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单词 unconditioned stimulus
释义

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unconditioned stimulus
b. unconditioned reflex, an inborn, instinctual reflex or reflex action (cf. conditioned adj. 7b). So unconditioned stimulus.
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the mind > mental capacity > psychology > experimental psychology > study of reflex actions > [noun] > type of reflex
conditioned reflex1906
unconditioned reflex1906
the mind > mental capacity > psychology > experimental psychology > conditioning > [adjective] > not conditioned
naive1906
unconditioned reflex1906
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
1906 Nature 11 Oct. 592/1 The latter actions..are termed by Prof. Pawlow ‘conditioned reflexes’, to distinguish them from the ordinary or unconditioned reflexes.
1927 G. V. Anrep tr. I. P. Pavlov Conditioned Reflexes ii. 25 I have termed this new group of reflexes conditioned reflexes to distinguish them from the inborn or unconditioned reflexes.
1937 Discovery Jan. 17/2 Its instincts, or, to use Pavlov's expression, its unconditioned reflexes.
1972 New Yorker 26 Aug. 32/3 In the vocabulary that Pavlov adopted to describe his findings, the meat powder was labelled an ‘unconditioned stimulus’.
extracted from unconditionedadj.
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