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Metabolic changes in schizophrenia and human brain evolution
Metabolic changes in schizophrenia and human brain evolution

... To investigate this further, we directly studied brain metabolism in prefrontal cortex of human schizophrenia patients (N = 10) and healthy controls (N = 12), as well as in two species of non-human primates, chimpanzees (N = 5) and rhesus macaques (N = 6), using 1H NMR spectroscopy (Materials and me ...
Brain Evolution Relevant to Language
Brain Evolution Relevant to Language

... It proceeds along two major pathways, often referred to as the dorsal and ventral streams (Bear et al. 2007). The dorsal stream moves from the primary visual cortex in the posterior occipital lobe (in the most posterior part of the brain) up into the adjacent parietal cortex, and is involved in proc ...
Linking reward expectation to behavior in the basal ganglia
Linking reward expectation to behavior in the basal ganglia

... Indeed, in both tasks, a reward is expected if the contralateral stimulus appears. The answer, it seems, has to do with another form of uncertainty. The second task eliminated uncertainty not only about which eye movement would be made, but also about whether or not there would be a reward. This exp ...
Structural divisions and functional fields in the human cerebral cortex 1
Structural divisions and functional fields in the human cerebral cortex 1

... The question of what is a cortical area needs a thorough definition of borders both in the microstructural and the functional domains. Microstructural parcellation of the human cerebral cortex should be made on multiple criteria based on quantitative measurements of microstructural variables, such a ...
14.FARS 3.Synthetic PET(2001) - University of Southern California
14.FARS 3.Synthetic PET(2001) - University of Southern California

... As a computational plus (going beyond the imaging technology), we can also collect the contributions of the excitatory and inhibitory synapses separately, based on evaluating the integral in (1) over one set of synapses or the other. Michael Arbib CS564 - Brain Theory and Artificial Intelligence, US ...
Obsessive–Compulsive Symptoms and Related Sex Differences in
Obsessive–Compulsive Symptoms and Related Sex Differences in

... den Heuvel, 2006; Saxena & Rauch, 2000). It has been hypothesized that an imbalance between these loops, resulting in a hyperactive ventral and hypoactive dorsal ...
Chapter 2: Brain and Behavior
Chapter 2: Brain and Behavior

... The three bright spots are areas in the left brain related to language. The spot on the right is active during reading. The top-middle area is connected with speech. The area to the left, in the frontal lobe is linked with thinking about a word’s meaning (Montgomery, 1989). Table of Contents ...
Chapter 2: Brain and Behavior
Chapter 2: Brain and Behavior

... The three bright spots are areas in the left brain related to language. The spot on the right is active during reading. The top-middle area is connected with speech. The area to the left, in the frontal lobe is linked with thinking about a word’s meaning (Montgomery, 1989). Table of Contents ...
PDF
PDF

... words and languages” for intercellular communication, insights into the brain’s modular structural and functional units have been gained. In this article, it is proposed that the basic structural unit in brain is defined by its physiological operating system, and that it consists of a single neuron, ...
The Role of Ventromedial Prefrontal Cortex in Decision Making
The Role of Ventromedial Prefrontal Cortex in Decision Making

... the subject was asked to indicate which of the 2 they preferred, that is, ‘‘which of these 2 would you prefer, which do you like better?’’ Subjects were asked to make each judgment in isolation, without reference to their previous choices. No mention was made of any requirement for the choices to be ...
Blunted Brain Energy Consumption Relates to Insula
Blunted Brain Energy Consumption Relates to Insula

... levels and systemic glucose tolerance in obese versus normal-weight volunteers by 31P magnetic resonance spectroscopy (31P-MRS) before and after tDCS under the conditions of a standard hyperinsulinemic-euglycemic clamp procedure, which is considered the experimental gold standard to determine glucos ...
Altered Fronto-Striatal and Fronto-Cerebellar Circuits in Heroin
Altered Fronto-Striatal and Fronto-Cerebellar Circuits in Heroin

... Background: The formation of compulsive pattern of drug use is related to abnormal regional neural activity and functional reorganization in the heroin addicts’ brain, but the relationship between heroin-use-induced disrupted local neural activity and its functional organization pattern in resting-s ...
PDF
PDF

... the amount of silver impregnation and staining intensity for cresyl violet. The central portions of our tissue blocks, which were exposed to the least mordant and silver nitrate demonstrated the most robust Nissl staining. The superficial areas, with good silver stain, had faint cresyl violet staini ...
The Nervous System  - Home
The Nervous System - Home

... many of the same neurons for your whole life. Although other cells die and are replaced, many neurons are never replaced when they die. In fact, you have fewer neurons when you are old compared to when you are young. On the other hand, data published in November 1998 show that in one area of the bra ...
Hippocampus duality: memory and novelty detection are subserved
Hippocampus duality: memory and novelty detection are subserved

... brain region is apparently responsible both for detecting out-of-context stimuli and also for matching stimuli in the environment to stored representations. Each of these aspects of cognition is associated with frequently used experimental paradigms and robust electrophysiological signatures, but th ...
Aerobic Exercise and Attention Deficit Hyperactivity Disorder: Brain
Aerobic Exercise and Attention Deficit Hyperactivity Disorder: Brain

... is beneficial for improving concentration, reading and mathematics achievement, as well as inhibitory control (13). Pontifex et al. (29) reported that a 20-min aerobic exercise improved inhibitory control and scholastic performance in children with ADHD age 8–10 yr. Our previous study suggested that ...
A Verbose Guide to Dissection of the Sheep`s Brain H
A Verbose Guide to Dissection of the Sheep`s Brain H

... one is used for forebrain, lower one is used for brain stem and spinal cord. ...
Gender Differences in Human Brain: A Review
Gender Differences in Human Brain: A Review

... grams more of brain tissue. Women have a more developed neuropil, or the space between cell bodies, which contains synapses, dendrites and axons. This may explain why women are more prone to dementia (such as Alzheimer's disease) than men, because although both may lose the same number of neurons du ...
pdf
pdf

... the majority – if not all – of PD patients in time [9]. With PD progression, NMS can be more disabling than the motor symptoms [10]. It has been estimated that up to 25% of individuals present with cognitive dysfunction in the absence of dementia [11,12]. This may be of concern as it relates to both ...
Saliency, switching, attention and control
Saliency, switching, attention and control

... activated across multiple sensory and cognitive domains (Kurth et al. 2010). We next review functional and structural circuits associated with the insula, and then discuss why the AI can be considered the hub of a ‘‘salience network’’ (SN). We describe the core dynamical functions of this network an ...
Convergent evolution of complex brains and high intelligence
Convergent evolution of complex brains and high intelligence

... simple cerebral ganglia, and bivalves show clear signs of secondary simplification. In contrast, cephalopods possess complex to very complex brains, which may have evolved several times independently [18]. The most complex brains are found in squids (Theutidae) and octopods (Octopoda) [7]. The nervo ...
Brains, Bodies, and Behavior
Brains, Bodies, and Behavior

... Although this chapter begins at a very low level of explanation, and although the topic of study may seem at first to be far from the everyday behaviors that we all engage in, a full understanding of the biology underlying psychological processes is an important cornerstone of your new understanding ...
Pathogenicity and Effects of Prions Misfolding
Pathogenicity and Effects of Prions Misfolding

... Figure 1. Comparision between normal and abnormal EEG. Abnormal EEG shows PSWCs.(Moody et al 2011). Although prions are generally given a bad reputation in popular news outlets due to the debilitating diseases they have been preported to have caused, prions are naturally found throughout the body. A ...
Powerpoint Slides
Powerpoint Slides

... (2nd ed.), M. S. Gazzaniga, R. B. Ivry & G. R. Mangun (Eds.). • Cohen, M. S., & Bookheimer, S. (1994). Localization of brain function using magnetic resonance imaging. Trends in Neuroscience, 17, 268-277. • Available online at: http://airto.loni.ucla.edu/BMCweb/SharedCode/TINS/FMRI-TINS.html ...
Understanding the Brain - NSTA Learning Center
Understanding the Brain - NSTA Learning Center

... From GG Gross de Nunez and RD Schwartz-Bloom. Animated Neuroscience & the Actions of Nicotine, Cocaine, & Marijuana in the Brain (www.films.com) ...
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Human multitasking

Human multitasking is the apparent performance by an individual of handling more than one task, or activity, at the same time. The term is derived from computer multitasking. An example of multitasking is taking phone calls while typing an email. Multitasking can result in time wasted due to human context switching and apparently causing more errors due to insufficient attention. However, studies have shown that some people can be trained to multitask where changes in brain activity have been measured as improving performance of multiple tasks (see below: The brain's role). Multitasking can also be assisted with coordination techniques, such as taking notes periodically, or logging current status during an interruption to help resume a prior task midway.
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