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... visual hallucinations in healthy individuals by presenting them with four visual stimuli namely retinotopy cross (RTX), hallucination fan (HCF), retinotopy circle (RTC) and hallucination circle (HCC). HCF and HCC were in rotary motion about their axis while RTC and RTX were stationary. The activatio ...
... visual hallucinations in healthy individuals by presenting them with four visual stimuli namely retinotopy cross (RTX), hallucination fan (HCF), retinotopy circle (RTC) and hallucination circle (HCC). HCF and HCC were in rotary motion about their axis while RTC and RTX were stationary. The activatio ...
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... • Midbrain – most superior part of brain stem – Sensory and motor impulses – Vision, hearing, motor, temperature, sleep cycle ...
... • Midbrain – most superior part of brain stem – Sensory and motor impulses – Vision, hearing, motor, temperature, sleep cycle ...
Visual areas and spatial summation in human visual cortex
... The data in Figs. 1– 3 are combined from three or more separate scans for each subject. In general, more averaging is required to identify the dorsal area boundaries than those between V1 and V2, which can be found in nearly every subject and every scan. The difference in our ability to mark the bou ...
... The data in Figs. 1– 3 are combined from three or more separate scans for each subject. In general, more averaging is required to identify the dorsal area boundaries than those between V1 and V2, which can be found in nearly every subject and every scan. The difference in our ability to mark the bou ...
12 - Mrs. Jensen's Science Classroom
... object-recall tasks Solving complex, multitask problems ...
... object-recall tasks Solving complex, multitask problems ...
Nineteen
... Anterolateral system Dorsal horn of spinal gray matter Ventral white "commissure" of cord ...
... Anterolateral system Dorsal horn of spinal gray matter Ventral white "commissure" of cord ...
How Do Neurons Convey Information?
... Electricity is a flow of electrons from a body that contains a higher charge (more electrons) to a body that contains a lower charge (fewer electrons). The body with the higher electrical charge is called the negative pole, because electrons are negatively charged and this body has more of them. The ...
... Electricity is a flow of electrons from a body that contains a higher charge (more electrons) to a body that contains a lower charge (fewer electrons). The body with the higher electrical charge is called the negative pole, because electrons are negatively charged and this body has more of them. The ...
Sensory responses and movement-related activities in extrinsic
... sequences of grooming, and then began to explore the surroundings. Any animal that failed to show spontaneous locomotion, grooming, and escape from tactile or wind stimuli applied to their cerci was not used for unit recordings. To record unit activities, all of the four to six wires were connected ...
... sequences of grooming, and then began to explore the surroundings. Any animal that failed to show spontaneous locomotion, grooming, and escape from tactile or wind stimuli applied to their cerci was not used for unit recordings. To record unit activities, all of the four to six wires were connected ...
Neuronal basis of contrast discrimination
... sessions to obtain the average reference phase. Finally, the fMRI response was calculated by projecting the vector mean onto a unit vector with the average reference phase. Assuming that the noise in our measurements has random phase, the resulting fMRI response is an unbiased estimate of the true ( ...
... sessions to obtain the average reference phase. Finally, the fMRI response was calculated by projecting the vector mean onto a unit vector with the average reference phase. Assuming that the noise in our measurements has random phase, the resulting fMRI response is an unbiased estimate of the true ( ...
xiao-ying-lu-southeast-university
... The function of choosing different electrodes is performed by the shift registers and the conversion of the parallel data from recording channels to serial data is processed by the multiplex circuits. All aforementioned modules fulfill the design requirements. ...
... The function of choosing different electrodes is performed by the shift registers and the conversion of the parallel data from recording channels to serial data is processed by the multiplex circuits. All aforementioned modules fulfill the design requirements. ...
Playing the electric light orchestra—how electrical stimulation of
... (i) Electrical stimulation of area V1 in humans Cortical surface stimulation of the human occipital pole in the region of the calcarine fissure, the location of area V1 and other early visual areas, results in the sensation of light, called a phosphene [21–28], described as ‘like a star in the sky’ ...
... (i) Electrical stimulation of area V1 in humans Cortical surface stimulation of the human occipital pole in the region of the calcarine fissure, the location of area V1 and other early visual areas, results in the sensation of light, called a phosphene [21–28], described as ‘like a star in the sky’ ...
attention - CMU Graphics
... How does the brain deal with conflicting signals? ● Attended stimulus suppresses the unattended stimuli in the same RF by increasing contrast of attended ...
... How does the brain deal with conflicting signals? ● Attended stimulus suppresses the unattended stimuli in the same RF by increasing contrast of attended ...
PART IV INTEGRATION AND COORDINATION IN HUMANS
... The cerebral cortex is a thin layer of gray matter covering the cerebrum. The primary motor area in the frontal lobe sends out motor commands to lower brain centers that pass them on to motor neurons. The primary somatosensory area in the parietal lobe receives sensory information from lower brain ...
... The cerebral cortex is a thin layer of gray matter covering the cerebrum. The primary motor area in the frontal lobe sends out motor commands to lower brain centers that pass them on to motor neurons. The primary somatosensory area in the parietal lobe receives sensory information from lower brain ...
13 Nervous System
... The cerebral cortex is a thin layer of gray matter covering the cerebrum. The primary motor area in the frontal lobe sends out motor commands to lower brain centers that pass them on to motor neurons. The primary somatosensory area in the parietal lobe receives sensory information from lower brain ...
... The cerebral cortex is a thin layer of gray matter covering the cerebrum. The primary motor area in the frontal lobe sends out motor commands to lower brain centers that pass them on to motor neurons. The primary somatosensory area in the parietal lobe receives sensory information from lower brain ...
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... a variety of techniques for activating neuronal tissue. Widely used stimulation modalities include deep brain stimulation (DBS), optogenetics, transcranial magnetic stimulation (TMS), intracellular electrical stimulation, and extracellular electrical stimulation. Some activation modalities are inher ...
... a variety of techniques for activating neuronal tissue. Widely used stimulation modalities include deep brain stimulation (DBS), optogenetics, transcranial magnetic stimulation (TMS), intracellular electrical stimulation, and extracellular electrical stimulation. Some activation modalities are inher ...
Methods of Studying The Nervous System
... • A subset of evoked potentials are event-related potentials (ERPs), which are time-locked evoked potentials, meaning that the EEG in response to an event is always measured during a specific interval of time • For example: an ERP of P300 (positive amplitude at 300 miliseconds) always occurs when a ...
... • A subset of evoked potentials are event-related potentials (ERPs), which are time-locked evoked potentials, meaning that the EEG in response to an event is always measured during a specific interval of time • For example: an ERP of P300 (positive amplitude at 300 miliseconds) always occurs when a ...
Do neurons have a reserve of sodium channels for the generation of
... remarkable surplus of sodium channels. The surplus, however, is necessary for repetitive action potential ®ring, as every decrease in the fraction of sodium channels reduces the maximal frequency of action potentials that can be generated by the neuron. ...
... remarkable surplus of sodium channels. The surplus, however, is necessary for repetitive action potential ®ring, as every decrease in the fraction of sodium channels reduces the maximal frequency of action potentials that can be generated by the neuron. ...
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... region of the sensory epithelium, the regions of the cortical map that respond to task-specific inputs are enlarged (Jenkins et al., 1990; Recanzone et al., 1992b; Recanzone et al., 1993; Elbert et al., 1995; Sterr et al., 1998). Depending on the spatial and temporal pattern of sensory activation en ...
... region of the sensory epithelium, the regions of the cortical map that respond to task-specific inputs are enlarged (Jenkins et al., 1990; Recanzone et al., 1992b; Recanzone et al., 1993; Elbert et al., 1995; Sterr et al., 1998). Depending on the spatial and temporal pattern of sensory activation en ...
Swallowing reflex and brain stem neurons activated by superior
... lated with the cytoarchitectural characteristics as defined by cresyl violet staining and nNOS staining. From a coronal perspective, Sol is broadly divided into a smaller lateral and a larger medial subdivision based on their position in relation to the SolT. The lateral subdivision is further subdi ...
... lated with the cytoarchitectural characteristics as defined by cresyl violet staining and nNOS staining. From a coronal perspective, Sol is broadly divided into a smaller lateral and a larger medial subdivision based on their position in relation to the SolT. The lateral subdivision is further subdi ...
Dynamics of Propofol-Induced Loss of Consciousness Across
... from wakefulness to unconsciousness is not a continuous process, but rather a series of discrete neural changes. Key words: general anesthesia; local field potential; loss of consciousness; primate; sensory premotor network; single-neuron activity ...
... from wakefulness to unconsciousness is not a continuous process, but rather a series of discrete neural changes. Key words: general anesthesia; local field potential; loss of consciousness; primate; sensory premotor network; single-neuron activity ...
CLASSICAL AND INSTRUMENTAL CONDITIONING: THE
... reflexes (Fig. 4, right). My present concept concerning instrumental conditioning is basically similar to that proposed by these authors, except that it emphasizes the "direct" connections being formed between the CS center and the kinesthetic center programming the instrumental movement. The latter ...
... reflexes (Fig. 4, right). My present concept concerning instrumental conditioning is basically similar to that proposed by these authors, except that it emphasizes the "direct" connections being formed between the CS center and the kinesthetic center programming the instrumental movement. The latter ...
Lemniscal recurrent and transcortical influences on
... presumed recurrent spikes. These short-latency spikes could be blocked in five CL cells in which they had precisely the same threshold as the antidromic responses. This procedure was not necessary either for the CL cells showing different thresholds for both responses or for the nCL neurons since, i ...
... presumed recurrent spikes. These short-latency spikes could be blocked in five CL cells in which they had precisely the same threshold as the antidromic responses. This procedure was not necessary either for the CL cells showing different thresholds for both responses or for the nCL neurons since, i ...
Techniques of Dental Local Anesthesia
... Plexus anesthesia - injection of local anesthetic in the vicinity of a nerve plexus, often inside a tissue compartment that limits the diffusion of the drug away from the intended site of action. The anesthetic effect extends to the innervation areas of several or all nerves stemming from the plexus ...
... Plexus anesthesia - injection of local anesthetic in the vicinity of a nerve plexus, often inside a tissue compartment that limits the diffusion of the drug away from the intended site of action. The anesthetic effect extends to the innervation areas of several or all nerves stemming from the plexus ...
14 MOTOR NUCLEUS OF CRANIAL NERVE VII (MOTOR VII)
... I touched on some of the connections and functions of the cerebellum when discussing the accessory cuneate nucleus (POINT #5) and the inferior olivary complex (POINT # 6). There will also be several lectures on the cerebellum. Right now, you need to know that CORTICOPONTINE fibers convey information ...
... I touched on some of the connections and functions of the cerebellum when discussing the accessory cuneate nucleus (POINT #5) and the inferior olivary complex (POINT # 6). There will also be several lectures on the cerebellum. Right now, you need to know that CORTICOPONTINE fibers convey information ...
Adverse effects
... Plexus anesthesia - injection of local anesthetic in the vicinity of a nerve plexus, often inside a tissue compartment that limits the diffusion of the drug away from the intended site of action. The anesthetic effect extends to the innervation areas of several or all nerves stemming from the plexus ...
... Plexus anesthesia - injection of local anesthetic in the vicinity of a nerve plexus, often inside a tissue compartment that limits the diffusion of the drug away from the intended site of action. The anesthetic effect extends to the innervation areas of several or all nerves stemming from the plexus ...
construction of a model demonstrating neural pathways and reflex arcs
... of the CNS extending downward from the hindbrain. The spinal cord is protected by the vertebrae (backbone) asit passesdown the vertebral canal. The spinal cord terminates between the first two lumbar vertebrae in most adults. Neurons in the spinal cord are also functionally arranged so that areas de ...
... of the CNS extending downward from the hindbrain. The spinal cord is protected by the vertebrae (backbone) asit passesdown the vertebral canal. The spinal cord terminates between the first two lumbar vertebrae in most adults. Neurons in the spinal cord are also functionally arranged so that areas de ...