How Do Short-Term Changes at Synapses Fine
... behaving rodents. Time-dependent information analysis further predicted that this optimization of information transfer for spike bursts depends on the presence of facilitation/augmentation and is not present in high-release probability, depressing synapses. Instead, depressing synapses are predicted ...
... behaving rodents. Time-dependent information analysis further predicted that this optimization of information transfer for spike bursts depends on the presence of facilitation/augmentation and is not present in high-release probability, depressing synapses. Instead, depressing synapses are predicted ...
Region Specific Micromodularity in the Uppermost Layers in Primate
... Although our first impression with PV had suggested a honeycomb pattern, the modularity is not uniform. Rather, it shows a high degree of regional variability in both size and shape, ranging from small-scale honeycomb or reticulum, to largerscale patches. The upper layer modularity can also be demon ...
... Although our first impression with PV had suggested a honeycomb pattern, the modularity is not uniform. Rather, it shows a high degree of regional variability in both size and shape, ranging from small-scale honeycomb or reticulum, to largerscale patches. The upper layer modularity can also be demon ...
Developmental structure in brain evolution
... the representation of the body surface and the primary motor representation occupies less than a tenth of the surface extent of isocortex, and it is not at all clear (depending upon your model of the brain) why specialized sense organs like eyes and ears should also increase so regularly with body s ...
... the representation of the body surface and the primary motor representation occupies less than a tenth of the surface extent of isocortex, and it is not at all clear (depending upon your model of the brain) why specialized sense organs like eyes and ears should also increase so regularly with body s ...
Eye movement control by the cerebral cortex
... during the delay period, when spatial memory is involved [34]. FMRI studies have confirmed the involvement of Brodmann area 46 in spatial memory [35,36], with an activity in this area that can last at least 24 s [35]. In a psychophysical study in normal subjects, it was suggested that a spatial memor ...
... during the delay period, when spatial memory is involved [34]. FMRI studies have confirmed the involvement of Brodmann area 46 in spatial memory [35,36], with an activity in this area that can last at least 24 s [35]. In a psychophysical study in normal subjects, it was suggested that a spatial memor ...
PDF preprint - The Computational Neurobiology Laboratory
... pressure on the eyeballs (Tyler, 1978), in “near death” experiences (Blackmore, 1992), and most strikingly, shortly after taking hallucinogens containing ingredients such as LSD, cannabis, mescaline, or psilocybin (Siegel & Jarvik, 1975). The images do not move with the eyes and sometimes are fixed i ...
... pressure on the eyeballs (Tyler, 1978), in “near death” experiences (Blackmore, 1992), and most strikingly, shortly after taking hallucinogens containing ingredients such as LSD, cannabis, mescaline, or psilocybin (Siegel & Jarvik, 1975). The images do not move with the eyes and sometimes are fixed i ...
Domain-general mechanisms of complex working memory span
... (2007a,b) have argued that there are two dissociable domain-general mechanisms that influence WM capacity; (1) a dynamic attention component that maintains a small amount of information in a transiently more accessible state (i.e., in STM), and (2) a search component, responsible for guiding a search ...
... (2007a,b) have argued that there are two dissociable domain-general mechanisms that influence WM capacity; (1) a dynamic attention component that maintains a small amount of information in a transiently more accessible state (i.e., in STM), and (2) a search component, responsible for guiding a search ...
Mirroring others` emotions relates to empathy and
... the MNS system, narrowly defined as the pars opercularis and adjacent ventral premotor cortex, as well as the anterior inferior parietal lobule (i.e., the human homologues of areas F5 and PF in the monkey brain where mirror neurons were first discovered using single cell recordings). MNS activity in ...
... the MNS system, narrowly defined as the pars opercularis and adjacent ventral premotor cortex, as well as the anterior inferior parietal lobule (i.e., the human homologues of areas F5 and PF in the monkey brain where mirror neurons were first discovered using single cell recordings). MNS activity in ...
03&04 ANS LECTURE Sultan Ayoub Meo Sept 2 2012
... 3 “Decreases” decreased HR, diameter of airways and diameter of pupil • Paradoxical fear when there is no escape route or no way to win causes massive activation of parasympathetic division loss of control over urination and defecation ...
... 3 “Decreases” decreased HR, diameter of airways and diameter of pupil • Paradoxical fear when there is no escape route or no way to win causes massive activation of parasympathetic division loss of control over urination and defecation ...
Wager, T. D., Kang, J., Johnson, T. D., Nichols, T. E., Satpute, A. B.
... one emotion type from another, it is not clear that these findings are reliable enough (with sufficiently large effects) or generalizable enough across studies to meaningfully use brain information to infer what type of emotion was experienced. Recently, studies have begun to take a pattern-based vi ...
... one emotion type from another, it is not clear that these findings are reliable enough (with sufficiently large effects) or generalizable enough across studies to meaningfully use brain information to infer what type of emotion was experienced. Recently, studies have begun to take a pattern-based vi ...
MAY 5, 2000 Submitted to the Annual Review of Neuroscience AN
... inhibitory interactions. Voluntary shifts of attention result from the influence of excitatory topdown signals representing the to-be-attended features of the scene. These bias the competition among neurons representing the scene, increasing the activity of neurons representing the to-beattended fe ...
... inhibitory interactions. Voluntary shifts of attention result from the influence of excitatory topdown signals representing the to-be-attended features of the scene. These bias the competition among neurons representing the scene, increasing the activity of neurons representing the to-beattended fe ...
- Late Adulthood
... The vast majority of physical changes observed during late adulthood are closely related to the process of advanced aging. Physical functioning and daily activities are curtailed as the organ systems degenerate. Many of the symptoms of organ degeneration appear prominently in middle adulthood, but t ...
... The vast majority of physical changes observed during late adulthood are closely related to the process of advanced aging. Physical functioning and daily activities are curtailed as the organ systems degenerate. Many of the symptoms of organ degeneration appear prominently in middle adulthood, but t ...
Neural model for learning-to-learn of novel task sets in
... Van Rullen et al. (1998) called the Rank-Order Coding (ROC) algorithm. The ROC algorithm has been proposed as a discrete and faster model of the derivative integrate-and-fire neuron (Van Rullen and Thorpe, 2002). ROC neurons are sensitive ...
... Van Rullen et al. (1998) called the Rank-Order Coding (ROC) algorithm. The ROC algorithm has been proposed as a discrete and faster model of the derivative integrate-and-fire neuron (Van Rullen and Thorpe, 2002). ROC neurons are sensitive ...
09 - Pierce College
... d. Occipital lobes 29. Primary auditory cortex is located here: a. Frontal lobe b. Parietal lobes c. Temporal lobes d. Occipital lobes 30. The part of your brain that receives, interprets and acts on action potentials from the eyes is located in which lobe? a. Frontal b. Parietal c. Temporal d. Occ ...
... d. Occipital lobes 29. Primary auditory cortex is located here: a. Frontal lobe b. Parietal lobes c. Temporal lobes d. Occipital lobes 30. The part of your brain that receives, interprets and acts on action potentials from the eyes is located in which lobe? a. Frontal b. Parietal c. Temporal d. Occ ...
Voyages in Development, Second Edition, Spencer A. Rathus
... • Proliferation of dendrites and axon terminals ...
... • Proliferation of dendrites and axon terminals ...
Synaptic plasticity: taming the beast
... models is to globally adjust all the synapses onto each postsynaptic neuron based on its level of activity3. The adjustment can take two forms, depending on whether the synapses to a particular neuron are changed by the same amount (subtractive) or by an amount proportional to their strength (multip ...
... models is to globally adjust all the synapses onto each postsynaptic neuron based on its level of activity3. The adjustment can take two forms, depending on whether the synapses to a particular neuron are changed by the same amount (subtractive) or by an amount proportional to their strength (multip ...
A Neural Network of Adaptively Timed Reinforcement
... its attentional focus and releases exploratory behavior aimed at finding food somewhere else? Alternatively, if the animal does wait, but food does not appear after the two seconds have elapsed, why does the animal then react to the unexpected nonoccurrence of food by becoming frustrated, shifting i ...
... its attentional focus and releases exploratory behavior aimed at finding food somewhere else? Alternatively, if the animal does wait, but food does not appear after the two seconds have elapsed, why does the animal then react to the unexpected nonoccurrence of food by becoming frustrated, shifting i ...
Bayesian Spiking Neurons II: Learning
... free parameter, the other parameters being constrained by the statistics of the synaptic input st . 3 Learning the Parameters In this section, we show that the parameters of the generative model, ron , roff , wi , θ , corresponding respectively to the temporal dynamics, synaptic weights, and bias, c ...
... free parameter, the other parameters being constrained by the statistics of the synaptic input st . 3 Learning the Parameters In this section, we show that the parameters of the generative model, ron , roff , wi , θ , corresponding respectively to the temporal dynamics, synaptic weights, and bias, c ...
Apomorphine Induces Contralateral Rotation 1 Running Head
... concentrations of 6-OHDA into the right medial forebrain bundle. The four groups demonstrated significant changes motor function, dopaminergic cell loss in the SN, and neuronal firing rates in the striatum; thus mimicking each progressive stage of human PD because larger dosages that ...
... concentrations of 6-OHDA into the right medial forebrain bundle. The four groups demonstrated significant changes motor function, dopaminergic cell loss in the SN, and neuronal firing rates in the striatum; thus mimicking each progressive stage of human PD because larger dosages that ...
Testing Promotes Long-Term Learning via Stabilizing Activation
... efficiency of testing over restudying has a positive correlation with the length of retention interval. Although this interaction between learning strategy and retention interval seems to be an important aspect of human learning, the responsible functional neural networks have not yet been identifie ...
... efficiency of testing over restudying has a positive correlation with the length of retention interval. Although this interaction between learning strategy and retention interval seems to be an important aspect of human learning, the responsible functional neural networks have not yet been identifie ...
Hippocampal mechanisms for the context-dependent retrieval of episodes 2005 Special issue
... a location is mediated by forward associations. This retrieval is gated by temporal context. The convergence of these two mechanisms allows selective retrieval of a single previous episode. (B) Entorhinal cortex layer III (ECIII) encodes and retrieves all prior sequences from a given input. Sustaine ...
... a location is mediated by forward associations. This retrieval is gated by temporal context. The convergence of these two mechanisms allows selective retrieval of a single previous episode. (B) Entorhinal cortex layer III (ECIII) encodes and retrieves all prior sequences from a given input. Sustaine ...
File
... 26) The simplest animals to display cephalization and centralization of the nervous system are A) sponges. B) flatworms. C) cnidarians. D) echinoderms. Answer: B Topic: 28.10 Skill: Knowledge/Comprehension 27) The brain and sensory system of a bilaterally symmetric organism function most like A) th ...
... 26) The simplest animals to display cephalization and centralization of the nervous system are A) sponges. B) flatworms. C) cnidarians. D) echinoderms. Answer: B Topic: 28.10 Skill: Knowledge/Comprehension 27) The brain and sensory system of a bilaterally symmetric organism function most like A) th ...
An Integrative Theory on Prefrontal Cortex Function
... We assume that cues in the environment activate internal representations within the PFC that can select the appropriate action. This is important when the course of action is uncertain, and especially if one of the alternatives is stronger (i.e. more habitual or more salient) but produces the incorr ...
... We assume that cues in the environment activate internal representations within the PFC that can select the appropriate action. This is important when the course of action is uncertain, and especially if one of the alternatives is stronger (i.e. more habitual or more salient) but produces the incorr ...
File
... 26) The simplest animals to display cephalization and centralization of the nervous system are A) sponges. B) flatworms. C) cnidarians. D) echinoderms. Answer: B Topic: 28.10 Skill: Knowledge/Comprehension 27) The brain and sensory system of a bilaterally symmetric organism function most like A) th ...
... 26) The simplest animals to display cephalization and centralization of the nervous system are A) sponges. B) flatworms. C) cnidarians. D) echinoderms. Answer: B Topic: 28.10 Skill: Knowledge/Comprehension 27) The brain and sensory system of a bilaterally symmetric organism function most like A) th ...