During the scientific research phase of his career, he tried to answer the question of whether man had a hidden aquatic potential that could be evoked by rigorous physiological and psychological training.

Many tests involve carrying out an EMG to read the evoked potential recordings.

If used in the primary motor cortex, it produces muscle activity referred to as a motor evoked potential ( MEP ) which can be recorded on electromyography.

An evoked potential or evoked response is an electrical potential recorded from the nervous system of a human or other animal following presentation of a stimulus, as distinct from spontaneous potentials as detected by electroencephalography ( EEG ), electromyography ( EMG ), or other electrophysiological recording method.

Usually the term " evoked potential " is reserved for responses involving either recording from, or stimulation of, central nervous system structures.

Sensory evoked potentials ( SEP ) are recorded from the central nervous system following stimulation of sense organs ( for example, visual evoked potentials elicited by a flashing light or changing pattern on a monitor ; auditory evoked potentials by a click or tone stimulus presented through earphones ) or by tactile or somatosensory evoked potential ( SSEP ) elicited by tactile or electrical stimulation of a sensory or mixed nerve in the periphery.

An evoked potential is the electrical response of the brain to a sensory stimulus.

Regan constructed an analogue Fourier series analyzer to record harmonics of the evoked potential to flickering ( sinusoidally modulated ) light but, rather than integrating the sine and cosine products, fed them to a two-pen recorder via lowpass filters.

By analogy with the steady-state response of a resonant circuit that follows the initial transient response he defined an idealized steady-state evoked potential ( SSEP ) as a form of response to repetitive sensory stimulation in which the constituent frequency components of the response remain constant with time in both amplitude and phase.

Since a SSEP can be completely described in terms of the amplitude and phase of each frequency component it can be quantified more unequivocally than an averaged transient evoked potential.

A plot of, for example, response amplitude versus the check size of a stimulus checkerboard pattern plot can be obtained in 10 seconds, far faster than when time-domain averaging is used to record an evoked potential for each of several check sizes.

Then the size of the squares was progressively increased so as to give a plot of evoked potential amplitude versus check size ( hence “ sweep ”).

* Sweep visual evoked potential

* Binocular visual evoked potential

* Chromatic visual evoked potential

* Hemi-field visual evoked potential

* Flash visual evoked potential

* LED Goggle visual evoked potential

* Motion visual evoked potential

Can we discover what it is in Utopia that has evoked this response??

The recent publicity attending the successful federal prosecution of a conspiracy indictment against a number of electrical manufacturers has evoked a new respect for the anti-trust laws that is justified neither by their rationale nor by the results they have obtained.

The empathy-altruism hypothesis basically states that psychological altruism does exist and is evoked by the empathic desire to help someone who is suffering.

He also formulated the Monroe Doctrine, which is still evoked to the present day.

Yet a contemporary atmosphere of Spanish convivencia is evoked by the inclusion nobility, rogues, vagrants, young and old, men, women, Christian, Muslim, and Jewish characters.

Pain evoked by the ( faster ) A-delta fibers is described as sharp and is felt first.

In contrast to her encyclopaedic knowledge of the social distinctions of London's street names, Jack's obscure parentage is subtly evoked.

This also includes the condition in which people are compelled to work against their will by a " climate of fear " evoked by the use of force, the threat of force, or the threat of legal coercion ( i. e., suffer legal consequences unless compliant with demands made upon them ) which is sufficient to compel service against a person's will.

The researchers conclude that " the main cause of neuron death is convulsions evoked by electric shocks.

Magenta, a purple color with a pink hue, is a color evoked by light having less power in green wavelengths than in blue / violet and red wavelengths ( complements of magenta have wavelength 500 – 530 nm ).

One response to this argument is that it equivocates on the notions of abilities and necessities, or that the free will evoked to make any given choice is really an illusion and the choice had been made all along, oblivious to its " decider ".

The key Chapter 15 is entitled " On an experiment, in which these potencies, listed above, can be evoked by the rubbing of a sulphur ball.

( see Morphogenetic field ) However, the failure to replicate his findings and the fact that, though cell growth can be stimulated and directed by radiation this is possible only at much higher amplitudes, evoked a general skepticism about Gurwitsch's work.

Microsoft has received a great deal of bad press surrounding their Palladium software architecture, evoking comments such as " Few pieces of vaporware have evoked a higher level of fear and uncertainty than Microsoft's Palladium ", " Palladium is a plot to take over cyberspace ", and " Palladium will keep us from running any software not personally approved by Bill Gates ".

Lisa S. Starks reads the film as a revisionist horror movie and feels that Taymor is herself part of the process of twentieth century re-evaluation of the play ; " in adapting a play that has traditionally evoked critical condemnation, Taymor calls into question that judgement, thereby opening up the possibility for new readings and considerations of the play within the Shakespeare canon.

Head and Rivers noted that the thrill evoked by aesthetic pleasure is " accompanied by the erection of hairs " and they noted that this reaction was no greater in the area of skin with protopathic sensibility than it was in the area of the more evolved epicritic, making it a purely psychologically based phenomena.

It was this meaning that was evoked by the Saint Simonian Olinde Rodrigues in his essay, " L ' artiste, le savant et l ' industriel ", (“ The artist, the scientist and the industrialist ”, 1825 ) which contains the first recorded use of " avant-garde " in its now-customary sense: there, Rodrigues calls on artists to " serve as people's avant-garde ", insisting that " the power of the arts is indeed the most immediate and fastest way " to social, political, and economic reform.

He may also have printed Burlington Gate ( 1731 ), evoked by Alexander Pope's Epistle to Lord Burlington, and defending Lord Chandos, who is therein satirized.

" Old Florida " is a phrase often evoked in describing Gulfport's waterfront district, with its mix of small-scale cottages and small independent shops, restaurants and other businesses, situated among mature oak trees and brick-paved streets.

Judeo-Christian imagery is evoked: Gethsemane, The Last Supper, Rites of Lilith, as are Egyptian ( Room in Karnak ) and Syrian ( The Syrian Bull ).

The same concept of idealized beauty is evoked in a virginally pensive Judith from the Hermitage Museum, a large painting which exhibits Giorgione's special qualities of color richness and landscape romance, while demonstrating that life and death are each other's companions rather than foes.

These changes can act upon the brain ’ s early stages of information processing: Research using evoked brain potentials upon painful laser pulses, for example, finds placebo effects upon the N2 – P2, a biphasic negative – positive complex response, the N2 peak of which is at about 230 ms, and the P2 one at about 380 ms.