Behavioral and Cognitive Neuroscience
... tell us something about anatomical connections in the brains of extinct mammals. Unfortunately, little of the brain’s great internal complexity is revealed by its size, shape, and fissures. Thus, to learn more about brain evolution, it is necessary to study the brains of extant (present-day) species ...
... tell us something about anatomical connections in the brains of extinct mammals. Unfortunately, little of the brain’s great internal complexity is revealed by its size, shape, and fissures. Thus, to learn more about brain evolution, it is necessary to study the brains of extant (present-day) species ...
Speed, noise, information and the graded nature of neuronal
... sense intuition, are based on noiseless binary variables. Deviations from this idealized case have opposite effects: noise always reduces information transmission, whereas a more graded response enhances it. The net effect depends on the time the neuron’s activity is sampled for. We discuss here how ...
... sense intuition, are based on noiseless binary variables. Deviations from this idealized case have opposite effects: noise always reduces information transmission, whereas a more graded response enhances it. The net effect depends on the time the neuron’s activity is sampled for. We discuss here how ...
How Is the Brain Organized?
... connective tissue that follows the brain’s contours. The inner layer is the pia mater (from Latin, meaning “soft mother”). It is a moderately tough membrane of connectivetissue fibers that cling to the surface of the brain. Between the arachnoid and pia mater is a fluid, known as cerebrospinal fluid ...
... connective tissue that follows the brain’s contours. The inner layer is the pia mater (from Latin, meaning “soft mother”). It is a moderately tough membrane of connectivetissue fibers that cling to the surface of the brain. Between the arachnoid and pia mater is a fluid, known as cerebrospinal fluid ...
Feeding in an Artificial Insect
... reactive. The response of an animal to food, for example, cannot be explained only in terms of the physical stimuli involved. On two different occasions, the very same animal may behave in completely different ways when presented with seemingly identical pieces of food (e.g. hungrily consuming it in ...
... reactive. The response of an animal to food, for example, cannot be explained only in terms of the physical stimuli involved. On two different occasions, the very same animal may behave in completely different ways when presented with seemingly identical pieces of food (e.g. hungrily consuming it in ...
Theory of Arachnid Prey Localization
... we can predict is a probability density. The response is a set of stimulus-locked action potentials (or spikes) [2,5]. For each Rayleigh wave maximum, there is at most one spike per neuron that is transported to a ring-shaped structure [13] in the suboesophageal ganglion (SOG), where the axons from ...
... we can predict is a probability density. The response is a set of stimulus-locked action potentials (or spikes) [2,5]. For each Rayleigh wave maximum, there is at most one spike per neuron that is transported to a ring-shaped structure [13] in the suboesophageal ganglion (SOG), where the axons from ...
The Cat is Out of the Bag: Cortical Simulations with 109 Neurons
... cortical sheet. It has been suggested that layer 4 serves as the main cortical input layer, relaying information to layers 2 and 3, which in turn transfer activity to layers 5 and 6 where it is then sent out of cortex, with connections within each layer facilitating information processing along the ...
... cortical sheet. It has been suggested that layer 4 serves as the main cortical input layer, relaying information to layers 2 and 3, which in turn transfer activity to layers 5 and 6 where it is then sent out of cortex, with connections within each layer facilitating information processing along the ...
An Integrate-and-fire Model of Prefrontal Cortex Neuronal Activity during Performance of Goal-directed
... perceptual processing circuitry receives those spike trains and transforms them into reliable sequences of state--action spike pairs (bottom of Fig. 2). Every time that a spike train corresponding to a new state or a new motor action is detected, a pair of spikes is generated that represents the mos ...
... perceptual processing circuitry receives those spike trains and transforms them into reliable sequences of state--action spike pairs (bottom of Fig. 2). Every time that a spike train corresponding to a new state or a new motor action is detected, a pair of spikes is generated that represents the mos ...
TOWARDS AN "EARLY NEURAL CIRCUIT SIMULATOR": A FPGA
... sensing. The purpose of this system is to examine the possibility that rats are using gradients of radial distance across the array to make predictions about the environment while moving. This prediction could be a component of a feed-forward signal to guide the rat’s navigation behavior. The use of ...
... sensing. The purpose of this system is to examine the possibility that rats are using gradients of radial distance across the array to make predictions about the environment while moving. This prediction could be a component of a feed-forward signal to guide the rat’s navigation behavior. The use of ...
Pain
... avoidance of potentially harmful situations and possible injury. Immobility and withdrawal due to pain may serve to provide an environment in which healing and restoration of function can occur. ...
... avoidance of potentially harmful situations and possible injury. Immobility and withdrawal due to pain may serve to provide an environment in which healing and restoration of function can occur. ...
Computational principles underlying recognition
... Boyan 1992, 1999). Local neurons perform first processing steps and then transmit their messages to a rather large number of ascending neurons (so far around 15–20 different types have been identified, see Römer and Marquart 1984; Stumpner 1988; Stumpner and Ronacher 1991, 1994). The ascending neuro ...
... Boyan 1992, 1999). Local neurons perform first processing steps and then transmit their messages to a rather large number of ascending neurons (so far around 15–20 different types have been identified, see Römer and Marquart 1984; Stumpner 1988; Stumpner and Ronacher 1991, 1994). The ascending neuro ...
High baseline activity in inferior temporal cortex
... studies have changed the traditional view in which the baseline activity was considered noise. However, these human studies do not provide any direct information about the correlation of the baseline activity of single neurons and the behavior. Furthermore, it is not clear how the “oscillation” and ...
... studies have changed the traditional view in which the baseline activity was considered noise. However, these human studies do not provide any direct information about the correlation of the baseline activity of single neurons and the behavior. Furthermore, it is not clear how the “oscillation” and ...
Memory - Sinauer Associates
... Multiple brain regions are involved in encoding, as shown by fMRI. For recalling pictures, the right prefrontal cortex and parahippocampal cortex in both hemispheres are activated. ...
... Multiple brain regions are involved in encoding, as shown by fMRI. For recalling pictures, the right prefrontal cortex and parahippocampal cortex in both hemispheres are activated. ...
by David Zimmerman The ultimate in nerve regeneration
... bysiein iieuroiitj usuaiiy are no more su^v_essrui in regenerating than is the goldfish M-cell. Scar tissue, which may include glial cells that normally provide structural and metabolic support for the axons, might block regrowth. In a very recent experiment, G u t h and his University of Maryland c ...
... bysiein iieuroiitj usuaiiy are no more su^v_essrui in regenerating than is the goldfish M-cell. Scar tissue, which may include glial cells that normally provide structural and metabolic support for the axons, might block regrowth. In a very recent experiment, G u t h and his University of Maryland c ...
Optical recording of electrical activity in intact neuronal networks
... 15 September 2008 / Vol. 16, No. 19 / OPTICS EXPRESS 14910 ...
... 15 September 2008 / Vol. 16, No. 19 / OPTICS EXPRESS 14910 ...
FlyEM`s formal project plan
... three months and only stop when the sample imaging has been completed. This required addressing a variety of interrupt issues: ion source reheat, utility failure (water, power, air, and temperature fluctuation), and microscope failure (focus, electrical, software, vacuum). With improvements and back ...
... three months and only stop when the sample imaging has been completed. This required addressing a variety of interrupt issues: ion source reheat, utility failure (water, power, air, and temperature fluctuation), and microscope failure (focus, electrical, software, vacuum). With improvements and back ...
Chapter 2: The synapse – regulating communication and
... the receptors binds (two molecules per receptor) and triggers a conformational change so that the receptor opens a water-filled pore, or channel, that spans the muscle membrane. This receptor channel is different from the voltage-gated channels involved in the action potential because it is permeab ...
... the receptors binds (two molecules per receptor) and triggers a conformational change so that the receptor opens a water-filled pore, or channel, that spans the muscle membrane. This receptor channel is different from the voltage-gated channels involved in the action potential because it is permeab ...
On-line, voluntary control of human temporal lobe
... Daily life continually confronts us with an exuberance of external, sensory stimuli competing with a rich stream of internal deliberations, plans and ruminations. The brain must select one or more of these for further processing. How this competition is resolved across multiple sensory and cognitive ...
... Daily life continually confronts us with an exuberance of external, sensory stimuli competing with a rich stream of internal deliberations, plans and ruminations. The brain must select one or more of these for further processing. How this competition is resolved across multiple sensory and cognitive ...
Neurons of human nucleus accumbens
... consequent darker appearance of nucleus accumbens. The presented details in the staining sensitivity or selectivity, together with the obvious cytoarchitectural differences and lower impregnation quality of some parts of septal region, may be Golgi-dependent characteristics observed in these regions ...
... consequent darker appearance of nucleus accumbens. The presented details in the staining sensitivity or selectivity, together with the obvious cytoarchitectural differences and lower impregnation quality of some parts of septal region, may be Golgi-dependent characteristics observed in these regions ...
Dear Notetaker:
... o In the retina and LGN there are neurons that are classified as M-like, P-like, or K-like with different anatomical features and functions o In V1 the info from P, K, and M cells is recombined, it does not stay segregated o The recombined info is sent to extra striate areas for even more processing ...
... o In the retina and LGN there are neurons that are classified as M-like, P-like, or K-like with different anatomical features and functions o In V1 the info from P, K, and M cells is recombined, it does not stay segregated o The recombined info is sent to extra striate areas for even more processing ...
Abstract
... been suggested that as the dimensionality increases, the sample size needs to increase exponentially in order to have an effective estimate of multivariate densities. Dimensionality reduction is a very important step which will greatly improve the performance of the face recognition system. In this ...
... been suggested that as the dimensionality increases, the sample size needs to increase exponentially in order to have an effective estimate of multivariate densities. Dimensionality reduction is a very important step which will greatly improve the performance of the face recognition system. In this ...
Huber et al. (2008), Sparse optical microstimulation in barrel cortex
... experiments in brain slices revealed that the brightness of ChR2–GFP measured in individual cells was inversely correlated with firing threshold (Supplementary Fig. 2); in contrast, the firing threshold was independent of the depth of the recorded neuron in vivo (Supplementary Fig. 3). The variabili ...
... experiments in brain slices revealed that the brightness of ChR2–GFP measured in individual cells was inversely correlated with firing threshold (Supplementary Fig. 2); in contrast, the firing threshold was independent of the depth of the recorded neuron in vivo (Supplementary Fig. 3). The variabili ...
The horizontal brain slice preparation: a novel approach for
... All experimental protocols have been approved by the University of Wyoming’s Institutional Animal Care and Use Committee (IACUC). Xenopus laevis tadpoles were reared in Steinberg’s solution at 25°C on a 12:12-h light-dark schedule. Tadpoles were staged according to the developmental table described ...
... All experimental protocols have been approved by the University of Wyoming’s Institutional Animal Care and Use Committee (IACUC). Xenopus laevis tadpoles were reared in Steinberg’s solution at 25°C on a 12:12-h light-dark schedule. Tadpoles were staged according to the developmental table described ...
Brain Electrical Activity During Waking and Sleep States
... produced activation of the EEG (low voltage fast electrical activity, or LFA), an effect evoked by stimulation of the central core of the brainstem in a region extending upward from the bulbar RF to the mesodiencephalic junction, the dorsal hypothalamus, and the ventral thalamus. In many features t ...
... produced activation of the EEG (low voltage fast electrical activity, or LFA), an effect evoked by stimulation of the central core of the brainstem in a region extending upward from the bulbar RF to the mesodiencephalic junction, the dorsal hypothalamus, and the ventral thalamus. In many features t ...
