Results 21 to 30 of about 8,870 (266)
Modulation of physiological reflexes by pain: role of the locus coeruleus
The locus coeruleus is activated by noxious stimuli, and this activation leads to inhibition of perceived pain. As two physiological reflexes, the acoustic startle reflex and the pupillary light reflex, are sensitive to noxious stimuli, this sensitivity,
Elemer eSzabadi
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Background Autonomous reflexes enable animals to respond quickly to potential threats, prevent injury and mediate fight or flight responses. Intense acoustic stimuli with sudden onsets elicit a startle reflex while stimuli of similar intensity but with ...
Janik Vincent M, Götz Thomas
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Hypnotizability, hypnosis and prepulse inhibition of the startle reflex in healthy women: an ERP analysis. [PDF]
A working model of the neurophysiology of hypnosis suggests that highly hypnotizable individuals (HHs) have more effective frontal attentional systems implementing control, monitoring performance, and inhibiting unwanted stimuli from conscious awareness,
Vilfredo De Pascalis, Emanuela Russo
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Habituation of the startle reflex depends on attention in cannabis users
Background Cannabis use is associated with an attention-dependent deficit in prepulse inhibition of the startle reflex (PPI). The aim of the current study was to investigate startle habituation in cannabis users and healthy controls during two ...
Karina K. Kedzior +2 more
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Slow cortical potential biofeedback and the startle reflex [PDF]
The negativity of slow cortical potentials (SCP) of the surface EEG is a measure of brain excitability, correlating with motor and cognitive preparation. Self-control of SCP positivity has been shown to reduce seizure activity. Following SCP biofeedback from a central EEG electrode position, subjects gained bidirectional control over their SCP.
S, Brody +5 more
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Interactions between stretch and startle reflexes produce task-appropriate rapid postural reactions
Neural pathways underpinning startle reflex and limb stretch reflexes evolved independently and have served vastly different purposes. In their most basic form, the pathways responsible for these reflex responses are relatively simple processing units ...
Jonathan eShemmell
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Quantifying the Acoustic Startle Response in Mice Using Standard Digital Video
The startle response is an unconditional reflex, characterized by the rapid contraction of facial and skeletal muscles, to a sudden and intense startling stimulus.
Madeline M. Pantoni +5 more
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Shift work-like patterns effect on female and male mouse behavior
Shift work (work outside of standard daylight hours) is common throughout the Western world. However, there are notable health consequences to shift work, including increased prevalence of mental health and sleep disorders in shift worker populations ...
Gareth Banks +2 more
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THE HYPEREKPLEXIAS AND THEIR RELATIONSHIP TO THE NORMAL STARTLE REFLEX
The startle response to unexpected auditory and somaesthetic stimulation was studied in 8 patients with hereditary or symptomatic hyperekplexia. It was abnormal in its resistance to habituation and in its exaggerated motor response. Both noise and taps to the face and head elicited a normal early blink response, separate from the subsequent true ...
Brown, P +5 more
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THE EFFECTS OF LEFT VS. RIGHT EAR STIMULATION ON HUMAN STARTLE REFLEX MODULATION [PDF]
It has been reported previously that modulatory effects of pleasant and unpleasant slides on the human acoustic reflex are observed only if startle probes are presented to the left ear or with binaural presentation. The present study examined the effects
H. Kaviani +1 more
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