WordNet

an automatic instinctive unlearned reaction to a stimulus (同)reflex response, reflex action, instinctive reflex, innate reflex, inborn reflex, unconditioned_reflex, physiological reaction
a remedy for hearing loss or deafness
of or relating to the science of acoustics; "acoustic properties of a hall" (同)acoustical
the property of something that has been weakened or reduced in thickness or density
weakening in force or intensity; "attenuation in the volume of the sound" (同)fading
the study of the physical properties of sound
(of leaves) bent downward and outward more than 90 degrees

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Individual difference in prepulse inhibition does not predict spatial learning and memory performance in C57BL/6 mice.

Peleg-Raibstein D1, Philipp S, Feldon J, Yee BK.
Cognitive, affective & behavioral neuroscience.Cogn Affect Behav Neurosci.2015 Apr 17. [Epub ahead of print]
The startle reflex to an intense acoustic pulse stimulus is attenuated if the pulse stimulus is shortly preceded by a weak non-startling prepulse stimulus. This attenuation of the startle reflex represents a form of pre-attentional sensory gating known as prepulse inhibition (PPI). Although PPI does
PMID 25893564

Event-related potentials to acoustic startle probes during the anticipation of predictable and unpredictable threat.

Nelson BD1, Hajcak G, Shankman SA.
Psychophysiology.Psychophysiology.2015 Feb 22. doi: 10.1111/psyp.12418. [Epub ahead of print]
The startle reflex is a robust measure of defense system activation. Startle probes also elicit ERP P300 and N100 responses that capture attentional engagement. The startle probe-elicited P300 and N100 have been primarily examined during affective picture viewing paradigms, and no study has examined
PMID 25703182

Sege CT1, Bradley MM, Lang PJ.
Psychophysiology.Psychophysiology.2014 Oct;51(10):977-81. doi: 10.1111/psyp.12244. Epub 2014 Jul 1.
The startle reflex is potentiated when anticipating emotional, compared to neutral, pictures. This study investigated the time course of reflex modulation during anticipation and the impact of informative cuing on picture perception. Colors were used to signal the thematic content of emotional and n
PMID 24980898

川瀬哲明
耳鼻咽喉科臨床 102(7), 505-513, 2009-07-01
… Contraction of the stapedius muscle causes attenuation of the low frequency component of the input signal by increasing the stiffness of the ossicular chain. … The effects of the acoustic reflex have been investigated for many years and a number of hypotheses have been proposed. … Two of these hypotheses are: (1) that this reflex helps to protect the ear from acoustic injuries and (2) that it aids in the control of masking. …
NAID 10025096507

和田広巳
耳鼻と臨床 34(1Supplement1), 142-153, 1988
… Using chronic electrodes placed on the round window membrane, changes of the cochlear microphonics (CM) and acoustic middle ear muscle reflex (AR) were measured following application of repeated sound in rabbits. … This attenuation tended to become larger when the sound intensity exposed was stronger. … 5) Recovery of CM amplitude has a relationship with that of AR attenuation. …
NAID 130004403328

北村溥之,斎藤春雄,東辻英郎,宮本和雄,岸本誠司,上田幹夫
AUDIOLOGY JAPAN 20(2), 110-114, 1977
… The intra-aural reflex is attributed mainly to the stapedius muscle in man.Using Grason-Stadler Otoadmittance Meter 1720, the response resembling the acoustic stapedius reflex was recorded from the ear on which the stapedectomy operation had been performed. … But when acoustic stimulus was delivered through the earplug type earphone with high interaural attenuation, no response was detected. …
NAID 130003859450