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Temporal Aspects of Visual Extinction
Temporal Aspects of Visual Extinction

...  New tools address some of the weaknesses.  Disadvantages of lesion mapping: – Poor spatial precision: lesions are messy: location and extent influenced by vasculature, not functional areas. – Poor temporal precision: lesions are permanent.  Sequence of information processing difficult to assess. ...
Epilepsy - PBworks
Epilepsy - PBworks

... • Understand basic pharmaceutical, medical, and physical therapy interventions of epilepsy • Understand reasons for increased seizure activity and protocols associated with them • Discuss resources for patients/family diagnosed with epilepsy ...
Measurement of Corpus Callosum in Sudanese Population Using MRI
Measurement of Corpus Callosum in Sudanese Population Using MRI

... subcortical regions of the right and left hemispheres and plays an essential role in the integration of information between the two hemispheres (Gupta ,et al 2008).Position and size of the corpus callosum is well appreciated in median sections. The anterior end is called “the genu", the median regio ...
powerpoint
powerpoint

... Difficulties with rote memorisation; Difficulties with rapid word retrieval; Difficulties with reading – decoding words automatically can be difficult and the additional energy consumed on this tends to lessen comprehension i.e. students with dyslexia rely more on context when reading and this slows ...
Neurobiological Foundations of Religion and Science
Neurobiological Foundations of Religion and Science

... We recognize that most religions are focused on the human being, with the Universe relegated to playing a supporting role, whereas science is centered on the Universe, with the human being just one of its many components. In religion, spatial and temporal dimensions are those familiar to human expe ...
Alcoholism - Boston University Medical Campus
Alcoholism - Boston University Medical Campus

... cerebral hemispheres is important because, although both cerebral hemispheres contain EROS circuitry, their specific functions may be lateralized to reflect differential hemispheric sensitivities to stimulus materials (e.g., linguistic vs. visuospatial) and task demands (e.g., attention, perception, m ...
Head turns bias the brain`s internal random generator
Head turns bias the brain`s internal random generator

... They allow for two principal conclusions. First, in the straight-ahead condition subjects produced more small numbers than expected by chance. In accordance with recent findings [3], the brain's internal ...
Thought translation, tennis and Turing tests in the vegetative state
Thought translation, tennis and Turing tests in the vegetative state

... There is indeed a close connection between the modern problem whether artificial devices have minds, and the older philosophical problem of how we know for certain that others have a mind, based on behavioral evidence (e.g., Harnad 1991). As argued by Stins (2008), neurologists and scientists who ar ...
spatial cognition - UCSD Cognitive Science
spatial cognition - UCSD Cognitive Science

... distance and direction, allowing specific places to be easily located. b, Hafting et al.1 find that as a rat explores an experimental enclosure, the discharge rate of a neuron in the dorsocaudal medial entorhinal cortex increases at regular intervals corresponding to the vertices of a triangular gri ...
Are cortical spikes conveyed to contralateral
Are cortical spikes conveyed to contralateral

... continues to increase after it occurs. Amplitude of the contralateral spike discharge was dwarfed because of their fluctuation as shown in Fig. 1. RCx, right cortex; CC, corpus callosum; LCx, left cortex. ...
Philip Buss - the IDeA Lab!
Philip Buss - the IDeA Lab!

... damage due to a massive stroke (Milner, Goodale, 2004, p. 32-33). This man’s disorder, called optic ataxia, is fundamentally opposite Dee’s. He has perfect perception, in that he can see objects and accurately describe them as well as their orientation in space. In other words, his visuospatial skil ...
Perception - UBC Computer Science
Perception - UBC Computer Science

... S overall size of Gabor function O rotation matrix that orients cosine wave ...
Exam 1
Exam 1

... B. the right hemisphere can identify the pictured object but the object cannot be named. C. only objects in the right visual field are received and processed by the primary visual cortex. D. the left and right hemispheres can both name and identify objects by touch. Question 17 The results of these ...
reading for language.
reading for language.

... and functional organization of language networks in either hemisphere [6]. More than 95% of right-handed individuals, as well as almost 80% of left-handed individuals, have left hemisphere dominance for language [7]. Women tend to perform better on language tasks and have bilateral language represen ...
Zum Thema Kategorisierung
Zum Thema Kategorisierung

... Université de Toulouse, CerCo, UPS, 31062, Toulouse, France, [email protected]. The visual system of primates is remarkably efficient for analysing information about objects present in complex natural scenes. Recent work has demonstrated that they perform this at very high speeds. In a ...
Apparent Atypical Callosal Dysgenesis
Apparent Atypical Callosal Dysgenesis

... white matter fibers has been described in patients with holoprosencephaly of the intermediate or semi lobar type [5 , 7, 10, 11]. Fleming and Norman [11] describe one such pseudosplenium in depth. This structure, formed by myelinated and unmyelinated transverse axons, differed from a normal corpus c ...
Does Sudafed® Improve Performance on
Does Sudafed® Improve Performance on

... dilation, and pupillary dilation. The significant difference in response time during the visual go/no-go task therefore can be attributed to having an increased heart rate and also having pupillary dilation. With increased heart rate, participants could have been more ready to respond to visual sti ...
Dreaming of Each Other at the Same Time
Dreaming of Each Other at the Same Time

... the dialogues are created from a collection of the activated features in any given scenario. Now two people are going to have dreams about each other in the same night. The dialogue is dictated by a physical “convergence in time.” The dialogue activity occurs whenever there is: ...
2. Literature Review
2. Literature Review

... eye. They are measurable at the back of head. Beta band are the second most prominent and can be anywhere from 13 to 30 Hz. They signify mental activity and mental concentration. Theta band lies from 4 to 7.9 Hz and are mostly observed when the mind is in idle state. Delta band waves are form 1 to 3 ...
Brain Abnormalities in Murderers Indicated by
Brain Abnormalities in Murderers Indicated by

... Murderers pleading not guilty by reason of insanity (NGRI) are thought to have brain dysfunction, but there have been no previous studies reporting direct measures of both cortical and subcortical brain functioning in this specific group. Positron emission tomography brain imaging using a continuous ...
Is There Evidence That Memory Is Separated Into Implicit and
Is There Evidence That Memory Is Separated Into Implicit and

... and each word was given a numerical rating based upon certain factors, such as: concreteness, abstractness, and imagability. In order to try to differentially affect either the implicit or explicit memory systems, two separate types of words were chosen, based upon the ratings they were assigned fro ...
5 Amazing Things Your Brain Does While You Sleep
5 Amazing Things Your Brain Does While You Sleep

... fall asleep (they were lying in a dark room). When the subjects were asleep, the researchers began introducing new words from the same categories. Brain monitoring devices showed that even when the subjects were sleeping, their brains continued to prepare the motor function to create right and left  ...
Teen Brain - CDS--The-Tech
Teen Brain - CDS--The-Tech

... http://www.verdick.org/child-development-and-the-internet/child-dev-pos ...
nato cc
nato cc

... relationship. In our own study (39) we measured forebrain volume and the size of the midsagittal CC area in 120 young and healthy adults (49 women, 71 men, mean age ± S.D. = 25.7 ± 4.7 years) using in-vivo magnetic resonance morphometry of the brain (128 contiguous sagittal 1.17mm-thick sections). I ...
Disproportion of cerebral surface areas and volumes in
Disproportion of cerebral surface areas and volumes in

... cortical dysgenesis (CD) and may occur at any level, from the synaptic to the macroscopic (Becker, 1991; Sarnat, 1992; Raymond et al., 1995). The nomenclature of dysgenesis is not yet universally agreed; we use the system proposed by Raymond et al. (1995), based on the appearance of dysgenesis as se ...
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Split-brain

Split-brain is a lay term to describe the result when the corpus callosum connecting the two hemispheres of the brain is severed to some degree. It is an association of symptoms produced by disruption of or interference with the connection between the hemispheres of the brain. The surgical operation to produce this condition results from transection of the corpus callosum, and is usually a last resort to treat refractory epilepsy. Initially, partial callosotomies are performed; if this operation does not succeed, a complete callosotomy is performed to mitigate the risk of accidental physical injury by reducing the severity and violence of epileptic seizures. Before using callosotomies, epilepsy is instead treated through pharmaceutical means. After surgery, neuropsychological assessments are often performed.After the right and left brain are separated, each hemisphere will have its own separate perception, concepts, and impulses to act. Having two ""brains"" in one body can create some interesting dilemmas. When one split-brain patient dressed himself, he sometimes pulled his pants up with one hand (that side of his brain wanted to get dressed) and down with the other (this side didn't). Also, once he grabbed his wife with his left hand and shook her violently. So his right hand came to her aid and grabbed the aggressive left hand. However, such conflicts are actually rare. If a conflict arises, one hemisphere usually overrides the other.When split-brain patients are shown an image only in their left visual field (the left half of what both eyes take in (see optic tract)), they cannot vocally name what they have seen. This can be explained in three steps: (1) The image seen in the left visual field is sent only to the right side of the brain; (2) For most people, the speech-control center is on the left side of the brain; and (3) Communication between the two sides of the brain is inhibited. Thus, the patient cannot say out loud the name of that which the right side of the brain is seeing. In the case that the speech-control center is on the right side of the brain, the image must now be presented to only the right visual field to achieve the same effect.If a split-brain patient is touching a mysterious object with only the left hand, while also receiving no visual cues in the right visual field, the patient cannot say out loud the name of that which the right side of the brain is touching. This can be explained in three steps: (1) Each cerebral hemisphere of the primary somatosensory cortex only contains a tactile representation of the opposite (contralateral) side of the body; (2) For most humans, the speech-control center is on the left side of the brain; and (3) Communication between the two sides of the brain is inhibited. In the case that the speech-control center is on the right side of the brain, the object must now be touched only with the right hand to achieve the same effect.The same effect occurs for visual pairs and reasoning. For example, a patient with split brain is shown a picture of a chicken and a snowy field in separate visual fields and asked to choose from a list of words the best association with the pictures. The patient would choose a chicken foot to associate with the chicken and a shovel to associate with the snow; however, when asked to reason why the patient chose the shovel, the response would relate to the chicken (e.g. ""the shovel is for cleaning out the chicken coop"").""Scientists have often wondered whether split-brain patients, who have had the two hemispheres of their brain surgically disconnected, are 'of two minds'"" (Zilmer, 2001).
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