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Golgi: a life in science - Oxford Academic
Golgi: a life in science - Oxford Academic

... staining nervous tissue yielded an incomplete picture. The painstaking work of Otto Friedrich Karl Deiters [(1834–63); 1865] had demonstrated the continuity between the nerve cell and its dendrites and axon, but his work involved tedious dissection of hardened tissue, and was most feasible for spina ...
a14b NeuroPhysII
a14b NeuroPhysII

... (a) In a bare plasma membrane (without voltage-gated channels), as on a dendrite, voltage decays because current leaks across the membrane. Voltage-gated Stimulus ion channel ...
A cognitive neuroscience account of posttraumatic stress disorder
A cognitive neuroscience account of posttraumatic stress disorder

... knowledge base, so that the trauma is represented within a complete personal context comprising past, present, and future. They contain information that the individual has attended to before, during, and after the traumatic event, and that received sufficient conscious processing to be transferred t ...
Sherman_PPT_Chapter2
Sherman_PPT_Chapter2

... Neurons: Basic Cells of the Nervous System • Because a neural signal is sent from one neuron to the next through the terminal buttons of the axons, the most common arrangement is for a neuron’s terminal buttons to be near, but not touching, the receptive dendrites of neighboring neurons. • The memb ...
The Neurobiology of Opioid Dependence
The Neurobiology of Opioid Dependence

... oid is needed to produce pleasure comparable to that provided in previous drug-taking episodes. Opioid dependence and some of the most dis­ tressing opioid withdrawal symptoms stem from changes in another important brain system, involving an area at the base of the brain—the locus ceruleus (LC) (Fig ...
Group Redundancy Measures Reveal Redundancy Reduction in the
Group Redundancy Measures Reveal Redundancy Reduction in the

... representing more and more complex aspects of sensory inputs. The changes in representations of stimuli along the sensory pathway reflect the information processing performed by the system. Several computational principles that govern these changes were suggested, such as information maximization an ...
Electric Cures - Bioelectronic Medicine could create an `off switch` for
Electric Cures - Bioelectronic Medicine could create an `off switch` for

... had potentially profound implications for understanding the body’s defense mechanisms against infection and injury. I theorized that reflex neural circuits controlling immunity would maintain health-promoting processes—as op­­posed to disease-triggering inflammation—by preventing the toxic re­­ lea ...
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Chapter_02 Edited

... Action Potential – An electric nerve impulse that travels through a neuron, changing the cell’s charge from negative to positive ...
Emergence of new signal-primitives in neural systems
Emergence of new signal-primitives in neural systems

... Neural networks that increase their effective dimensionalities can be envisioned. Some kinds of neural codes, such as temporal pattern and time-of-arrival codes, permit encoding and transmission of multidimensional information by the same elements (multiplexing). We outline how synchronous time-divi ...
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Neural Correlates Underlying Action-intention and Aim-intention  Mauro Adenzato () Cristina Becchio
Neural Correlates Underlying Action-intention and Aim-intention Mauro Adenzato () Cristina Becchio

... (we-) intention to have lunch together, their we-intention (amounting to a joint intention when considered collectively) is a we-mode aim-intention. I-mode means acting and having an attitude privately, as a private person, whereas we-mode means having it as a group ...
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Processing limits of selective attention and working

... Massaro, 1975). Baddeley (2000, 2001) also has supplemented his system recently with an episodic buffer, which stores links between materials that do not fit cleanly into either the phonological buffer or the visuospatial buffer. This episodic buffer appears to serve much the same purpose as the focus of ...
Dendritic Morphology of Pyramidal Neurons in the
Dendritic Morphology of Pyramidal Neurons in the

... used a nested ANOVA design (IBM SPSS 18.0), in which each neuron was nested within region (areas 3b, 4, 10, and 18), which was nested within individual brain. We did not consider sex differences in the analysis because of the relatively small sample size (2 females, 5 males). Pairwise contrasts were ...
Dynamics  of  Learning  and  Recall ... Recurrent  Synapses and  Cholinergic Modulation
Dynamics of Learning and Recall ... Recurrent Synapses and Cholinergic Modulation

... passive decay of membrane potential proportional to the difference from resting potential, [a - 01, is a threshold linear output function of membrane potential, with zero output for values below 8. W represents the matrix of excitatory synapses arising from cortical pyramidal cells, and H represents ...
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... D) opponent-process cell. 63. When admiring the texture of a piece of fabric, Calvin usually runs his fingertips over the cloth's surface. He does this because: A) if the cloth were held motionless, sensory adaptation to its feel would quickly occur. B) the sense of touch does not adapt. C) a relati ...
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... – Essential for declarative memory – Without the hippocampus only the learning of skills and habits, simple conditioning, and the phenomenon of priming can occur ...
Coefficient of Variation (CV) vs Mean Interspike Interval (ISI) curves
Coefficient of Variation (CV) vs Mean Interspike Interval (ISI) curves

... Stevens and Zador [19] illustrated experimentally that uncorrelated inputs to neurons do not account for the high firing variability but temporally correlated ones do. This was also confirmed by modelling by Sakai et al. [13] and analytically and numerically by Feng and Brown [10]. Stevens and Zador ...
A novel neuroprosthetic interface with the peripheral nervous system
A novel neuroprosthetic interface with the peripheral nervous system

... approach, which entirely avoids the risks associated with surgery, patients have demonstrated the ability to perform such tasks as cursor manipulation and even basic word processing. However, the poor information transfer rates associated with this technique makes its translation to the control of m ...
BIOFEEDBACK AND YOGA
BIOFEEDBACK AND YOGA

... a sudden awareness of imagery that seemed to spring from the unconscious, but their experiences were generally integrative rather than unpleasant. The Swami's theta experience implied to us that practicing the disciplines of yoga in his guru's cave monastery had involved a considerable amount of rep ...
Spinogenesis and pruning in the primary auditory
Spinogenesis and pruning in the primary auditory

Irregular persistent activity induced by synaptic excitatory feedback
Irregular persistent activity induced by synaptic excitatory feedback

... a highly irregular fashion in all periods of the task. The average CV is close to one in the baseline period, and is higher than 1 in the delay period, both for preferred and non-preferred stimuli. Most models of working memory in recurrent neuronal circuits (reviewed in Brunel, 2004) generate persi ...
Fast Readout of Object Identity from Macaque Inferior Temporal Cortex
Fast Readout of Object Identity from Macaque Inferior Temporal Cortex

... constitutes a lower bound on the information available in the population activity, but is a meaningful measure that could be directly implemented by neuronal hardware. We used the classifier approach to determine the ability of more than 300 sequentially collected IT sites from two passively fixatin ...
The amygdala, a part of the brain known for its role in fear, also
The amygdala, a part of the brain known for its role in fear, also

... Monkeys without a working amygdala, actions along with their choices. NorBut the same stimulus, depending on the circumstances, can be rewarding or not, however, show little change in behavior mal monkeys did, choosing a new action Salzman explains. He uses an example and continue to stuff themselve ...
ARTICLE  IN  PRESS Neural Networks entorhinal cortex
ARTICLE IN PRESS Neural Networks entorhinal cortex

... A potential difficulty for implementing a phase code with membrane potential oscillations concerns the tendency for oscillations within different parts of a single neuron to synchronize, as shown in computational studies (Remme, Lengyel, & Gutkin, 2007). Previous models have proposed that the relati ...
Axon - Cloudfront.net
Axon - Cloudfront.net

... generating and propagating ACTION POTENTIALS (AP).  Only cells with excitable membranes (like muscle cells and neurons) can generate APs. ...
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Holonomic brain theory

The holonomic brain theory, developed by neuroscientist Karl Pribram initially in collaboration with physicist David Bohm, is a model of human cognition that describes the brain as a holographic storage network. Pribram suggests these processes involve electric oscillations in the brain's fine-fibered dendritic webs, which are different from the more commonly known action potentials involving axons and synapses. These oscillations are waves and create wave interference patterns in which memory is encoded naturally, and the waves may be analyzed by a Fourier transform. Gabor, Pribram and others noted the similarities between these brain processes and the storage of information in a hologram, which can also be analyzed with a Fourier transform. In a hologram, any part of the hologram with sufficient size contains the whole of the stored information. In this theory, a piece of a long-term memory is similarly distributed over a dendritic arbor so that each part of the dendritic network contains all the information stored over the entire network. This model allows for important aspects of human consciousness, including the fast associative memory that allows for connections between different pieces of stored information and the non-locality of memory storage (a specific memory is not stored in a specific location, i.e. a certain neuron).
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