Hierarchical somatosensory processing
... In the caudal part of the gyrus, there are unique neurons that respond selectively to specific features of a stimulus some of these neurons arc [4,.5,X!]. In the monkey, activated better or solely by active hand movements, such as reaching [Zl]. Tremblay et al. [22] have reported that ...
... In the caudal part of the gyrus, there are unique neurons that respond selectively to specific features of a stimulus some of these neurons arc [4,.5,X!]. In the monkey, activated better or solely by active hand movements, such as reaching [Zl]. Tremblay et al. [22] have reported that ...
Understanding Embodied Cognition through Dynamical Systems
... In Figure 1, all vectors point towards a point in the lower left quadrant of the space, marked by a small dot, at which the vector field converges and around which the length of the vectors becomes infinitesimally small. Once activation levels have reached this point, their rate of change is approxi ...
... In Figure 1, all vectors point towards a point in the lower left quadrant of the space, marked by a small dot, at which the vector field converges and around which the length of the vectors becomes infinitesimally small. Once activation levels have reached this point, their rate of change is approxi ...
Learning in the oculomotor system: from molecules to behavior
... A second new experimental preparation is the zebrafish, another species that is amenable both to molecular–genetic approaches and to studying oculomotor learning. The VOR, the optokinetic reflex and saccadic eye movements of zebrafish are mature by 5 days post-fertilization [47,48••]. Oculomotor lea ...
... A second new experimental preparation is the zebrafish, another species that is amenable both to molecular–genetic approaches and to studying oculomotor learning. The VOR, the optokinetic reflex and saccadic eye movements of zebrafish are mature by 5 days post-fertilization [47,48••]. Oculomotor lea ...
A lineage-related reciprocal inhibition circuitry for sensory
... maintenance of behavioural actions. However, little is known about the formation of the underlying circuits, or how they integrate sensory information for motor actions. Here, we show that paired embryonic neuroblasts generate central complex ring neurons that mediate sensory-motor transformation an ...
... maintenance of behavioural actions. However, little is known about the formation of the underlying circuits, or how they integrate sensory information for motor actions. Here, we show that paired embryonic neuroblasts generate central complex ring neurons that mediate sensory-motor transformation an ...
New perspectives on the evolution of protochordate sensory and
... the same time, the shortcomings of classical morphological studies have become increasingly apparent. The nervous system is especially problematic, since much of its structural detail is below the resolving power of traditional microscopy and requires special techniques to render it visible. However ...
... the same time, the shortcomings of classical morphological studies have become increasingly apparent. The nervous system is especially problematic, since much of its structural detail is below the resolving power of traditional microscopy and requires special techniques to render it visible. However ...
PDF file
... the brain and pleasure may be learned through the rise of the level of dopamine (Robbins & Everitt, 1996; Solomon & Corbit, 1973, 1974). The roles of serotonin and dopamine fall into the category of neuromodulation, because they play modulatory roles by interacting with the basic brain circuits. Alt ...
... the brain and pleasure may be learned through the rise of the level of dopamine (Robbins & Everitt, 1996; Solomon & Corbit, 1973, 1974). The roles of serotonin and dopamine fall into the category of neuromodulation, because they play modulatory roles by interacting with the basic brain circuits. Alt ...
NUCLEUS ACCUMBENS NEURONAL ACTIVITY DURING A
... Table 1. The same cue types were used for each animal throughout training; thus, the noise, tone, flashing light, and solid light stimuli (described above) were made to correspond to cues A, B, X, and Y, respectively. All cues were always presented for 10 s. Preconditioning. Rats were divided into ...
... Table 1. The same cue types were used for each animal throughout training; thus, the noise, tone, flashing light, and solid light stimuli (described above) were made to correspond to cues A, B, X, and Y, respectively. All cues were always presented for 10 s. Preconditioning. Rats were divided into ...
A comparison of the distribution and morphology of ChAT
... cholinergic neuronal population in the thoracolumbar and sacral spinal cord of the pig. The distribution of ChAT-, VAChT- and AChE-positive cells was found to be similar. Distinct groups of cholinergic neurons were observed in the gray matter of the ventral horn, intermediolateral nucleus, intermedi ...
... cholinergic neuronal population in the thoracolumbar and sacral spinal cord of the pig. The distribution of ChAT-, VAChT- and AChE-positive cells was found to be similar. Distinct groups of cholinergic neurons were observed in the gray matter of the ventral horn, intermediolateral nucleus, intermedi ...
Table of Contents
... tagged chemicals serve as markers of blood flow or metabolic activity in the brain that are monitored by X-ray – (MRI) magnetic resonance imaging - uses magnetic fields, radio waves, and computer enhancement to image brain structure – (fMRI)functional magnetic resonance imaging – RealTable of Conten ...
... tagged chemicals serve as markers of blood flow or metabolic activity in the brain that are monitored by X-ray – (MRI) magnetic resonance imaging - uses magnetic fields, radio waves, and computer enhancement to image brain structure – (fMRI)functional magnetic resonance imaging – RealTable of Conten ...
Simulation of signal flow in 3D reconstructions of an anatomically
... 1. Introduction The different functions of neural circuits emerge from the morphology and connectivity patterns established among diverse neuronal cell types. The single neuron represents the elemental functional unit of these networks. Depending on their dendrite morphology, as well as their synapt ...
... 1. Introduction The different functions of neural circuits emerge from the morphology and connectivity patterns established among diverse neuronal cell types. The single neuron represents the elemental functional unit of these networks. Depending on their dendrite morphology, as well as their synapt ...
Unit 7 Nervous System - Lemon Bay High School
... To monitor changes occurring inside and outside the body Changes = stimuli Integration To process and interpret sensory input and decide if action is needed ...
... To monitor changes occurring inside and outside the body Changes = stimuli Integration To process and interpret sensory input and decide if action is needed ...
Spinal cord and simple reflex arc
... Reflexes can be consciously suppressed by the cortex. The reflex arc is a pathway, which can break down at any point in the pathway. ...
... Reflexes can be consciously suppressed by the cortex. The reflex arc is a pathway, which can break down at any point in the pathway. ...
Ergonomics
... The nervous system is an organ system containing a network of specialized cells called neurons that coordinate the actions of the body and transmit signals between different parts of its body. ...
... The nervous system is an organ system containing a network of specialized cells called neurons that coordinate the actions of the body and transmit signals between different parts of its body. ...
A multi-level account of selective attention
... accompanied by incompatible flankers as opposed to compatible flankers. The effect of flanker identity on RT supports the late selection tenet that items outside the locus of attention are processed at least to the level of semantic description despite the fact that subjects had perfect foreknowledg ...
... accompanied by incompatible flankers as opposed to compatible flankers. The effect of flanker identity on RT supports the late selection tenet that items outside the locus of attention are processed at least to the level of semantic description despite the fact that subjects had perfect foreknowledg ...
SECTION A.1 – ELECTRICAL IMBALANCE IN AUTISM A. Evidence
... we are overly relaxed and sedated, often to the point that normal reactions are impaired.2 Excessive neural excitation can result either from too much glutamate or too little GABA.3 Either way, the normal homeostatic balance between excitation and inhibition is thrown off in favor of greater levels ...
... we are overly relaxed and sedated, often to the point that normal reactions are impaired.2 Excessive neural excitation can result either from too much glutamate or too little GABA.3 Either way, the normal homeostatic balance between excitation and inhibition is thrown off in favor of greater levels ...
Assessing facial attractiveness: individual decisions and
... Background: Several studies showed that facial attractiveness, as a highly salient social cue, influences behavioral responses. It has also been found that attractive faces evoke distinctive neural activation compared to unattractive or neutral faces. Objectives: Our aim was to design a face recogni ...
... Background: Several studies showed that facial attractiveness, as a highly salient social cue, influences behavioral responses. It has also been found that attractive faces evoke distinctive neural activation compared to unattractive or neutral faces. Objectives: Our aim was to design a face recogni ...
Evidence of sympathetic ®bers in the male rat pelvic nerve
... a loss of neural ®bers in the pelvic nerve following lesion of the lumbosacral spinal cord in the rat. However retrograde labelling from the pelvic nerve in this species suggests that the lumbosacral spinal cord contribute a contingent of ®bers in the pelvic nerve. It is also unclear whether pregang ...
... a loss of neural ®bers in the pelvic nerve following lesion of the lumbosacral spinal cord in the rat. However retrograde labelling from the pelvic nerve in this species suggests that the lumbosacral spinal cord contribute a contingent of ®bers in the pelvic nerve. It is also unclear whether pregang ...
PDF hosted at the Radboud Repository of the Radboud University Nijmegen
... career of this analytic approach we are still lacking an appropriate under standing of the brain’s integrative functions: How do all the known compo nents interact as a system, how can they develop synergy and be integrated into a functional whole? How do networks of neurons aquire those emergent ...
... career of this analytic approach we are still lacking an appropriate under standing of the brain’s integrative functions: How do all the known compo nents interact as a system, how can they develop synergy and be integrated into a functional whole? How do networks of neurons aquire those emergent ...
Nervous System
... To monitor changes occurring inside and outside the body Changes = stimuli Integration To process and interpret sensory input and decide if action is needed ...
... To monitor changes occurring inside and outside the body Changes = stimuli Integration To process and interpret sensory input and decide if action is needed ...
NSS214 - National Open University of Nigeria
... deepens and by the twelfth day after conception has fused to form a neural tube. The part of the ectoderm where the fusion occurs becomes a structure separate from the neural tube and is called the neural crest. The neural tube becomes the CNS later while the neural crest eventually becomes the gang ...
... deepens and by the twelfth day after conception has fused to form a neural tube. The part of the ectoderm where the fusion occurs becomes a structure separate from the neural tube and is called the neural crest. The neural tube becomes the CNS later while the neural crest eventually becomes the gang ...
Brain Facts: A Primer On The Brain And Nervous System
... for almost all the information coming into the brain. Neurons in the hypothalamus serve as relay stations for internal regulatory systems by monitoring information coming in from the autonomic nervous system and commanding the body through those nerves and the pituitary gland. On the upper surface o ...
... for almost all the information coming into the brain. Neurons in the hypothalamus serve as relay stations for internal regulatory systems by monitoring information coming in from the autonomic nervous system and commanding the body through those nerves and the pituitary gland. On the upper surface o ...
Relative timing: from behaviour to neurons
... brain as well as in the influence of internal states, such as attention, on those interactions. Evidence from human neurophysiological and functional imaging studies, neuropsychological examination in brain-lesioned patients, and temporary disruptive interventions such as transcranial magnetic stimu ...
... brain as well as in the influence of internal states, such as attention, on those interactions. Evidence from human neurophysiological and functional imaging studies, neuropsychological examination in brain-lesioned patients, and temporary disruptive interventions such as transcranial magnetic stimu ...