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CHAPTER 4: Physical, Motor, and Sensory Development
CHAPTER 4: Physical, Motor, and Sensory Development

The Nervous System - Peoria Public Schools
The Nervous System - Peoria Public Schools

... • Tiny bones in the ear vibrate, causing the fluid in the cochlea to move in waves. • Hair cells in the fluid cause neurons to send electrical impulses to the brain via the auditory nerve. ...
Kinase clamping
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PSYC 100 Chap. 2 - Traditional method: Observing electrical activity
PSYC 100 Chap. 2 - Traditional method: Observing electrical activity

... neurotransmitters (chemical that transmits information from one neuron to another) > neurot. Are stored in small sacs known as synaptic vesicles 2) neurotransmitters are released when the vesicle fuses with the membrane of the presynaptic neuron and its content spill into synaptic cleft 3) neurotran ...
Shape of Thought
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... they continue at speed, hell-bent for their destination-a single doorway on a tall dendritic building. Once a message arrives, anything or nothing can happen. However enthusiastic, an invitation to join a friend at a nudist camp might not excite you. By disposition, you might not even consider it. L ...
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Nervous system and senses
Nervous system and senses

... spinal cord get the messages from the sense organs. The sense organs are the eyes, ears, skin, tongue, and nose. Each sense organ is associated with a specific sense: vision, hearing, touch, taste, and smell. Special cells in the sense organs detect energy. The energy can be light, heat, sound, chem ...
No Slide Title - World of Teaching
No Slide Title - World of Teaching

... • Drug enhances amount of dopamine in the synapses • Increased dopamine results in increased feelings of pleasure • Nervous system responds by reducing the number of dopamine receptor sites • Addict must take more drug to produce the same “high” • “So while addicts begin by taking drugs to feel high ...
Case Study: John Woodbury - Life Sciences Outreach Program
Case Study: John Woodbury - Life Sciences Outreach Program

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OVERVIEW OF PERIPHERAL NERVOUS SYSTEM Peripheral
OVERVIEW OF PERIPHERAL NERVOUS SYSTEM Peripheral

... The Peripheral Nervous System Nervous structures outside the brain and spinal cord Nerves allow the CNS to receive information and take action Functional components of the PNS – Sensory inputs and motor outputs categorized as somatic or visceral – Sensory inputs also classified as general or special ...
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GROWTH

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11.4: The Peripheral Nervous System
11.4: The Peripheral Nervous System

... enter from each side of the body to form a spinal nerve. Dorsal roots contain sensory fibres and carry sensory information to the CNS. Ventral roots contain motor fibres and carry motor information away from the CNS to initiate movement. These spinal roots are considered the beginning of the PNS. 3. ...
Olfactory network dynamics and the coding of multidimensional
Olfactory network dynamics and the coding of multidimensional

... given a spatiotemporal format because of dynamics that result from internal connectivity within that circuit. • This patterning results in a decorrelation of representations (overlap reduction) over time. At the same time (at least in the locust), the spatial patterns of projection neuron activation ...
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Slide 1

... Occipital lobe - section of the brain located at the rear and bottom of each cerebral hemisphere containing the visual centers of the brain.  Primary visual cortex – processes visual information from the eyes.  Visual association cortex – identifies and makes sense of visual information.  Parieta ...
Chapter 4: The Cytology of Neurons
Chapter 4: The Cytology of Neurons

... Recurrent excitatory input from other motor neuron Both excitatory and inhibitory input from interneurons driven by descending fibers from brain that control and coordinate movement Inhibitory input from Renshaw cells (an interneuron in spinal cord using L-glycine as neurotransmitters) ...
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... • 2.) Sensory neuron  transmits afferent impulses to the CNS • 3.) Integration center  consists of one or more synapses in the CNS • 4.) Motor neuron  conducts efferent impulses from integration center to an effector ...
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Brainsignals, Synaptic Transmission and Short
Brainsignals, Synaptic Transmission and Short

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Neuron highlight

... of spatial and temporal structure of odorant representations (Friedrich, 2006; Spors and Grinvald, 2002). In zebrafish these patterns evolve into more specific representations by about 400 ms and can persist for up to 1.5 s, but the question has arisen that if an animal can do the discrimination in ...
AP Psych Vision Module 13 - Pleasantville High School
AP Psych Vision Module 13 - Pleasantville High School

... break down visual stimuli into small components and have receptive fields with center-surround organization. ...
The Nervous System - Florida International University
The Nervous System - Florida International University

...  Specialized neuronal structures that detect a specific form of energy in either the internal or external environment  Energy is detected by the dendritic end organs of sensory (afferent) neurons  This information is transmitted to the CNS ...
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Special Senses

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Nervous Notes File

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Writing a summary

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Cellular and Systems Neurophysiology Part 13: The Motor
Cellular and Systems Neurophysiology Part 13: The Motor

... As described in the textbook, this example is from a type of neuron that is important for swimming in the lamprey Glutamate is necessary to generate this oscillatory pattern However, glutamate concentration can remain constant, with no pattern Other types of neurons oscillate with no external (synap ...
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Stimulus (physiology)



In physiology, a stimulus (plural stimuli) is a detectable change in the internal or external environment. The ability of an organism or organ to respond to external stimuli is called sensitivity. When a stimulus is applied to a sensory receptor, it normally elicits or influences a reflex via stimulus transduction. These sensory receptors can receive information from outside the body, as in touch receptors found in the skin or light receptors in the eye, as well as from inside the body, as in chemoreceptors and mechanorceptors. An internal stimulus is often the first component of a homeostatic control system. External stimuli are capable of producing systemic responses throughout the body, as in the fight-or-flight response. In order for a stimulus to be detected with high probability, its level must exceed the absolute threshold; if a signal does reach threshold, the information is transmitted to the central nervous system (CNS), where it is integrated and a decision on how to react is made. Although stimuli commonly cause the body to respond, it is the CNS that finally determines whether a signal causes a reaction or not.
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