• 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
Somatic sensations
Somatic sensations

... Private Eyes Iris scanning is one of the newest security techniques. ...
Behavior Genetics
Behavior Genetics

... Gender identity: one’s sense of being male or female. (Some claim to be born in the wrong body because they can’t identify their gender to match their genitalia) Socialization has become a means of manipulation, making actions “socially acceptable” -“Moreover, if socialized to value lifelong commitm ...
chapter the nervous system and the effects of drugs
chapter the nervous system and the effects of drugs

... The nervous system is like a very complicated computer. As in a computer, electrical signals travel throughout the system. Instead of the wires you would see in a computer, the nervous system is made up of nerve cells, or neurons. The neurons have gaps between them, called synapses, which an electri ...
create opposite responses in the effectors
create opposite responses in the effectors

... eating a meal ...
Nervous System - Winston Knoll Collegiate
Nervous System - Winston Knoll Collegiate

... produce a response  As well, these experiments indicated that the response is often an all-or-none response  In other words, either the response (such as muscle contraction) would either not be present (when the threshold level had not been reached) or at maximum intensity (at any level above the ...
Complex Cell-like Direction Selectivity through Spike
Complex Cell-like Direction Selectivity through Spike

... Finally, many complex cells continue to exhibit responses when simple cells are silenced via pharmacological inactivation of corresponding input cells in the LGN. suggesting direct inputs to complex cells from the LGN ...
sensation.
sensation.

... Did you write “The cat was the rat”? If you did you were incorrect. The correct answer is: “The cat SAW the rat” ...
53 XIX BLY 122 Lecture Notes (O`Brien)
53 XIX BLY 122 Lecture Notes (O`Brien)

... (1) Two hemispheres (2) Corpus callosum: neurons that connect 2 hemispheres ...
anatomy of a neuron worksheet
anatomy of a neuron worksheet

... may cause the skeletal muscles to contract, the internal organs to operate, or the glands to release their chemicals. In many ways, a neuron is like an electric wire. Although electric wires and neurons carry signals in different ways, their basic jobs are the same; to carry electricity. An electric ...
Visual vs. Language-based Thinking
Visual vs. Language-based Thinking

... dynamic and static visualizations. The mixed findings concerning the effectiveness of instructional animations have been a puzzle for some time. At least a partial solution to that puzzle may be provided by the suggestion that the mirror neuron system assists in acquiring motor skills by observation ...
Brainwaves ("40 Hz") Research
Brainwaves ("40 Hz") Research

... Introduction Single unit recordings in vivo have revealed much about the events or features to which neurons respond. Individual neurons do not detect their preferred sensory features in isolation. They form part of neuronal networks whose emergent properties define the feature detection properties ...
The biological Approach
The biological Approach

... Neurotransmitters • Neurotransmitters are brain chemicals released from synaptic vesicles that relay signals across the synapse from one neuron to another. • Neurotransmitters can be broadly divided into those that perform an excitatory functions and those that perform an inhibitory function. • For ...
Leaving Certificate Biology Photosynthesis Quiz
Leaving Certificate Biology Photosynthesis Quiz

... Nervous System 1 iQuiz FIRST In PowerPoint 2007 if you see a Security Warning click HERE on Options… and then click on  Enable this content ...
Brain Structure and Function
Brain Structure and Function

... Barlow and Durand (2005). Abnormal Psychology, and intergrated ...
biology lecture notes chapter 2
biology lecture notes chapter 2

... the time it takes to set them all back up before you are able to knock them over again. ...
Unit 2-Week 1 Notes Sheets
Unit 2-Week 1 Notes Sheets

... - Nerve Impulse  Axon  Axon Terminal  Release Neurotransmitter ...
Chp 9: NERVOUS TISSUE
Chp 9: NERVOUS TISSUE

... of the eye, inner ear, olfactory area of brain  ______________________________: dendrites and one axon fused together forming a continuous process that emerges from cell body; begin in embryo as bipolar neurons; most function as sensory receptors for touch, pressure, pain, or thermal stimuli. Cell ...
download file
download file

... Fig. 1. (A, C, E, and G) Representative maps of A1 that show the effects of pairing 9-kHz tones with electrical stimulation of the NB. (A) Representative map from an experimentally naı̈ve rat demonstrating the normal orderly progression of BFs recorded in the rat A1. Each polygon represents one elec ...
Tail Region of the Primary Somatosensory Cortex and Its Relation to
Tail Region of the Primary Somatosensory Cortex and Its Relation to

... area of the SI. Therefore, there are about 94 000 neurons in the estimated 0.8 mm2 of the SI that are involved in processing sensory signals from the tail. Anteroposteriorly oriented, evenly spaced 16-channel microwires were chronically implanted in the frontoparietooccipital cortex that was centere ...
Chapter 48 Nervous System
Chapter 48 Nervous System

... The nervous, endocrine and immune systems often cooperate and interact in regulating internal body functions to maintain homeostasis. The ability of an organism to survive and maintain homeostasis depends largely on how it responds to internal and external stimuli. A stimulus is an agent or a change ...
How Simple Cells Are Made in a Nonlinear Network Model of the
How Simple Cells Are Made in a Nonlinear Network Model of the

... of interest, such as stimulus intensity.) Figure 1A shows the response to contrast reversal stimulation of the cell by a standing pattern at optimal orientation, spatial, and temporal frequency. (Defined more precisely below, “contrast reversal” is the temporal modulation of a standing grating patte ...
Tricas 2008
Tricas 2008

... filters the electrosensory information of a moving target across the skin. Midbrain cells perform a temporal analysis of information from one receptor that is equivalent to a spatial analysis of an array parallel to the movement direction of the object as it moves across the snout. The temporal filter ...
Invertebrate nervous systems:
Invertebrate nervous systems:

... Briefly, the modifications were these:1.The hindbrain became divided into a ventral portion, called the medulla oblongata, a dorsal portion, the cerebellum, and the anterior pons. The medulla became specialized as a control center for some autonomic and somatic pathways concerned with vital function ...
Nervous Systems: Cells and Functions
Nervous Systems: Cells and Functions

... • The axon usually carries information away from the cell body. • Axons conduct information to target cells, which can be other neurons, muscle cells, or gland cells. • At its end, the axon divides into many fine nerve endings. At the tip of each nerve ending is a swelling called the axon terminal. ...
Cerebral Cortex and Corpus Callosum
Cerebral Cortex and Corpus Callosum

... The top of the cortex begins with your toes and each body part has a location along the cortex until it reaches the face and tongue. The sensory cortex on the right side of the brain receives sensations from the left side of your body whereas the mirror image on the left side of your brain receives ...
< 1 ... 414 415 416 417 418 419 420 421 422 ... 554 >

Feature detection (nervous system)

Feature detection is a process by which the nervous system sorts or filters complex natural stimuli in order to extract behaviorally relevant cues that have a high probability of being associated with important objects or organisms in their environment, as opposed to irrelevant background or noise. Feature detectors are individual neurons – or groups of neurons – in the brain which code for perceptually significant stimuli. Early in the sensory pathway feature detectors tend to have simple properties; later they become more and more complex as the features to which they respond become more and more specific. For example, simple cells in the visual cortex of the domestic cat (Felis catus), respond to edges – a feature which is more likely to occur in objects and organisms in the environment. By contrast, the background of a natural visual environment tends to be noisy – emphasizing high spatial frequencies but lacking in extended edges. Responding selectively to an extended edge – either a bright line on a dark background, or the reverse – highlights objects that are near or very large. Edge detectors are useful to a cat, because edges do not occur often in the background “noise” of the visual environment, which is of little consequence to the animal.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report