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the mirror-neuron system - Psychology and Neuroscience
the mirror-neuron system - Psychology and Neuroscience

... between the effective observed and the effective executed action. In about one third of them, the effective observed and executed actions are virtually identical (strictly congruent neurons); in the remaining, the effective observed and executed actions are similar or functionally related (broadly c ...
the mirror-neuron system - UCSF Center for Integrative Neuroscience
the mirror-neuron system - UCSF Center for Integrative Neuroscience

... between the effective observed and the effective executed action. In about one third of them, the effective observed and executed actions are virtually identical (strictly congruent neurons); in the remaining, the effective observed and executed actions are similar or functionally related (broadly c ...
Luczak, 2015 - University of Lethbridge
Luczak, 2015 - University of Lethbridge

... a different study than that shown in part a). Grey horizontal lines are pseudocolour representations of each neuron’s peristimulus time histogram (PSTH), and the red dots denote each neuron’s mean spike latency, which is defined as the centre of mass of PSTH in the 100 ms after tone onset and corres ...
Direct comparison of the neural substrates of
Direct comparison of the neural substrates of

The Dopamine Transporter and Risk-Taking Behavior
The Dopamine Transporter and Risk-Taking Behavior

Insula and Orbitofrontal Cortical Morphology in Substance
Insula and Orbitofrontal Cortical Morphology in Substance

... have not been entirely consistent. No difference in cortical volume was observed in a study of 16 drug users18 or in another study of 34 cocaine-dependent subjects,19 compared with controls. One possibility for equivocal results may be methodologic. Many prior studies used voxel-based morphometry, ...
Probabilistic Anatomic Mapping of Cerebral Blood Flow Distribution
Probabilistic Anatomic Mapping of Cerebral Blood Flow Distribution

... vascular territory. Among various cerebral structures, the subcortical structure of the basal ganglia showed the highest likelihood of being supplied by the MCA, followed by the insular cortex, and various cerebral cortices. This highest probability of the basal ganglia could be explained by the fac ...
avian brain nomenclature forum
avian brain nomenclature forum

... 1936). The inherited names that we commonly employ for the avian brain are represented in the most popular avian brain atlases (on the pigeon brain: Karten and Hodos, 1967; on the chicken brain, Kuenzel and Masson,1988; see also Dubbeldam, 1998). These names have been very useful and have provided a ...
annual report 2004 - OV Lounasmaa Laboratory
annual report 2004 - OV Lounasmaa Laboratory

Quantified Distribution of the Noradrenaline Innervation in the
Quantified Distribution of the Noradrenaline Innervation in the

... counted consisted of columns comprising 4-8 rectangular counting windows according to the hippocampal region examined (Fig. 1). From one section and one rat to another, the columns were localized as reproducibly as possible with the aid of low-magnification drawings of each section. The choice of wi ...
PII: S0006-8993(97) - UCSD Cognitive Science
PII: S0006-8993(97) - UCSD Cognitive Science

... In adult monkeys with dorsal rhizotomies extending from the second cervical ŽC 2 . to the fifth thoracic ŽT5 . vertebrae, cortex deprived of its normal inputs regained responsiveness to inputs conveyed by intact peripheral afferents from the face wT.P. Pons, P.E. Garraghty, A.K. Ommaya, J.H. Kaas, E ...
Regional and laminar distribution of the vesicular glutamate
Regional and laminar distribution of the vesicular glutamate

Canonical Microcircuits for Predictive Coding
Canonical Microcircuits for Predictive Coding

... neuron from which they recorded. By recording from pyramidal neurons in L2–L6 (L1 lacks pyramidal cells), the authors mapped the excitatory influence that each layer exerts over the others. They found that the L2/3 to L5A/B was the strongest connection, accounting for one-third of the total synaptic ...
.... _ ACKNOWLEDGMENT !_ This monograph is based on the
.... _ ACKNOWLEDGMENT !_ This monograph is based on the

... The regional distribution of MDMA-induced silver staining does not correspond to the regional distribution of the vulnerable fine fibers. MDMA-induced silver staining is limited primarily to the frontoparietal cortex. It sometimes involves regions of posterior neocortex and striatum and is rarely ob ...
NEUROTRANSMITTER SYSTEMS IN THE VISUAL CORTEX OF
NEUROTRANSMITTER SYSTEMS IN THE VISUAL CORTEX OF

... characteristics of stained neurons and information about their connections. It appears that GABAergic interneurons and terminals are present in all layers of the striate cortex. They form a heterogeneous population with regard to size and synaptic input. Besides a powerful asymmetric, presumably exc ...
Edwards Amy Edwards FYS 11/04/2011 Follow Your Dreams
Edwards Amy Edwards FYS 11/04/2011 Follow Your Dreams

... (NIH 3). “The cortex can only pass into sleep mode with the help from the thalamus. This is because the thalamus is one of the two structures that make up the diencephalon, the lower part of the fore brain. Its main function in mammals is the relay station of sensory information its way to the corti ...
Aalborg Universitet Brain plasticity Wang, Li
Aalborg Universitet Brain plasticity Wang, Li

... or after various modulatory effects. Study I used painful and non-painful finger stimulation applied to the thumb and little finger tips which as an experimental model to present the brain response to the peripheral stimulation. Study II explored the effect of acupuncture modulation on EEG power spe ...
Circuits of emotion in the primate brain
Circuits of emotion in the primate brain

Switching from automatic to controlled behavior: cortico - lsr
Switching from automatic to controlled behavior: cortico - lsr

... switching is not fully understood from the human data alone. The switching-associated reconfiguration of cognitive processes indicated by the psychological studies is probably composed of serial and parallel neuronal activity changes which occur within a short period before the decision to switch. H ...
Cortical control of saccades and fixation in man
Cortical control of saccades and fixation in man

... supplementary motor area (SMA), insula, cingulate, thalamus, midbrain, cerebellum and right superior temporal gyms (Brodmann s area 22). Compared with the individual saccadic tasks, central fixation activated extensive regions of ventromedial (areas 10, 11 and 32) and anterolateral (areas 8, 9, 10, ...
Early Microglial Activation Precedes Neuronal Loss in Mouse Model of Progressive
Early Microglial Activation Precedes Neuronal Loss in Mouse Model of Progressive

... of the cerebellum of Cstbj/j mice from 2 months of age onward, reaching almost 50% reduction in cerebellar volume by the age of 6 months (Fig. 2B). No significant differences in the rate of volume loss between molecular layer, cerebellar granule cell layer, and white matter were observed (data not sh ...
a review with emphasis on the projections of specific thalamic nuclei
a review with emphasis on the projections of specific thalamic nuclei

... There are, however, a number of difficulties which should be kept in mind when considering the results of retrograde degeneration studies. One of these concerns the true extent of the cortical lesion; nearly every hemidecortication referred to above was accompanied by damage to subcortical structure ...
MSc Thesis Template Document
MSc Thesis Template Document

... brain’s activity is not yet fully defined and remains a huge research area. This project attempts to approach and understand the diversifications of brain’s responses while interfering with different situations. The aim is to observe and notice brain’s reactions to an external stimulus. Neural activ ...
Processes Changes in Acetylcholine Extracellular Levels
Processes Changes in Acetylcholine Extracellular Levels

... Measuring the changes in neurotransmitter extracellular levels in discrete brain areas is considered a tool for identifying the neuronal systems involved in specific behavioral responses or cognitive processes. Acetylcholine (ACh) is the first neurotransmitter whose diffusion from the central nervou ...
Practice Questions for Neuro Anatomy Lectures 8,9,11,12 The
Practice Questions for Neuro Anatomy Lectures 8,9,11,12 The

... 30. Fill in the blanks of the following diagram of the above tract with these words: ascend, descend, ipsilaterally, contralaterally, thalamocortical neurons, thalamus, medulla, pons, internal arcuate fibers, external arcuate fibers, cerebellum, anterior, posterior, ventral, medial, primary cortex, ...
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Human brain



The human brain is the main organ of the human nervous system. It is located in the head, protected by the skull. It has the same general structure as the brains of other mammals, but with a more developed cerebral cortex. Large animals such as whales and elephants have larger brains in absolute terms, but when measured using a measure of relative brain size, which compensates for body size, the quotient for the human brain is almost twice as large as that of a bottlenose dolphin, and three times as large as that of a chimpanzee. Much of the size of the human brain comes from the cerebral cortex, especially the frontal lobes, which are associated with executive functions such as self-control, planning, reasoning, and abstract thought. The area of the cerebral cortex devoted to vision, the visual cortex, is also greatly enlarged in humans compared to other animals.The human cerebral cortex is a thick layer of neural tissue that covers most of the brain. This layer is folded in a way that increases the amount of surface that can fit into the volume available. The pattern of folds is similar across individuals, although there are many small variations. The cortex is divided into four lobes – the frontal lobe, parietal lobe, temporal lobe, and occipital lobe. (Some classification systems also include a limbic lobe and treat the insular cortex as a lobe.) Within each lobe are numerous cortical areas, each associated with a particular function, including vision, motor control, and language. The left and right sides of the cortex are broadly similar in shape, and most cortical areas are replicated on both sides. Some areas, though, show strong lateralization, particularly areas that are involved in language. In most people, the left hemisphere is dominant for language, with the right hemisphere playing only a minor role. There are other functions, such as visual-spatial ability, for which the right hemisphere is usually dominant.Despite being protected by the thick bones of the skull, suspended in cerebrospinal fluid, and isolated from the bloodstream by the blood–brain barrier, the human brain is susceptible to damage and disease. The most common forms of physical damage are closed head injuries such as a blow to the head, a stroke, or poisoning by a variety of chemicals which can act as neurotoxins, such as ethanol alcohol. Infection of the brain, though serious, is rare because of the biological barriers which protect it. The human brain is also susceptible to degenerative disorders, such as Parkinson's disease, and Alzheimer's disease, (mostly as the result of aging) and multiple sclerosis. A number of psychiatric conditions, such as schizophrenia and clinical depression, are thought to be associated with brain dysfunctions, although the nature of these is not well understood. The brain can also be the site of brain tumors and these can be benign or malignant.There are some techniques for studying the brain that are used in other animals that are just not suitable for use in humans and vice versa. It is easier to obtain individual brain cells taken from other animals, for study. It is also possible to use invasive techniques in other animals such as inserting electrodes into the brain or disabling certains parts of the brain in order to examine the effects on behaviour – techniques that are not possible to be used in humans. However, only humans can respond to complex verbal instructions or be of use in the study of important brain functions such as language and other complex cognitive tasks, but studies from humans and from other animals, can be of mutual help. Medical imaging technologies such as functional neuroimaging and EEG recordings are important techniques in studying the brain. The complete functional understanding of the human brain is an ongoing challenge for neuroscience.
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