• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Cortical Maps - White Rose Research Online
Cortical Maps - White Rose Research Online

... the preference of a neuron is the value of the parameter that elicits the maximum response in the neuron. For example, a visual cortex neuron might have a preference for edges at a particular location on the retina, of a particular orientation. The selectivity is then usually defined as the ratio be ...
Self-organization and interareal networks™in™the™primate cortex
Self-organization and interareal networks™in™the™primate cortex

... generally accepted that the physiological function of the cortex is shaped by the pattern of interareal connections. Here, we focus on the SGLs of the cortex that are thought to undergo selective expansion in primates (Dehay and Kennedy, 2007). In a first instance, we review how connection weight de ...
Three Cases of Enduring Memory Impairment after Bilateral Damage
Three Cases of Enduring Memory Impairment after Bilateral Damage

... Extensive, temporally graded retrograde amnesia covering 15 years or more can occur after damage limited to the hippocampal formation. Findings from studies with experimental animals are consistent with the findings from amnesic patients. The present results substantiate the idea that severity of me ...
pdf
pdf

... functional magnetic resonance imaging (fMRI). 䡲 CASE DESCRIPTION: Transcranial magnetic stimulation (TMS) is a noninvasive technique capable of modulating the ongoing activity of the human brain. When linked with a neuronavigation system, fMRI-guided frontal cortex TMS can be performed in a placebo- ...
- Wiley Online Library
- Wiley Online Library

... inspired computational model of interactive skill learning Wai-Tat Fu,1∗ Hyunkyu Lee,1 Walter R. Boot2 and Arthur F. Kramer1 This article reviews recent empirical and brain imaging data on effects of cognitive training methods on complex interactive skill learning, and presents a neurally inspired c ...
Sympathetic Division (cont)
Sympathetic Division (cont)

... ANS has two subdivisions: sympathetic and parasympathetic, usually with opposing effects if they innervate the same structure or organ. The sympathetic division directs your “fight-or-flight” or crisis responses (protective) with widespread, global output. The parasympathetic division directs your “ ...
Impact on Perception, Attention, and Memory
Impact on Perception, Attention, and Memory

... Neural Perspectives on Emotion: Impact on Perception, Attention, and Memory ...
Can the Psycho-Emotional State be Optimized by Regular Use of
Can the Psycho-Emotional State be Optimized by Regular Use of

... all the knowledge achieved during its six decades of history is associated with guided imagery, meanwhile research exploring the efficacy of self-guided is still very limited. Estimation of the potential of self-guided imagery, for example- if the regular practice of imagery containing a positive sc ...
Copy of the full paper
Copy of the full paper

... larger and more complex circuits in higher animals and humans? (1) Alterations in circuit function are often achieved by modifications of both intrinsic and synaptic properties. For example, in the pyloric rhythm of the lobster stomatogastric ganglion, the neuromodulator dopamine influences the stre ...
as pdf - Hypnosis Unit UK
as pdf - Hypnosis Unit UK

... that they are intentionally feigned or malingered conditions. An important question that needs to be addressed in trying to understand conditions such as these is whether it is possible to have a ‘real’ experience of pain that is truly ‘functional’. If this should prove to be the case, the next ques ...
Soghomonian J.J., Sethares C., and Peters, A
Soghomonian J.J., Sethares C., and Peters, A

... axodendritic synapses are lost from the neuropil of layer 2/3 in prefrontal area 46 with age (Peters et al., 2008). Whether there is a similar loss of inhibitory axosomatic synapses from this cortex has not been determined, but a study in primate motor cortex suggests that axosomatic synapses are no ...
Computational modeling of responses in human visual
Computational modeling of responses in human visual

... the pattern that defines the texture within the moving bar. Features such as the temporal frequency, wavelength composition, and so on may excite different populations and influence the pRF parameters. The RF measured using single-unit physiology has a related theoretical status. Each neuron in V1 i ...
The role of temporal parameters in a thalamocortical model of analogy
The role of temporal parameters in a thalamocortical model of analogy

... A more difficult issue is how filtering can be done, i.e., how can input-driven cortical activity be distinguished from cortex-driven cortical activity? As suggested in [27] and [28], the TRN is a promising location where such a filtering can occur. The basic idea is that the reticular neurons recei ...
Rhythms of Waking and Sleep 2 Day Circadian Examples
Rhythms of Waking and Sleep 2 Day Circadian Examples

the diencephalon - Anatomický ústav 1. LF UK
the diencephalon - Anatomický ústav 1. LF UK

... Receives input predominantly from a single source Processed information is sent to a localized region of cortex Are modality specific Specific nuclei (after stimulation sharply localized cortical response) ...
Posttraumatic Stress Disorder: in search of new treatments
Posttraumatic Stress Disorder: in search of new treatments

... 40mg of hydrocortisone in two daily doses; high-dose group took 160mg of hydrocortisone in two daily doses. Participants completed cognitive tests before treatment, after one day of treatment, after four days of treatment, and after a six-day ‘washout’ of treatment. The participants were tested on c ...
Neurochemical excitation of propriospinal neurons facilitates
Neurochemical excitation of propriospinal neurons facilitates

... Relatively little information is available as to which neurotransmitters may be involved in locomotor-related propriospinal transmission. However, assuming the locomotor command signal input to propriospinal neurons is delivered by reticulospinal projections, monoaminergic and/or glutamatergic mecha ...
Kandel ch. 42 - Weizmann Institute of Science
Kandel ch. 42 - Weizmann Institute of Science

... proximal muscles of the body and limbs. The vermis governs posture and locomotion as well as gaze. The adjacent intermediate part of the hemisphere also receives somatosensory input from the limbs. This region projects via the interposed nucleus to lateral corticospinal and rubrospinal systems and t ...
Some Analogies Between Visual Cortical and Genetic Maps
Some Analogies Between Visual Cortical and Genetic Maps

... are replicas of an ancient gene for a receptor protein. 31 The genes for the red and green receptor proteins are located adjacent to each other on the X chromosome and have a 96% sequence homology.32 Many individuals have up to three slightly different versions of the gene for the green receptor pro ...
KIDS, Inc. - School Neuropsych
KIDS, Inc. - School Neuropsych

... formation) – Mixture of fibers and cells in the brainstem with fibers from the spinal cord passing through the brainstem on their way to the forebrain and fibers from the forebrain passing through the brainstem on their way to the spinal cord. •  RAS comprises a major portion of the medulla and exte ...
Neurons of human nucleus accumbens
Neurons of human nucleus accumbens

... Background/Aim. Nucleus accumbens is a part of the ventral striatum also known as a drug active brain region, especially related with drug addiction. The aim of the study was to investigate the Golgi morphology of the nucleus accumbens neurons. Methods. The study was performed on the frontal and sag ...
Multimodal functional and structural neuroimaging investigation of major depressive
Multimodal functional and structural neuroimaging investigation of major depressive

... the development of prognostic and diagnostic biomarkers [6,7]. Within the neural circuitry of MDD, the intensity of engagement and their regional distribution depend in part on the emotional and cognitive features of the particular task. For example, in response to negative stimuli, MDD patients ten ...
Pioneers of cortical plasticity: six classic papers by Wiesel and Hubel
Pioneers of cortical plasticity: six classic papers by Wiesel and Hubel

... they showed a consistent shift toward dominance by the nondeprived eye, many cells lacked orientation sensitivity, and, as in the binocularly deprived animals, many cells were unresponsive. The second paper of this second series asked if the activity arriving at the cortex through the two eyes had t ...
THE DIENCEPHALON
THE DIENCEPHALON

... MGN, LGN, VPL, VPM, VL, VA Receives input predominantly from a single source Processed information is sent to a localized region of cortex Are modality specific Specific nuclei (after stimulation sharply localized cortical response) ...
Cerebellum
Cerebellum

... fibers from the cerebral cortex to the spinal cord are crossed, the deficits produced by the lesions of the intermediate zone affects limbs on the same side of the lesion. The spinocerebellum controls the execution of movement and regulates muscle tone. It carries out these functions by regulating t ...
< 1 ... 64 65 66 67 68 69 70 71 72 ... 353 >

Aging brain

Age is a major risk factor for most common neurodegenerative diseases, including Mild cognitive impairment, Alzheimer's disease, cerebrovascular disease, Parkinson's disease and Lou Gehrig's disease. While much research has focused on diseases of aging, there are few informative studies on the molecular biology of the aging brain (usually spelled ageing brain in British English) in the absence of neurodegenerative disease or the neuropsychological profile of healthy older adults. However, research does suggest that the aging process is associated with several structural, chemical, and functional changes in the brain as well as a host of neurocognitive changes. Recent reports in model organisms suggest that as organisms age, there are distinct changes in the expression of genes at the single neuron level. This page is devoted to reviewing the changes associated with healthy aging.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report