• 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
Cerebellum
Cerebellum

... Dysarthria and scanning speech Nystagmus Hypotonia Cerebellar ataxia (Romberg test) Dysmetria Diplopia Cognitive dysfunction ...
PNS
PNS

... from changes in muscle length creating generator potentials ii. Opioid receptors are throughout body, but ...
Evolution might select constructivism
Evolution might select constructivism

... constructivism and demote the process of neural selectionism Quartz & Sejnowski (Q&S) make several unjustified attacks on the role of the synapse in development. To begin with, they point out that the studies of pruning in human prefrontal cortex (sect. 2.1.1 para. 5) are inadequate and do not have ...
The Neuromodulatory Basis of Emotion
The Neuromodulatory Basis of Emotion

... suggested more specifically that the activation by the catecholamine systems of the hypothalamus play a major role in the association of drives and reward (20). The "drive reduction theory of reward," indeed, presents norepinephrine (from the pons and medulla) as a neuroactive substance released whe ...
neural and chemical regulation of respiration
neural and chemical regulation of respiration

... They respond when PO2 decreases to less than 60mmHg DECREASE IN ARTERIAL PO2 If arterial PO2 is b/w 100 and 60mmhg, the breathing rate is relatively constant. However, if arterial po2 is less than 60mmhg, the breathing rate increases in a very steep and linear fashion. In this range of po2 pc are ve ...
CNS Slide Show
CNS Slide Show

... – astrocytes reach out and contact capillaries with their perivascular feet – endothelial cells can exclude harmful substances from passing to the brain ...
Document
Document

... Charles Berlin, Ph.D. July 2011 ...
Biology 12 - Excretion
Biology 12 - Excretion

... receives and transmits sensory information to sensory neuron muscle or gland attached to motor neuron Branch of PNS, consists of nerves that connect to skeletal muscles and sensory viscera functional unit of nervous system branch of PNS, connects to smooth muscle, contains Parasymp. and Symp. branch ...
Fridtjof Nansen Science Symposium 2011
Fridtjof Nansen Science Symposium 2011

... to modern neuroscientist is to understand the function and mode of operation of such circuits in the complex mammalian brain. For locomotor behaviors, like walking, motor circuits in the spinal cord itself generate the actual timing and coordination of the rhythmic muscle activity. Excitatory neurot ...
The Mechanical Senses
The Mechanical Senses

... second) even though no individual axon approaches that frequency by itself. – provides justification for the place theory ...
Lecture 9B
Lecture 9B

... Myelination is nearly completed by birth in most species in which the young are relatively mature and mobile from the moment of birth, such as wild mice and horses. In humans, myelination is delayed considerably. Few fibers are myelinated at birth and some brain regions continue myelination well int ...
This Week in The Journal Cellular/Molecular The N-Terminal Portion of A ␤
This Week in The Journal Cellular/Molecular The N-Terminal Portion of A ␤

... Research from the previous decade suggests that word meaning is partially stored in distributed modality-specific cortical networks. However, little is known about the mechanisms by which semantic content from multiple modalities is integrated into a coherent multisensory representation. Therefore w ...
08_chapter 2
08_chapter 2

... The frontal lobe lies anterior to the central or Rolandic sulcus, the temporal lobe, below the lateral sulcus. (fissure of sylvius) in the depth of which is the insula. The parietal lobe lies behind the central sulcus, but the division between it and the posterior part of the temporal lobe is not we ...
Chocolate Chip Cookie Review
Chocolate Chip Cookie Review

... 3. Of what system are these neurons a part of? 4. When you touch your cookie, the sensation of touch involves what action on the part of individual neurons? 5. What part of the neuron receives the stimulus? 6. What part of the neuron decides whether to fire? 7. Down what part of the neuron does the ...
The Limits of Intelligence
The Limits of Intelligence

... the late 19th century and the early 20th century exploring universal themes of life—mathematical laws related to body mass, and to brain mass in particular, that run across the animal kingdom. One advanWhether they are smarter or not, larger animals typically have larger brains, tage of size is that ...
Checkpoint Answers
Checkpoint Answers

... • 1. Which of the following neurotransmitters is NOT associated with cerebral nuclei function? A. dopamine B. GABA *C. acetylcholine D. glutamate • 2. Destruction of Wernicke's area destroys language comprehension. T • 3. Damage to the limbic system may result in an absence of fear. T • 4. Knowing h ...
Brain: The Inside Story Educator`s Guide
Brain: The Inside Story Educator`s Guide

... your nervous system, across an immensely complex network: from your body to your brain, within your brain, and from your brain out to your muscles and organs. Although you look with your eyes and listen with your ears, it’s your brain that interprets sensory information, enabling you to see and to h ...
Alcoholism - Boston University Medical Campus
Alcoholism - Boston University Medical Campus

... subcortical circuits the Extended Reward and Oversight System (EROS). Furthermore, because there is overlap among the brain regions involved in memory, emotion, and sensitivity to reinforcement, these functions could be adversely impacted by damage to the relevant cortical and subcortical gray matte ...
Introduction to Psychology
Introduction to Psychology

... 6. How would a psychologist who takes the biological perspective in behavior explain a person suffering from ...
CHAPTER 4
CHAPTER 4

... – The receptors for smell are located in two 1-inch-square patches of tissue in upper most part of nasal passages – Mucus covers olfactory cells – Olfactory cells  olfactory bulbs  primary olfactory cortex (underneath brain)  transforms nerve impulses into olfactory sensations ...
whisker outline.doc
whisker outline.doc

... Our present picture of neuronal plasticity in the brain somatosensory cortex is for the most part based on studies of neurophysiology on cortical layer 4. The significance of my dissertation is that it incorporates some biochemical findings from layers 2/3, that relate to recent observations from ne ...
Ch. 8 The Nervous System
Ch. 8 The Nervous System

... • Integrative areas, usually only in the left ...
FIRST BRAIN-TO-BRAIN INTERFACE ALLOWS TRANSMISSION
FIRST BRAIN-TO-BRAIN INTERFACE ALLOWS TRANSMISSION

... computer solves a puzzle in a 'non-Turing' way," he said. A "Turing machine" is the classical model for a computer, in which a computer operates on data using a set of predetermined instructions—also known as an algorithm—to arrive at a solution. "But in this case, we are not inputting instructions, ...
O rganization of the nervous system To go toward
O rganization of the nervous system To go toward

... Nervous tissue destruction occurs ...
Walter J. Freeman Journal Article e-Reprint
Walter J. Freeman Journal Article e-Reprint

... those from other sensory systems. The result is a meaning-laden perception, a gestalt, that is unique to each individual. For a dog, the recognition of the scent of a fox may carry the memory of food and expectation of a meal. For a rabbit, the same scent may arouse memories of chase and fear of att ...
< 1 ... 174 175 176 177 178 179 180 181 182 ... 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