Perception - U
... • This has led to the view that there is a special area in the brain for the recognition of faces and it is damaged in prospagnosics; the finding of neurons in inferotemporal cortices of monkeys that respond only to ...
... • This has led to the view that there is a special area in the brain for the recognition of faces and it is damaged in prospagnosics; the finding of neurons in inferotemporal cortices of monkeys that respond only to ...
Article - Dynamic Connectome Lab
... the layers above and below the soma, while the LFP magnitude is largest in the soma layer and decreases in the layers above and below the soma. The differences between the results for the L4 spiny stellate models are small, so we concentrate on the pyramidal neuron population results. For the L2/3 p ...
... the layers above and below the soma, while the LFP magnitude is largest in the soma layer and decreases in the layers above and below the soma. The differences between the results for the L4 spiny stellate models are small, so we concentrate on the pyramidal neuron population results. For the L2/3 p ...
The Action Potential
... opposite directions. This is called a "spatial sum".It can happen also that two successive stimuli, separated from each other by a very short interval of time, occur at the same point in the membrane.Then, before the local potential caused by the first stimulus returns to normal, the second stimulus ...
... opposite directions. This is called a "spatial sum".It can happen also that two successive stimuli, separated from each other by a very short interval of time, occur at the same point in the membrane.Then, before the local potential caused by the first stimulus returns to normal, the second stimulus ...
Building Functional Networks of Spiking Model Neurons
... that represent and process sensory information and generate motor acts communicate with each other almost exclusively through discrete action potentials. The use of spikes to represent, process and interpret continuous quantities and to generate smooth and precise motor acts is a challenge both for ...
... that represent and process sensory information and generate motor acts communicate with each other almost exclusively through discrete action potentials. The use of spikes to represent, process and interpret continuous quantities and to generate smooth and precise motor acts is a challenge both for ...
Cellular-synaptic generation of EEG activity
... combined with decreased distance between the recording sites are required for high spatial resolution and for making interpretation of the underlying cellular events possible. Progress in this field is expected to be accelerated by the availability of micromachined silicon-based probes with numerous ...
... combined with decreased distance between the recording sites are required for high spatial resolution and for making interpretation of the underlying cellular events possible. Progress in this field is expected to be accelerated by the availability of micromachined silicon-based probes with numerous ...
Texture discrimination and unit recordings in the rat
... animal’s nose to the discriminandum, although actual whisker contact is monitored by a SuperVHS camera and measured offline using fieldby-field videographic analysis. Rats can be trained within 3 – 6 weeks at which time they perform 100 – 150 trials/day at a level of 80% correct. Unit recording from ...
... animal’s nose to the discriminandum, although actual whisker contact is monitored by a SuperVHS camera and measured offline using fieldby-field videographic analysis. Rats can be trained within 3 – 6 weeks at which time they perform 100 – 150 trials/day at a level of 80% correct. Unit recording from ...
Document
... Motor Unit • A motor unit consists of a motor neuron and all the muscle fibers it innervates • Three types of motor units (muscles): • Fast fatigable (FF) Powerful, but fatigue with repetitive stimulation muscle fiber: thick, large, white (anaerobic, use glycolytic pathway to generate ATP) Motor ne ...
... Motor Unit • A motor unit consists of a motor neuron and all the muscle fibers it innervates • Three types of motor units (muscles): • Fast fatigable (FF) Powerful, but fatigue with repetitive stimulation muscle fiber: thick, large, white (anaerobic, use glycolytic pathway to generate ATP) Motor ne ...
Future of Optogenetics: Potential Clinical Applications?
... positive result in performing various research projects using optogenetics. The required parameters and modes of the light beam need to be changed according to the purpose of the experiments. In one of the first technical reports (Boyden et al., 2005) was demonstrated reliable, millisecondtimescale ...
... positive result in performing various research projects using optogenetics. The required parameters and modes of the light beam need to be changed according to the purpose of the experiments. In one of the first technical reports (Boyden et al., 2005) was demonstrated reliable, millisecondtimescale ...
motor systems
... Control of voluntary movement involves much of the cerebral cortex anterior to the central sulcus. In addition to the classically described primary motor cortex (M1) and supplementary motor area (SMA), a number of separately identifiable motor areas are found in the premotor cortex anterior to M1 an ...
... Control of voluntary movement involves much of the cerebral cortex anterior to the central sulcus. In addition to the classically described primary motor cortex (M1) and supplementary motor area (SMA), a number of separately identifiable motor areas are found in the premotor cortex anterior to M1 an ...
CHAPTER 10: NERVOUS SYSTEM I
... An NI is similar to a row of dominos falling (i.e. once the first domino falls, the entire row will fall). ...
... An NI is similar to a row of dominos falling (i.e. once the first domino falls, the entire row will fall). ...
Neural coding of behavioral relevance in parietal cortex
... effects of attention Spatial attention confers a variety of behavioral advantages, such as decreased reaction time in visual detection tasks [24–26]. A challenging issue has been to understand how attentional modulation of neural activity could give rise to the behavioral effects of attention. Cook ...
... effects of attention Spatial attention confers a variety of behavioral advantages, such as decreased reaction time in visual detection tasks [24–26]. A challenging issue has been to understand how attentional modulation of neural activity could give rise to the behavioral effects of attention. Cook ...
Vocal communication in frogs
... acoustic stimulus to produce spike trains. (a) An effective train of 9 pulses, (b) two ineffective trains of 8 pulses and (c) a train of 8 pulses followed by a train of 9 pulses; only the latter is effective. The inter-pulse interval was 10 ms and the inter-train interval was 20 ms. Used with permis ...
... acoustic stimulus to produce spike trains. (a) An effective train of 9 pulses, (b) two ineffective trains of 8 pulses and (c) a train of 8 pulses followed by a train of 9 pulses; only the latter is effective. The inter-pulse interval was 10 ms and the inter-train interval was 20 ms. Used with permis ...
Integrated model of visual processing
... computation is impossible when it requires combining neurons with selectivities to different attributes like movement direction, depth, color, shape etc . . . . One way to achieve this combination is by exchanging information between neurons in higher order areas coding for different attributes. How ...
... computation is impossible when it requires combining neurons with selectivities to different attributes like movement direction, depth, color, shape etc . . . . One way to achieve this combination is by exchanging information between neurons in higher order areas coding for different attributes. How ...
slides
... • The AER communication protocol emulates massive connectivity between cells by time-multiplexing many connections on the same data bus. • For a one-to-one connection topology, the required number of wires is reduced from N to ∼ log2 N . • Each spike is represented by: ◦ Its location: explicitly enc ...
... • The AER communication protocol emulates massive connectivity between cells by time-multiplexing many connections on the same data bus. • For a one-to-one connection topology, the required number of wires is reduced from N to ∼ log2 N . • Each spike is represented by: ◦ Its location: explicitly enc ...
Surround suppression explained by long-range
... regardless of SSN membership. This architecture is known to exist in rodent visual cortex37, 39, 46, 55, 56 , but has not been examined experimentally or computationally in columnar visual cortex. In this paper we refer to this form of specificity as SSN-specific connectivity. SSN-specificity in our ...
... regardless of SSN membership. This architecture is known to exist in rodent visual cortex37, 39, 46, 55, 56 , but has not been examined experimentally or computationally in columnar visual cortex. In this paper we refer to this form of specificity as SSN-specific connectivity. SSN-specificity in our ...
Optimal decision making theories - Bristol CS
... occluded by the leaves), and hence need to be accumulated over time to gain sufficient accuracy, but the speed of such choices is also of critical importance. Due to the noisy nature of the sensory information, such decisions can be considered as statistical problems. This chapter reviews theories a ...
... occluded by the leaves), and hence need to be accumulated over time to gain sufficient accuracy, but the speed of such choices is also of critical importance. Due to the noisy nature of the sensory information, such decisions can be considered as statistical problems. This chapter reviews theories a ...
The auditory pathway: Levels of integration of information and
... This paper addresses anatomical, physiological and neurochemical aspects of the central auditory pathway (CAP), from the inner ear, the brainstem and the thalamus to the temporal auditory cortex AC). The characteristics of the spiral ganglion of Corti (SGC), the auditory nerve (AN), the cochlear nuc ...
... This paper addresses anatomical, physiological and neurochemical aspects of the central auditory pathway (CAP), from the inner ear, the brainstem and the thalamus to the temporal auditory cortex AC). The characteristics of the spiral ganglion of Corti (SGC), the auditory nerve (AN), the cochlear nuc ...