Auropalpebral reflex | definition of auropalpebral reflex by Medical dictionary
a form of the wink reflex in which there is a contraction, sometimes very slight, of the orbicularis palpebrarum muscle to an intense sound.
See also: startle reflex
au·ro·pal·pe·bral re·flex (awr'ō-pal'pĕ-brăl rē'fleks)
Brisk closure of the eyes in reaction to sudden presentation of a loud noise.
References in periodicals archive
a) Reflex responses and innate automatism: auropalpebral reflex and startle reflex
The results considered suggestive of central auditory involvement were as follows: exacerbated response; long latency response; difficulty in localizing the sound source in the absence of hearing loss; a lack of habituation to repetitive stimulation; no auropalpebral reflex in cases of normal hearing acuity .