Fine tuning of vestibular apparatus in terrestrial snail at Earth and
... Retrieval of memory (reminding) is followed either by reconsolidation that maintains the memory, or by extinction that results in weakening of existing memory or formation of a competing memory. In our study we analyzed the behavior and responses of identified neurons involved in the network underly ...
... Retrieval of memory (reminding) is followed either by reconsolidation that maintains the memory, or by extinction that results in weakening of existing memory or formation of a competing memory. In our study we analyzed the behavior and responses of identified neurons involved in the network underly ...
Robust path integration in the entorhinal grid cell - cneuro
... During the course of their evolution animals have developed several types of sensory organs. Information collected by these can be used by the animal to execute several tasks required for its survival. One such task is navigation for which animals at different levels of development use different typ ...
... During the course of their evolution animals have developed several types of sensory organs. Information collected by these can be used by the animal to execute several tasks required for its survival. One such task is navigation for which animals at different levels of development use different typ ...
The effect of learning on the face selective responses of neurons in
... neuron were stable. One iteration consisted of a set of trials on each one of which one of the stimuli from the set was shown. The order of presentation of the stimuli was re-randomized for each iteration. Then the standard set of images was replaced with a set of 4-9 novel face images. (None of the ...
... neuron were stable. One iteration consisted of a set of trials on each one of which one of the stimuli from the set was shown. The order of presentation of the stimuli was re-randomized for each iteration. Then the standard set of images was replaced with a set of 4-9 novel face images. (None of the ...
Coding of relative size in monkey inferotemporal cortex
... cessfully maintaining fixation within a 3° window centered on a fixation cross. Post hoc analyses revealed that the monkeys’ gaze was closely centered around fixation (average standard deviations in the x and y directions: 0.21° and 0.34°), with no systematic difference across versions. Each trial b ...
... cessfully maintaining fixation within a 3° window centered on a fixation cross. Post hoc analyses revealed that the monkeys’ gaze was closely centered around fixation (average standard deviations in the x and y directions: 0.21° and 0.34°), with no systematic difference across versions. Each trial b ...
Connectivity and circuitry in a dish versus in a brain
... Strong, repetitive synaptic activity leads to synaptic plasticity. Long-term potentiation (LTP) and long-term depression (LTD) are two forms of synaptic plasticity that have been widely investigated and are linked to learning and memory (reviewed in [24]). During induction of LTP at the CA3–CA1 hipp ...
... Strong, repetitive synaptic activity leads to synaptic plasticity. Long-term potentiation (LTP) and long-term depression (LTD) are two forms of synaptic plasticity that have been widely investigated and are linked to learning and memory (reviewed in [24]). During induction of LTP at the CA3–CA1 hipp ...
Comparative analysis of the baseline spike activity of
... Analysis of histograms of interspike intervals for neurons in the fastigial nucleus in normal conditions showed a predominance of polymodal neurons (64.5%) (Fig. 3, B, III). There were significantly fewer mono- and bimodal neurons (22.6% and 12.9% respectively) (Fig. 3, B, I, II). Analysis of the di ...
... Analysis of histograms of interspike intervals for neurons in the fastigial nucleus in normal conditions showed a predominance of polymodal neurons (64.5%) (Fig. 3, B, III). There were significantly fewer mono- and bimodal neurons (22.6% and 12.9% respectively) (Fig. 3, B, I, II). Analysis of the di ...
Understanding mirror neurons - LIRA-Lab
... toire of motor primitives that during production are at the basis of the generation of articulatory gestures, and during perception are activated in the listener as the result of an acoustically-evoked motor “resonance” (Fadiga, Craighero, Buccino, & Rizzolatti, 2002; Wilson, Saygin, Sereno, & Iacob ...
... toire of motor primitives that during production are at the basis of the generation of articulatory gestures, and during perception are activated in the listener as the result of an acoustically-evoked motor “resonance” (Fadiga, Craighero, Buccino, & Rizzolatti, 2002; Wilson, Saygin, Sereno, & Iacob ...
NMDA receptor blockade causes selective prefrontal
... caused by ketamine sensitive plasticity; namely, an interaction between deviant and drug effects at the level of connectivity. Given that DCM estimates both synaptic plasticity induced by deviants and changes induced by ketamine, we can disambiguate these hypotheses based on measurements of MMN resp ...
... caused by ketamine sensitive plasticity; namely, an interaction between deviant and drug effects at the level of connectivity. Given that DCM estimates both synaptic plasticity induced by deviants and changes induced by ketamine, we can disambiguate these hypotheses based on measurements of MMN resp ...
Canonical Microcircuits for Predictive Coding
... Using conductance-based models, they showed that a simple model could reproduce these responses. Their model contained superficial and deep pyramidal cells with a common pool of inhibitory cells. All three neuronal populations received thalamic drive and were fully interconnected. The deep pyramidal ...
... Using conductance-based models, they showed that a simple model could reproduce these responses. Their model contained superficial and deep pyramidal cells with a common pool of inhibitory cells. All three neuronal populations received thalamic drive and were fully interconnected. The deep pyramidal ...
Fluctuations in Perceptual Decisions Panagiota Theodoni
... realistic attractor network, by consistently reducing it to a fourvariable rate- based model, and by extracting analytical expressions for second- order statistics. We considered human behavioral and macaque neurophysiological data collected when subjects were confronting with such ambiguities. Our ...
... realistic attractor network, by consistently reducing it to a fourvariable rate- based model, and by extracting analytical expressions for second- order statistics. We considered human behavioral and macaque neurophysiological data collected when subjects were confronting with such ambiguities. Our ...
Regulation of Neuroblast Cell-Cycle Kinetics Plays a Crucial Role in
... leaving fraction (L F) were based on 6000 neurons in areas 3 and 6 and 3000 neurons in areas 17 and 18a. Statistical analysis was performed using Statview 4.02 software. Most of the parameters described in this study consisted of proportions of neurons, and the statistical significance of the result ...
... leaving fraction (L F) were based on 6000 neurons in areas 3 and 6 and 3000 neurons in areas 17 and 18a. Statistical analysis was performed using Statview 4.02 software. Most of the parameters described in this study consisted of proportions of neurons, and the statistical significance of the result ...
Visual Categorization and the Primate Prefrontal Cortex
... required them to judge whether two successive stimuli were from the same category (Fig. 2). The trial began when the monkey grasped a metal bar and fixated a small (0.3°) white spot at the center of a CRT screen. They were required to maintain gaze within a ⫾2° square window around the fixation spot ...
... required them to judge whether two successive stimuli were from the same category (Fig. 2). The trial began when the monkey grasped a metal bar and fixated a small (0.3°) white spot at the center of a CRT screen. They were required to maintain gaze within a ⫾2° square window around the fixation spot ...
Isodirectional Tuning of Adjacent Interneurons and Pyramidal Cells
... occurred within 2 ms of the previous spikes was only 0.3% (maximum for any unit was 2.2%). The average percentage of spikes that occurred within 2.5 ms of a previous spike was only 0.8% (maximum was 4.0%). Thus even with four or five units being recorded simultaneously all units were well isolated. ...
... occurred within 2 ms of the previous spikes was only 0.3% (maximum for any unit was 2.2%). The average percentage of spikes that occurred within 2.5 ms of a previous spike was only 0.8% (maximum was 4.0%). Thus even with four or five units being recorded simultaneously all units were well isolated. ...
Kv2 Channels Form Delayed-Rectifier Potassium Channels In Situ
... and Control neurons were 3.9 ⫾ 0.5 and 6.5 ⫾ 0.9 pS/m 2, respectively ( p ⬍ 0.05), indicating that overexpression of the mutant subunit produced a 40% reduction in Gmax. In mature ⫹Mutant and Control neurons, Gmax values were 13.7 ⫾ 1.0 and 21.5 ⫾ 1.5 pS/m 2 ( p ⬍ 0.0002), indicating that overexpr ...
... and Control neurons were 3.9 ⫾ 0.5 and 6.5 ⫾ 0.9 pS/m 2, respectively ( p ⬍ 0.05), indicating that overexpression of the mutant subunit produced a 40% reduction in Gmax. In mature ⫹Mutant and Control neurons, Gmax values were 13.7 ⫾ 1.0 and 21.5 ⫾ 1.5 pS/m 2 ( p ⬍ 0.0002), indicating that overexpr ...
Autonomic Nervous System
... neurons, preganglionic axons are small-diameter, myelinated, relatively slowly conducting B fibers.) (The axons of the postganglionic neurons are mostly unmyelinated C fibers and terminate on the visceral effectors.) • Neurotransmitters: Autonomic nerves release NT that may be excitatory or inhibito ...
... neurons, preganglionic axons are small-diameter, myelinated, relatively slowly conducting B fibers.) (The axons of the postganglionic neurons are mostly unmyelinated C fibers and terminate on the visceral effectors.) • Neurotransmitters: Autonomic nerves release NT that may be excitatory or inhibito ...
Focal local field potential (LFP) signature of the single
... From literature it is known that synaptic projections from thalamic cells onto FS cells are primarily located on somas or dendrites proximal to soma (White et al., 1984; Keller and White, 1987; Staiger et al., 1996; Ahmed et al., 1997; Porter et al., 2001; Bagnall et al., 2011), while thalamic proje ...
... From literature it is known that synaptic projections from thalamic cells onto FS cells are primarily located on somas or dendrites proximal to soma (White et al., 1984; Keller and White, 1987; Staiger et al., 1996; Ahmed et al., 1997; Porter et al., 2001; Bagnall et al., 2011), while thalamic proje ...
Focal local field potential (LFP) signature of the single
... From literature it is known that synaptic projections from thalamic cells onto FS cells are primarily located on somas or dendrites proximal to soma (White et al., 1984; Keller and White, 1987; Staiger et al., 1996; Ahmed et al., 1997; Porter et al., 2001; Bagnall et al., 2011), while thalamic proje ...
... From literature it is known that synaptic projections from thalamic cells onto FS cells are primarily located on somas or dendrites proximal to soma (White et al., 1984; Keller and White, 1987; Staiger et al., 1996; Ahmed et al., 1997; Porter et al., 2001; Bagnall et al., 2011), while thalamic proje ...
The role responses of expression and identity in the face
... neuron were measured to a standard digitized set of stimuli of different faces and of non-face stimuli ~. If a neuron responded to one or more of the faces, but to none of the non-face stimuli in the set, then a wide range of digitized and real 3-dimensional non-face stimuli were shown, to determine ...
... neuron were measured to a standard digitized set of stimuli of different faces and of non-face stimuli ~. If a neuron responded to one or more of the faces, but to none of the non-face stimuli in the set, then a wide range of digitized and real 3-dimensional non-face stimuli were shown, to determine ...
Stochastic neural network dynamics: synchronisation and control
... has not completely faded, the second pulse will be accumulated to the remaining signal of the first pulse. Spatial summation is characterised by accrued incoming pulses arriving from different dendritic branches almost simultaneously. Consequently, inputs must arrive within a short time period to si ...
... has not completely faded, the second pulse will be accumulated to the remaining signal of the first pulse. Spatial summation is characterised by accrued incoming pulses arriving from different dendritic branches almost simultaneously. Consequently, inputs must arrive within a short time period to si ...
Control of dopaminergic neuron survival by the unfolded protein
... The selective loss of dopaminergic neurons is characteristic of Parkinson disease (PD). Protein folding stress is a salient feature of PD. This study uncovers a previously undefined function of a major unfolded protein response (UPR) transcription factor (XBP1) in supporting the survival of nigral d ...
... The selective loss of dopaminergic neurons is characteristic of Parkinson disease (PD). Protein folding stress is a salient feature of PD. This study uncovers a previously undefined function of a major unfolded protein response (UPR) transcription factor (XBP1) in supporting the survival of nigral d ...
binding, internalization, and retrograde transport of `251
... the actions of NGF in target cells. It may be that plasma using modified 35-mm culture dishes (Hawrot and Patmembrane-localized binding of NGF mediates a set of terson, 1979; Hawrot, 1980). The growth of non-neuronal rapid responses, such as the efflux of Na+ ions (Skaper cells was prevented by trea ...
... the actions of NGF in target cells. It may be that plasma using modified 35-mm culture dishes (Hawrot and Patmembrane-localized binding of NGF mediates a set of terson, 1979; Hawrot, 1980). The growth of non-neuronal rapid responses, such as the efflux of Na+ ions (Skaper cells was prevented by trea ...
Chemosense in Mollusks
... ▪ Most of the snail’s reactions to the odors were negative (avoidance response). The point is that a large number of generic chemicals can be detected. Cross-react with biologically relevant avoidance detector? (Voss, M. 1999) ...
... ▪ Most of the snail’s reactions to the odors were negative (avoidance response). The point is that a large number of generic chemicals can be detected. Cross-react with biologically relevant avoidance detector? (Voss, M. 1999) ...
Action Potential Backpropagation and Somato
... branching. The relationship between action potential and steadystate voltage attenuation was found to be close to 1 for recordings made from stem dendrites, but ⬍1 for recordings made after dendritic branching (Fig. 2 D). This suggests that action potential backpropagation is active; that is, it is ...
... branching. The relationship between action potential and steadystate voltage attenuation was found to be close to 1 for recordings made from stem dendrites, but ⬍1 for recordings made after dendritic branching (Fig. 2 D). This suggests that action potential backpropagation is active; that is, it is ...
Nerve Regeneration in C. elegans after femtosecond laser axotomy
... IV. PHOTODAMAGE THRESHOLD: TIME-LAPSE GFP FLUORESCENCE PHOTOBLEACHING AND RECOVERY To determine the energy threshold of cellular photodamage, we have performed controlled photobleaching experiments by exposing cell bodies to laser pulses with different pulse energies at a 1.0-kHz repetition rate. We ...
... IV. PHOTODAMAGE THRESHOLD: TIME-LAPSE GFP FLUORESCENCE PHOTOBLEACHING AND RECOVERY To determine the energy threshold of cellular photodamage, we have performed controlled photobleaching experiments by exposing cell bodies to laser pulses with different pulse energies at a 1.0-kHz repetition rate. We ...