startle reflexn.

Brit.

/ˈstɑːtl ˌriːflɛks/, U.S.

/ˈstɑrdl ˌriflɛks/

Origin: Formed within English, by compounding. Etymons: startle v., reflex n.

Etymology: < startle v. + reflex n.

An involuntary reaction to a sudden stimulus, esp. a loud noise, often involving contraction of groups of muscles of the limbs and neck; a similar reaction shown by an animal. Cf. startle response n.In human infants this reaction is also called the Moro reflex (see Moro n.⁴) and is characterized by distinctive movements of the arms and legs.

ΘΚΠ

the world > life > biology > biological processes > action of nervous system > [noun] > reflex action > type of

ankle jerk1882

spinal reflex1898

research knee-jerk1899

Hoffmann('s) reflex1900

unconditioned reflex1906

startle reflex1917

startle response1933

1917 Mil. Surgeon 41 737 The loss of motor control seen in the tremendously exaggerated forms of the dodging- or startle-reflex constitutes one of the most striking and constant symptoms of the conditions for which we should perhaps reserve the name ‘shell shock’.

1967 G. A. Kimble in Found. Conditioning & Learning i. 9 It is quite likely that the initial magnitude of the startle reflex in the nervous lady was somewhat greater than it would have been in a more stolid person.

1980 Brit. Med. Jrnl. 5 Apr. 1002 The normal infant will respond to sounds by stopping crying, opening his eyes widely or by a startle reflex, depending on the intensity of the sound.

2009 New Yorker 9 Feb. 45/1 This time the rat had a much smaller startle reflex, seen on the computer as a low peak.

This is a new entry (OED Third Edition, September 2016; most recently modified version published online March 2022).

单词	startle reflex
释义	startle reflexn. Brit. /ˈstɑːtl ˌriːflɛks/, U.S. /ˈstɑrdl ˌriflɛks/ Origin: Formed within English, by compounding. Etymons: startle v., reflex n. Etymology: < startle v. + reflex n. An involuntary reaction to a sudden stimulus, esp. a loud noise, often involving contraction of groups of muscles of the limbs and neck; a similar reaction shown by an animal. Cf. startle response n.In human infants this reaction is also called the Moro reflex (see Moro n.⁴) and is characterized by distinctive movements of the arms and legs. ΘΚΠ the world > life > biology > biological processes > action of nervous system > [noun] > reflex action > type of ankle jerk1882 spinal reflex1898 research knee-jerk1899 Hoffmann('s) reflex1900 unconditioned reflex1906 startle reflex1917 startle response1933 1917 Mil. Surgeon 41 737 The loss of motor control seen in the tremendously exaggerated forms of the dodging- or startle-reflex constitutes one of the most striking and constant symptoms of the conditions for which we should perhaps reserve the name ‘shell shock’. 1967 G. A. Kimble in Found. Conditioning & Learning i. 9 It is quite likely that the initial magnitude of the startle reflex in the nervous lady was somewhat greater than it would have been in a more stolid person. 1980 Brit. Med. Jrnl. 5 Apr. 1002 The normal infant will respond to sounds by stopping crying, opening his eyes widely or by a startle reflex, depending on the intensity of the sound. 2009 New Yorker 9 Feb. 45/1 This time the rat had a much smaller startle reflex, seen on the computer as a low peak. This is a new entry (OED Third Edition, September 2016; most recently modified version published online March 2022). < n.1917
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