Related Experiment Video

Updated: Jul 21, 2026

Intra-Operative Behavioral Tasks in Awake Humans Undergoing Deep Brain Stimulation Surgery
12:04

Intra-Operative Behavioral Tasks in Awake Humans Undergoing Deep Brain Stimulation Surgery

Published on: January 6, 2011

Arousal effects on evoked activity in a "nonsensory" system

G P FROMMER, R B LIVINGSTON

    Science (New York, N.Y.)
    |February 8, 1963
    PubMed

    Keywords:
    CEREBELLUMCEREBRAL CORTEXELECTROENCEPHALOGRAPHY

    More Related Videos

    Induction of an Isoelectric Brain State to Investigate the Impact of Endogenous Synaptic Activity on Neuronal Excitability In Vivo10:19

    Induction of an Isoelectric Brain State to Investigate the Impact of Endogenous Synaptic Activity on Neuronal Excitability In Vivo

    Published on: March 31, 2016

    Transauricular Vagus Nerve Stimulation and Electroencephalographic Assessment in Disorders of Consciousness04:04

    Transauricular Vagus Nerve Stimulation and Electroencephalographic Assessment in Disorders of Consciousness

    Published on: July 11, 2025

    Related Concept Videos

    The Sympathetic Nervous System01:25

    The Sympathetic Nervous System

    Overview
    What is a Sensory System?01:31

    What is a Sensory System?

    Sensory systems detect stimuli—such as light and sound waves—and transduce them into neural signals that can be interpreted by the nervous system. In addition to external stimuli detected by the senses, some sensory systems detect internal stimuli—such as the proprioceptors in muscles and tendons that send feedback about limb position.
    Autonomic Nervous System01:22

    Autonomic Nervous System

    The autonomic nervous system (ANS) is a critical component of the peripheral nervous system, primarily responsible for regulating involuntary bodily functions and maintaining homeostasis. It functions in tandem with the central nervous system (CNS) to seamlessly coordinate various physiological processes without the need for conscious control.
    The ANS comprises two main divisions: the sympathetic and parasympathetic divisions. These divisions function antagonistically to maintain a dynamic...
    Sympathetic Activation01:16

    Sympathetic Activation

    The sympathetic division can influence tissues and organs by releasing norepinephrine at peripheral synapses and distributing epinephrine and norepinephrine through the bloodstream. In times of crisis or stress, sympathetic activation occurs, which is regulated by sympathetic centers in the hypothalamus. As a result, sympathetic activation prepares the body for physical exertion, rapid ATP production, and heightened alertness, allowing individuals to respond effectively to challenging or...
    Sensation01:21

    Sensation

    Sensory receptors are specialized neurons that respond to specific types of external stimuli, initiating the process known as sensation. This occurs when sensory input, such as light entering the eye, is detected by these receptors, causing chemical changes in the cells of the retina. These cells then convert the sensory stimulus into action potentials that are transmitted to the central nervous system, a process termed transduction.
    Absolute thresholds can quantify the sensitivity of sensory...
    Optimal Arousal Theory01:23

    Optimal Arousal Theory

    The optimal arousal theory suggests that performance is maximized when an individual experiences a moderate level of arousal. This theory is closely tied to the Yerkes-Dodson law, which illustrates an inverted U-shaped relationship between arousal and performance. The law, formulated by psychologists Robert Yerkes and John Dodson, implies an ideal arousal level for optimal performance, and deviations from this level can lead to declines in effectiveness.
    Inverted U-Shaped Performance Curve
    The...