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ch_12_lecture_presentation
ch_12_lecture_presentation

... An Introduction to the Nervous System • Learning Outcomes • 12-7 Describe the structure of a synapse, and explain the mechanism involved in synaptic activity. • 12-8 Describe the major types of neurotransmitters and neuromodulators, and discuss their effects on postsynaptic membranes. ...
Regulation or respiration2
Regulation or respiration2

... ventral group causes inspiration, whereas stimulation of others causes expiration. Therefore, these neurons contribute to both inspiration • and expiration. They are especially important in providing the powerful • expiratory signals to the abdominal muscles during very heavy expiration. Thus, this ...
WeinerEtalNIPS05
WeinerEtalNIPS05

... space; by examining the properties of such a function, it may be possible to determine the stimulus features that most strongly influence the responses of a cortical neuron. While this information is also implicitly incorporated into functional characterizations such as the STRF, it is much more exp ...
mechanisms of antihistamine-induced sedation in the human brain
mechanisms of antihistamine-induced sedation in the human brain

... 0.1 nA, respectively, were applied every 5 s. At the peak of the histamine-induced depolarization, the membrane potential was returned to the resting potential of -63 mV by injection of hyperpolarizing d.c. current. Expanded sweeps demonstrating the response of the neuron during control conditions ( ...
Slide 1 - Elsevier
Slide 1 - Elsevier

... junctions are on twitch muscle fibers that have voltage-sensitive sodium channels. The multiply innervated neuromuscular junctions are found on tonic muscle fibers that do not have regenerative potentials. Labeling of different axons with different colors was accomplished by activity-dependent fluor ...
Down - 서울대 Biointelligence lab
Down - 서울대 Biointelligence lab

... Fig. 5.15 (A) Estimate of mutual information between face stimuli and firing rate responses of C cells in the inferior-temporal cortex. The set of stimuli consisted 20 faces (stars). 8 faces (crosses), and 4 face(squares). (B) the information in the population of cells relative to the umber of stimu ...
Down - 서울대 Biointelligence lab
Down - 서울대 Biointelligence lab

... Fig. 5.15 (A) Estimate of mutual information between face stimuli and firing rate responses of C cells in the inferior-temporal cortex. The set of stimuli consisted 20 faces (stars). 8 faces (crosses), and 4 face(squares). (B) the information in the population of cells relative to the umber of stimu ...
Lecture 12b - Spinal Cord
Lecture 12b - Spinal Cord

... cord can stimulate “interneurons” that are part of the pain patway • Activity in interneurons leads to stimulation of primary sensory cortex, so an individual feels pain in specific part of body surface: – also called referred pain ...
ALS Pathway
ALS Pathway

... o Burning sensation when cold hands placed in warm water: polymodal nocireceptors that produce a burning feeling are normally suppressed by thermoreceptors active at ambient temperatures; when the temperature gets cold enough, these thermoreceptors are shut off and the nocireceptors can fire pain si ...
Lecture 12b - Spinal Cord
Lecture 12b - Spinal Cord

... cord can stimulate “interneurons” that are part of the pain patway •  Activity in interneurons leads to stimulation of primary sensory cortex, so an individual feels pain in specific part of body surface: –  also called referred pain ...
Deficiency of brain 5-HT synthesis but serotonergic neuron
Deficiency of brain 5-HT synthesis but serotonergic neuron

... Tph2 null mutant mice (Tph2-/-) are viable and do not show apparent increase in premature lethality during development or adulthood. Despite a tendency toward a lower body weight compared to their WT littermates, Tph2-/- mice do not display obvious developmental defects including overall brain struc ...
Neural Syntax: Cell Assemblies, Synapsembles, and
Neural Syntax: Cell Assemblies, Synapsembles, and

... would provide the basis by which complex cognitive processes, such as memory recall, thinking, planning, and decision making, could flow independently of direct control from the environment or the body (Churchland and Sejnowski, 1992; Harris, 2005; John, 1967; Kelso, 1997; Laurent, 1999; Palm, 1982; ...
CO2-pH
CO2-pH

... Leksrisawat, B., Cooper, A.S., Gilberts, A.B. and Cooper, R.L. (2010) Muscle Receptor Organs in the Crayfish Abdomen: A Student Laboratory Exercise in Proprioception. Journal of Visualized Experiments (JoVE). Jove. 45: http://www.jove.com/video/2323/muscle-receptor-organs-crayfishabdomen- student-la ...
and Third-Order Neurons of Cockroach Ocelli
and Third-Order Neurons of Cockroach Ocelli

... 30 mV to a bright step-stimulus given in the dark, whereas the hyperpolarizing response of third-order neurons is < ] 0 mV (Mizunami and Tateda, 1986); (b) membrane hyperpolarization by extrinsic current decreases the light-evoked response of second-order neurons but increases that of third-order ne ...
Complexity and coherency: integrating information in the brain
Complexity and coherency: integrating information in the brain

... that the rapid integration of information within the thalamocortical system does not occur in a particular location but rather in terms of a unified neural process. How can one establish the presence and the extent of such a process, and what kind of evidence should one look for in neurophysiologica ...
Motion perception: Seeing and deciding
Motion perception: Seeing and deciding

... obscure. We present neurophysiological data from the parietal lobe that may establish such a link between sensory representation and motor plan. The data were obtained while rhesus monkeys performed a two-alternative, forced choice discrimination of motion direction. Our ultimate goal is to understa ...
D:spinal motor neurons Kuwada.wpd
D:spinal motor neurons Kuwada.wpd

... (slow-nonfatigable), and intermediate (fastfatigue-resistant) motor units. These experiments also indicated a motor unit activates only one type of muscle fiber. If each motor unit contained several fiber types, contraction times would differ very little. Since there are large differences within a g ...
leukodystrophy - United Leukodystrophy Foundation
leukodystrophy - United Leukodystrophy Foundation

... (fatty molecules) and proteins. This protective sheath acts in a manner very similar to that of the protective insulation that surrounds an electric wire; that is, it is necessary for the rapid transmission of electrical signals between neurons. It does this primarily by containing the electrical mo ...
Jukic et al. SUPPLEMANTARY SUPLEMENTARY METHODS En1+/
Jukic et al. SUPPLEMANTARY SUPLEMENTARY METHODS En1+/

... peripheral processor connected to a personal computer. All transmitters were calibrated before surgery and at the completion of experimentation to ensure the validity of biotelemetry measurements. Locomotor activity was calculated as an hourly or daily average of the raw data, collected at 1 s inter ...
Neural Coding 2016
Neural Coding 2016

... bridging disciplines and introducing theoretical ideas and methods to neuroscience research. This concept of combining theoretical and experimental approaches has proven highly successful and nowadays plays a pivotal role in the modern neurosciences. Research in neural coding covers neural represent ...
Resonance Effect for Neural Spike Time Reliability
Resonance Effect for Neural Spike Time Reliability

... The DC component of the current injections ranged from 5 to 22 nA, generating firing frequencies ranging from 7 to 24 Hz. This firing rate range encompasses the upper end of the physiological range at which most buccal neurons fire during feeding behavior (Church and Lloyd 1994). Slower firing rates ...
Cells Born in Adult Canary Forebrain are Local Interneurons`
Cells Born in Adult Canary Forebrain are Local Interneurons`

... conditions such as sex, season, and time between thymidine treatment and HRP injection (see the last two columns in Table I). Methodological considerations suggest that even the few doublelabeled cells found may not all represent projection neurons born in adulthood. First, some of these cells may n ...
Theory of Mind: A Neural Prediction Problem
Theory of Mind: A Neural Prediction Problem

... empirical studies, Frith and Frith concluded that ‘‘Studies in which volunteers have to make inferences about the mental states of others activate a number of brain areas, most notable the medial [pre]frontal cortex [(MPFC)] and temporo-parietal junction [(TPJ)]’’ (Frith and Frith, 2000). Since then ...
Cell assemblies in the cerebral cortex Günther Palm, Andreas
Cell assemblies in the cerebral cortex Günther Palm, Andreas

... These and many other structural properties have been quantified in the following years in the mouse cortex, as well as in other species (For reviews see White 1989; Braitenberg and Schüz 1991, 1998; DeFelipe et al. 2002). These studies provided further support for the theory of cell assemblies; they ...
Human Physiology - Orange Coast College
Human Physiology - Orange Coast College

... Transmission in one direction only. Axon of first (presynaptic) to second (postsynaptic) neuron. Synaptic transmission is through a chemical gated channel. Presynaptic terminal (bouton) releases a ...
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Single-unit recording

In neuroscience, single-unit recordings provide a method of measuring the electro-physiological responses of single neurons using a microelectrode system. When a neuron generates an action potential, the signal propagates down the neuron as a current which flows in and out of the cell through excitable membrane regions in the soma and axon. A microelectrode is inserted into the brain, where it can record the rate of change in voltage with respect to time. These microelectrodes must be fine-tipped, high-impedance conductors; they are primarily glass micro-pipettes or metal microelectrodes made of platinum or tungsten. Microelectrodes can be carefully placed within (or close to) the cell membrane, allowing the ability to record intracellularly or extracellularly.Single-unit recordings are widely used in cognitive science, where it permits the analysis of human cognition and cortical mapping. This information can then be applied to brain machine interface (BMI) technologies for brain control of external devices.
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