Visual Cortex and Control Processes Stimuli in Opposite Visual
... occipital cortex. However, this result may have been a consequence of task demands because subjects were always instructed to report letters on one particular side first in the bilateral blocks, followed by the other side if possible. During unilateral blocks, subjects reported 88% of the letters co ...
... occipital cortex. However, this result may have been a consequence of task demands because subjects were always instructed to report letters on one particular side first in the bilateral blocks, followed by the other side if possible. During unilateral blocks, subjects reported 88% of the letters co ...
Stages in Neuromuscular Synapse Elimination
... • Sensory deprivation early in life can alter the structure of the cerebral cortex. ...
... • Sensory deprivation early in life can alter the structure of the cerebral cortex. ...
Detection of grey matter loss in mild Alzheimer`s disease
... (MR) imaging are among the most sensitive. Hippocampal and entorhinal cortex volumetry and surface measures of the entorhinal cortex are believed to have high sensitivity and specificity in the detection of AD from non-demented elderly controls1 2 and can predict conversion of mild cognitive impairm ...
... (MR) imaging are among the most sensitive. Hippocampal and entorhinal cortex volumetry and surface measures of the entorhinal cortex are believed to have high sensitivity and specificity in the detection of AD from non-demented elderly controls1 2 and can predict conversion of mild cognitive impairm ...
Cooperation and biased competition model can explain attentional
... Focused attention task and inattentional blindness We model a visual attentional experiment, performed by Everling et al. (2002), that monitors the activity level of single neurons in the prefrontal cortex (PFC) of awake behaving monkeys engaged in a focused attention task. In this experiment, a mon ...
... Focused attention task and inattentional blindness We model a visual attentional experiment, performed by Everling et al. (2002), that monitors the activity level of single neurons in the prefrontal cortex (PFC) of awake behaving monkeys engaged in a focused attention task. In this experiment, a mon ...
Chapter 15
... A number of other disorders may also lead to dementia, including: Vascular dementia (multi-infarct dementia) • May follow a cerebrovascular accident, or stroke, during which blood flow to specific areas of the brain was cut off, ...
... A number of other disorders may also lead to dementia, including: Vascular dementia (multi-infarct dementia) • May follow a cerebrovascular accident, or stroke, during which blood flow to specific areas of the brain was cut off, ...
Danczi Csaba László - 2nd WORLD CONGRESS OF ARTS
... stimulus moving continuously across the cutaneous surface (2). The presence of extensive connections between superficial and deep regions of the colliculus in the cat supports the idea that receptive field organization in the deep layers is modulated by visual input from the overlying layers. Thus, ...
... stimulus moving continuously across the cutaneous surface (2). The presence of extensive connections between superficial and deep regions of the colliculus in the cat supports the idea that receptive field organization in the deep layers is modulated by visual input from the overlying layers. Thus, ...
The Binding Problem
... Background There are few, if any, places in the nervous system where all the information necessary to carry out a particular task is localized. This means that sensory, cognitive and motor processes result from parallel interactions among large populations o neurons in different regions of the brain ...
... Background There are few, if any, places in the nervous system where all the information necessary to carry out a particular task is localized. This means that sensory, cognitive and motor processes result from parallel interactions among large populations o neurons in different regions of the brain ...
Chapter 3
... Note whether views are – Axial (Horizontal) Views – Coronal Views – Less need for familiarity with sagittal view ...
... Note whether views are – Axial (Horizontal) Views – Coronal Views – Less need for familiarity with sagittal view ...
What and Where Pathways
... Figure 4.11 (a) Results of a psychophysical selective adaptation experiment. This graph shows that the participant’s adaptation to the vertical grating causes a large decrease in her ability to detect the vertical grating when it is presented again, but less effect on gratings that are tilted to ei ...
... Figure 4.11 (a) Results of a psychophysical selective adaptation experiment. This graph shows that the participant’s adaptation to the vertical grating causes a large decrease in her ability to detect the vertical grating when it is presented again, but less effect on gratings that are tilted to ei ...
Binding Mechanisms in Visual Perception
... neural signals enable the visual system to recognize specific object from its background? Synchronous neural activities have been found extensively among different brain functional areas, it’s also an important mechanism that also exists in visual perception. Gray et al (1989) recorded neural signal ...
... neural signals enable the visual system to recognize specific object from its background? Synchronous neural activities have been found extensively among different brain functional areas, it’s also an important mechanism that also exists in visual perception. Gray et al (1989) recorded neural signal ...
The Relationship Between Cerebrospinal Fluid Creatine Kinase and
... made without knowledge of the clinical history or the CSF-CK activities. Semiquantitative evaluation of necrosis or loss of nerve cells was made separately in the four regions acno cording to the following system: grade 0 necrosis or cell loss of less than damage; grade 1 25% of the neurons; grade 2 ...
... made without knowledge of the clinical history or the CSF-CK activities. Semiquantitative evaluation of necrosis or loss of nerve cells was made separately in the four regions acno cording to the following system: grade 0 necrosis or cell loss of less than damage; grade 1 25% of the neurons; grade 2 ...
Visual System Part 1 – Visual Perception
... Metabotropic connections – the T-current The T-current produces a long-lasting depolarization, causing the thalamic neuron to fire a burst of spikes The T-current is inactivated when the neuron is depolarized ( > -55 mV), then the neuron fires ...
... Metabotropic connections – the T-current The T-current produces a long-lasting depolarization, causing the thalamic neuron to fire a burst of spikes The T-current is inactivated when the neuron is depolarized ( > -55 mV), then the neuron fires ...
The visual cortex - Neuroscience Network Basel
... In the human the projection is crossed to about 50%, with the ganglion cell axons from the temporal half of the retina remaining ipsilateral, and those from the nasal half of the retina crossing in the chiasm (Attention: The crossed projection from the nasal half of the retina represents the tempora ...
... In the human the projection is crossed to about 50%, with the ganglion cell axons from the temporal half of the retina remaining ipsilateral, and those from the nasal half of the retina crossing in the chiasm (Attention: The crossed projection from the nasal half of the retina represents the tempora ...
sms7new
... ventral striatum (which includes the nucleus accumbens). The striatum is divided into the caudate nucleus and putamen by the internal capsule, a major collection of fibers that run between the neocortex and thalamu in both directions. ...
... ventral striatum (which includes the nucleus accumbens). The striatum is divided into the caudate nucleus and putamen by the internal capsule, a major collection of fibers that run between the neocortex and thalamu in both directions. ...
Nuclear medicine in psychiatry
... From the second half of the twentieth century, advances in biological and psychopharmacological research seemed to promise a swift discovery of an organic basis of psychiatric diseases. Today we know that biological research in psychiatry is not a success story. ...
... From the second half of the twentieth century, advances in biological and psychopharmacological research seemed to promise a swift discovery of an organic basis of psychiatric diseases. Today we know that biological research in psychiatry is not a success story. ...
Chapter1 (new window)
... perceived magnitude is a power function – Steven’s Power Law • P = KSn ...
... perceived magnitude is a power function – Steven’s Power Law • P = KSn ...
Unit 3 Summary
... It is important to note that sensory (or motor) pathways between the CNS and PNS are contralaterally organised, that is, movement (or sensation) on the right side of the body occurs in response (or is received in) the relevant area of the left hemisphere, and visa-versa. The corpus callosum …is th ...
... It is important to note that sensory (or motor) pathways between the CNS and PNS are contralaterally organised, that is, movement (or sensation) on the right side of the body occurs in response (or is received in) the relevant area of the left hemisphere, and visa-versa. The corpus callosum …is th ...
The Physiology of the Senses Lecture 6 Visually Guided Actions
... foveal location and B to a less peripheral location. In V1 this is where B would have been coded were it visible. ...
... foveal location and B to a less peripheral location. In V1 this is where B would have been coded were it visible. ...
Berman - LIFE at UCF - University of Central Florida
... A. Evidence of modest cognitive decline from a previous level of performance in one or more cognitive domains (complex attention, executive function, learning and memory, language, perceptual-motor, or social cognition) based on: 1. Concern of the individual, a knowledgeable informant, or the clinic ...
... A. Evidence of modest cognitive decline from a previous level of performance in one or more cognitive domains (complex attention, executive function, learning and memory, language, perceptual-motor, or social cognition) based on: 1. Concern of the individual, a knowledgeable informant, or the clinic ...
Introduction to Perception
... Figure 1.13 Results of a hypothetical experiment in which the threshold for seeing a light is measured by the method of constant stimuli. The threshold - the intensity at which the light is seen on half of its presentations - is 180 in this experiment. ...
... Figure 1.13 Results of a hypothetical experiment in which the threshold for seeing a light is measured by the method of constant stimuli. The threshold - the intensity at which the light is seen on half of its presentations - is 180 in this experiment. ...
Comparison of alterations in cerebral hemoglobin oxygenation in
... NIRS data with significant artifacts were excluded from the analysis. Thus, data from 30 patients with depression, 28 patients with AD, and 33 healthy controls were analyzed. Although [oxy-Hb], [deoxy-Hb], and total hemoglobin concentrations can be measured by NIRS, we concentrated on [oxy-Hb], whic ...
... NIRS data with significant artifacts were excluded from the analysis. Thus, data from 30 patients with depression, 28 patients with AD, and 33 healthy controls were analyzed. Although [oxy-Hb], [deoxy-Hb], and total hemoglobin concentrations can be measured by NIRS, we concentrated on [oxy-Hb], whic ...
NEURO-FOR-THE-NOT-SO-NEURO
... • Illusions—distortion of an ongoing stimuli • Drugs and hallucinations—boosting dopamine triggers hallucinations—drugs for Parkinson’s disease, hallucinogenic drugs and mushrooms, ETOH withdrawal, ...
... • Illusions—distortion of an ongoing stimuli • Drugs and hallucinations—boosting dopamine triggers hallucinations—drugs for Parkinson’s disease, hallucinogenic drugs and mushrooms, ETOH withdrawal, ...