Down - 서울대 : Biointelligence lab
... repeatedly or persistently takes part in firing it, some growth or metabolic change takes place in both cells such that A’s efficiency, as one of the cells firing B, is increased.” Brain mechanisms and how they can be related to behavior Cell assemblies The details of synaptic plasticity Exp ...
... repeatedly or persistently takes part in firing it, some growth or metabolic change takes place in both cells such that A’s efficiency, as one of the cells firing B, is increased.” Brain mechanisms and how they can be related to behavior Cell assemblies The details of synaptic plasticity Exp ...
Oscillatory phase coupling coordinates
... timing depends on frequency-specific oscillatory LFP phase, both proximal to the neuron (24) and at more distal locations (25). That is, considering the LFP filtered at a given frequency as a sinusoidal waveform, individual neurons tend to emit spikes clustered around a preferred phase, such as the pe ...
... timing depends on frequency-specific oscillatory LFP phase, both proximal to the neuron (24) and at more distal locations (25). That is, considering the LFP filtered at a given frequency as a sinusoidal waveform, individual neurons tend to emit spikes clustered around a preferred phase, such as the pe ...
Modeling Visual Cognition
... told that their reaction time would not be measured and they would be able to use as much time as needed for making their decision. We found that a Poisson Counter Model could accurately explain the encoding process. The model implies that during stimulus analysis, tentative categorizations that sti ...
... told that their reaction time would not be measured and they would be able to use as much time as needed for making their decision. We found that a Poisson Counter Model could accurately explain the encoding process. The model implies that during stimulus analysis, tentative categorizations that sti ...
Expression of Cux-1 and Cux-2 in the Subventricular Zone and
... cortex, regulating their correct molecular specification and the development of axonal projections (Weimann et al., 1999; Hevner et al., 2001). Even within the same layer, the expression of different transcription factors, such as Otx-1 and Er81 in layer V, correlates with projection to specific subco ...
... cortex, regulating their correct molecular specification and the development of axonal projections (Weimann et al., 1999; Hevner et al., 2001). Even within the same layer, the expression of different transcription factors, such as Otx-1 and Er81 in layer V, correlates with projection to specific subco ...
How Do Neurons Communicate?
... In 1921, Otto Loewi conducted a now well-known experiment on the control of heart rate, the design of which came to him in a dream. One night, having fallen asleep while reading a short novel, he awoke suddenly and completely, with the idea fully formed. He scribbled the plan of the experiment on a ...
... In 1921, Otto Loewi conducted a now well-known experiment on the control of heart rate, the design of which came to him in a dream. One night, having fallen asleep while reading a short novel, he awoke suddenly and completely, with the idea fully formed. He scribbled the plan of the experiment on a ...
1From neuronal activity to scalp potential fields - Assets
... (defined by the local dipole strength and the percentage of neuronal elements contributing) and the spatial extent (area) of polarization due to neural synchronization, particularly for the healthy human brain. The relation of intracortical activity to surface-recorded EEG is far from simple. The su ...
... (defined by the local dipole strength and the percentage of neuronal elements contributing) and the spatial extent (area) of polarization due to neural synchronization, particularly for the healthy human brain. The relation of intracortical activity to surface-recorded EEG is far from simple. The su ...
Memory Maintenance in Synapses with Calcium
... modifications induced by specific patterns of pre- and postsynaptic activity. For this scenario to be viable, synaptic modifications must survive the ubiquitous ongoing activity present in neural circuits in vivo. In this paper, we investigate the time scales of memory maintenance in a calcium-based ...
... modifications induced by specific patterns of pre- and postsynaptic activity. For this scenario to be viable, synaptic modifications must survive the ubiquitous ongoing activity present in neural circuits in vivo. In this paper, we investigate the time scales of memory maintenance in a calcium-based ...
Morphological and F`unctional Identifications of Catfish Retinal
... provides the inr(t) = I?4 G,Kh>,~ w 491 (4) formation of two one-input experiments and, in addition, the information about the interaction 7Z=0 between the two inputs. In consideration that where {h}, is the set of kernels of degree n. experimental life times are very limited in the Terms of differe ...
... provides the inr(t) = I?4 G,Kh>,~ w 491 (4) formation of two one-input experiments and, in addition, the information about the interaction 7Z=0 between the two inputs. In consideration that where {h}, is the set of kernels of degree n. experimental life times are very limited in the Terms of differe ...
1-Student`s Refexes
... in intrfusal fibre stimulation of sensory endings . Afferent impulses go to spinal cord stimulate: Alpha Motoneurons , which send impulses to Extrafusal Muscle Fibres contraction of the muscle bulk . Gamma Efferent Motoneurons , which send motor impulses to the Intrafusal Fibers inside the m ...
... in intrfusal fibre stimulation of sensory endings . Afferent impulses go to spinal cord stimulate: Alpha Motoneurons , which send impulses to Extrafusal Muscle Fibres contraction of the muscle bulk . Gamma Efferent Motoneurons , which send motor impulses to the Intrafusal Fibers inside the m ...
Rules relating connections to cortical structure in primate prefrontal cortex H. Barbas
... The structural di2erences that appear to underlie the pattern of corticocortical connections may arise during development. The lower overall density of neurons in limbic areas in comparison with the eulaminate areas can be explained if limbic areas complete their development earlier than the eulamin ...
... The structural di2erences that appear to underlie the pattern of corticocortical connections may arise during development. The lower overall density of neurons in limbic areas in comparison with the eulaminate areas can be explained if limbic areas complete their development earlier than the eulamin ...
Lab #6: Neurophysiology Simulation
... antagonists – they bind to a receptor protein but do not activate the metabolic pathway connected to that receptor and prevent the normal neurotransmitter from binding that receptor, suppressing the normal effects of the neurotransmitter (e.g., cobratoxin, found in cobra venom, prevents acetylcholin ...
... antagonists – they bind to a receptor protein but do not activate the metabolic pathway connected to that receptor and prevent the normal neurotransmitter from binding that receptor, suppressing the normal effects of the neurotransmitter (e.g., cobratoxin, found in cobra venom, prevents acetylcholin ...
Précis of The Brain and Emotion
... appear to have been reconnected (compared to rodents) to place much more emphasis on cortical processing, taking place in areas such as the orbitofrontal cortex (see Chapter 2). The principle of the stage of sensory processing at which reward value is extracted and made explicit in the representatio ...
... appear to have been reconnected (compared to rodents) to place much more emphasis on cortical processing, taking place in areas such as the orbitofrontal cortex (see Chapter 2). The principle of the stage of sensory processing at which reward value is extracted and made explicit in the representatio ...
Pontine respiratory activity involved in inspiratory/expiratory phase
... The physiological role of the pontine-mediated mechanisms involved in IE phase transition has not received much attention, and reports of synaptic interactions required for mediating IE phase transitions are rare. Although several computational models were developed to explain possible pontine mecha ...
... The physiological role of the pontine-mediated mechanisms involved in IE phase transition has not received much attention, and reports of synaptic interactions required for mediating IE phase transitions are rare. Although several computational models were developed to explain possible pontine mecha ...
Clonal analysis of the mushroom bodies
... neurons, effective means of studying the underlying mechanisms in a physiological environment are lacking. Investigating development of the Drosophila brain using powerful molecular genetic tools may shed new light on the mechanisms that govern the development of more complex nervous systems. Severa ...
... neurons, effective means of studying the underlying mechanisms in a physiological environment are lacking. Investigating development of the Drosophila brain using powerful molecular genetic tools may shed new light on the mechanisms that govern the development of more complex nervous systems. Severa ...
Orexin (Hypocretin)-Like Immunoreactivity in the Cat Hypothalamus
... techniques. OrA-ir neurons were found principally in the lateral hypothalamic area (LHA) at the level of the tuberal cinereum and in the dorsal and posterior hypothalamic areas. In the LHA the majority of the neurons were located dorsal and lateral to the fornix; a small number of OrAir neurons were ...
... techniques. OrA-ir neurons were found principally in the lateral hypothalamic area (LHA) at the level of the tuberal cinereum and in the dorsal and posterior hypothalamic areas. In the LHA the majority of the neurons were located dorsal and lateral to the fornix; a small number of OrAir neurons were ...
Saccade Target Selection in the Superior - Smith
... and Wurtz (1995) and Basso and Wurtz (1998). The final category is the movement neuron, which discharges a burst of activity tightly linked to saccade execution but does not have significant visual or delay activity (Fig. 1E). ...
... and Wurtz (1995) and Basso and Wurtz (1998). The final category is the movement neuron, which discharges a burst of activity tightly linked to saccade execution but does not have significant visual or delay activity (Fig. 1E). ...
36_LectureSlidesAdde..
... • Leptin stimulates POMC otherwise known as aMSH/CART neurons. This increases excitation of the catabolic pathway, and it increases inhibition of the anabolic pathway. The result again is a net increase in activity of the catabolic pathway relative to the anabolic pathway. • The net increase in cata ...
... • Leptin stimulates POMC otherwise known as aMSH/CART neurons. This increases excitation of the catabolic pathway, and it increases inhibition of the anabolic pathway. The result again is a net increase in activity of the catabolic pathway relative to the anabolic pathway. • The net increase in cata ...