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LIP-KEY [1 record]

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Record 1 2002-02-07

English

Subject field(s)
  • Psychology (General)
CONT

Three instruments were used to break the current controlling the chronoscope at the instant the observer made a motion. The other two instruments were devised to break the current when the organs of speech are moved. The first of these ... we can call a lip-key. The binding screws ... are connected respectively with the battery and the chronoscope. The platinum contact ... is closed when the observer holds the ivory tips ... between his lips; but as soon as the lips are moved the spring ... breaks the contact, and, consequently, the current which had been flowing through the chronoscope.

OBS

Used in reaction time experiments.

French

Domaine(s)
  • Psychologie (Généralités)
DEF

Appareil permettant comme la clef vocale de déterminer l'instant précis d'une réponse verbale.

Spanish

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