamic nucleus (STN) is in a crucial position to influence the output of the basal ganglia. It projects to the internal and external segments of the globus pallidus (Carpenter et al. 198 1a; Groenewegen and Berendse 1990; Kita and Kitai 1987; Nauta and Cole 1978; Parent and Smith 1987; Smit ...
How to recognise collateral damage in partial nerve injury models... pain Commentary
... (ATF3) in at least 10% of neurons in the ipsilateral L4 DRG of rats that had undergone SNL [4,15]. ATF3 is not normally present in primary afferents, but can be detected in the nuclei of virtually all of those that have undergone axotomy [15]. A specific problem was whether the changes seen in L4 wer ...
... (ATF3) in at least 10% of neurons in the ipsilateral L4 DRG of rats that had undergone SNL [4,15]. ATF3 is not normally present in primary afferents, but can be detected in the nuclei of virtually all of those that have undergone axotomy [15]. A specific problem was whether the changes seen in L4 wer ...
Learning pattern recognition and decision making in the insect brain
... individuals of the same species [59] as would be expected given the genetic structure. In principle this peripheral olfactory structure already seems to be able to discriminate among odors at this early stage. However, the ability to discriminate depends on the number of possible odors, their concen ...
... individuals of the same species [59] as would be expected given the genetic structure. In principle this peripheral olfactory structure already seems to be able to discriminate among odors at this early stage. However, the ability to discriminate depends on the number of possible odors, their concen ...
Olfactory cortex as a model for telencephalic processing
... will potentiate. (Right) After potentiation, strengthened synapses (enlarged) contribute more voltage change to a cell whenever activated, so that the same three neurons may now fire in response to reduced inputs P, Q, and R, which would have been insufficient to elicit responses from these neurons ...
... will potentiate. (Right) After potentiation, strengthened synapses (enlarged) contribute more voltage change to a cell whenever activated, so that the same three neurons may now fire in response to reduced inputs P, Q, and R, which would have been insufficient to elicit responses from these neurons ...
Osteo-genesis
... • It is part of motor section of Visceral PNS. It is exclusively the motor system controlling the activity of cardiac muscle, smooth muscles and glands. • It has two components. Sympathetic System and Para-Sympathetic System. Sympathetic system is activated during fight, flight or fright. Parasympat ...
... • It is part of motor section of Visceral PNS. It is exclusively the motor system controlling the activity of cardiac muscle, smooth muscles and glands. • It has two components. Sympathetic System and Para-Sympathetic System. Sympathetic system is activated during fight, flight or fright. Parasympat ...
Neuronal mechanisms for the perception of ambiguous stimuli
... The study of how the brain responds to a shift in the perceptual appearance of a figure provides insights into neuronal processes that are crucially associated with perceptual decision-making. In the ideal case, the neuronal signals do indeed reflect the shift in perceptual appearance, because the e ...
... The study of how the brain responds to a shift in the perceptual appearance of a figure provides insights into neuronal processes that are crucially associated with perceptual decision-making. In the ideal case, the neuronal signals do indeed reflect the shift in perceptual appearance, because the e ...
Saladin 5e Extended Outline
... 3. Anterior to the cerebral aqueduct, the midbrain consists mainly of the two cerebral peduncles that anchor the cerebrum to the brain stem; each peduncle has three main components: tegmentum, substantia nigra, and cerebral crus. a. The tegmentum is dominated by the red nucleus, whose fibers form th ...
... 3. Anterior to the cerebral aqueduct, the midbrain consists mainly of the two cerebral peduncles that anchor the cerebrum to the brain stem; each peduncle has three main components: tegmentum, substantia nigra, and cerebral crus. a. The tegmentum is dominated by the red nucleus, whose fibers form th ...
MCB105 QUIZ 5 2016 wA
... owls and why? [1] instructive signal/ visual responses to allow alignment of visual and auditory space - their recordings showed that visual receptive fields of ICX neurons were restricted and quite similar in size to the ones observed in the OT. b) How did they open the 'gate' that prevented these ...
... owls and why? [1] instructive signal/ visual responses to allow alignment of visual and auditory space - their recordings showed that visual receptive fields of ICX neurons were restricted and quite similar in size to the ones observed in the OT. b) How did they open the 'gate' that prevented these ...
Document
... Parkinson’s Disease arises as a result of nerve cells called neurons gradually breaking down or dying in the brain. These nerve cells are located in the substantia nigra region of the midbrain. The substantia nigra is a part of the brain that plays a role in movement and requires the neurotransmitte ...
... Parkinson’s Disease arises as a result of nerve cells called neurons gradually breaking down or dying in the brain. These nerve cells are located in the substantia nigra region of the midbrain. The substantia nigra is a part of the brain that plays a role in movement and requires the neurotransmitte ...
6.12 Dorsal and Ventral Streams in the Sense of Touch
... a cortico-limbic circuit for object memory acquired through touch. The somatosensory dorsal stream is conveyed through the posterior parietal cortex (PPC), particularly the region bordering the intraparietal sulcus (IPS) in humans and monkeys. The dorsal stream represents the actions of the subject ...
... a cortico-limbic circuit for object memory acquired through touch. The somatosensory dorsal stream is conveyed through the posterior parietal cortex (PPC), particularly the region bordering the intraparietal sulcus (IPS) in humans and monkeys. The dorsal stream represents the actions of the subject ...
document1004
... included the isomorphic system-creating factor into the conceptual apparatus of systemic approach, and, secondly, it radically changed the understanding of the causation of behavior. According to the classic interpretation oi the theory ol lunctional systems, the activity of all elements is integrat ...
... included the isomorphic system-creating factor into the conceptual apparatus of systemic approach, and, secondly, it radically changed the understanding of the causation of behavior. According to the classic interpretation oi the theory ol lunctional systems, the activity of all elements is integrat ...
notes as
... • The effect of each input line on the neuron is controlled by a synaptic weight – The weights can be positive or negative • The synaptic weights adapt so that the whole network learns to perform useful computations – Recognizing objects, understanding language, making plans, controlling the body • ...
... • The effect of each input line on the neuron is controlled by a synaptic weight – The weights can be positive or negative • The synaptic weights adapt so that the whole network learns to perform useful computations – Recognizing objects, understanding language, making plans, controlling the body • ...
Cortical projections to the nucleus of the optic tract and dorsal
... Hoffmann and Fischer, 2001). Interestingly, lesions of the NOT-DTN also impair smooth pursuit (Ilg et al., 1993; Yakushin et al., 2000b). Thus, the NOT-DTN in the monkey not only plays an important role for the optokinetic nystagmus but for all slow eye movements. In the DLPN, several types of neuro ...
... Hoffmann and Fischer, 2001). Interestingly, lesions of the NOT-DTN also impair smooth pursuit (Ilg et al., 1993; Yakushin et al., 2000b). Thus, the NOT-DTN in the monkey not only plays an important role for the optokinetic nystagmus but for all slow eye movements. In the DLPN, several types of neuro ...
The Psychopathology of Pain
... Central Sensitization: Glia-Neuron Interaction • Toll-Like Receptors (TLR2 and TLR4) – Innate immune receptors that respond to diverse pathogens and pathogen- or damage-associated molecular patterns (PAMPs & DAMPs) as well as endogenous signals such as IL-1b, TNFα, IL-6 and nitric oxide – Activatio ...
... Central Sensitization: Glia-Neuron Interaction • Toll-Like Receptors (TLR2 and TLR4) – Innate immune receptors that respond to diverse pathogens and pathogen- or damage-associated molecular patterns (PAMPs & DAMPs) as well as endogenous signals such as IL-1b, TNFα, IL-6 and nitric oxide – Activatio ...
Spontaneous Spike Activity of Spinoreticular Tract Neurons During
... from quiet wakefulness principally by the presence of a large amplitude synchronized slow-wave EEG pattern, a relatively moderate level of EMG activity, and little or no EOG and PGO wave activity (Figures 2, 3). The group mean spontaneous spike rate for the same SRT neurons measured 19.1 spikes/s±3. ...
... from quiet wakefulness principally by the presence of a large amplitude synchronized slow-wave EEG pattern, a relatively moderate level of EMG activity, and little or no EOG and PGO wave activity (Figures 2, 3). The group mean spontaneous spike rate for the same SRT neurons measured 19.1 spikes/s±3. ...
Slides from Lecture 12/01/2004 (Andy Clark)
... influence an individual’s perception of flavor – Subject’s ratings of the pleasantness of an odor decrease after consuming that substance (specific) – Similar effect occurs regardless of whether food is: swallowed or just chewed ...
... influence an individual’s perception of flavor – Subject’s ratings of the pleasantness of an odor decrease after consuming that substance (specific) – Similar effect occurs regardless of whether food is: swallowed or just chewed ...
the organization of behavioral repertoire in motor cortex
... 2002). These findings have led to some uncertainty about the role of primary motor cortex and its relationship to premotor cortex. An alternative way to understand the relationship among the cortical motor areas was recently suggested by a set of electrical stimulation experiments. We stimulated site ...
... 2002). These findings have led to some uncertainty about the role of primary motor cortex and its relationship to premotor cortex. An alternative way to understand the relationship among the cortical motor areas was recently suggested by a set of electrical stimulation experiments. We stimulated site ...
Subcircuit-specific neuromodulation in the prefrontal cortex
... fast spiking interneurons (Lee et al., 2014). Therefore, PT neurons may represent a final convergence point for numerous local excitatory and inhibitory synaptic inputs. Equally important to the connections they make and receive, PT and IT neurons exhibit subpopulation-specific intrinsic electrophys ...
... fast spiking interneurons (Lee et al., 2014). Therefore, PT neurons may represent a final convergence point for numerous local excitatory and inhibitory synaptic inputs. Equally important to the connections they make and receive, PT and IT neurons exhibit subpopulation-specific intrinsic electrophys ...