Articoli correlati a A Text-Book of Experimental Psychology with Laboratory...
Sinossi
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1911 edition. Excerpt: ...to red, and with the left hand to blue. In this case an assistant exhibits the stimuli, always taking care that they follow in quite irregular order, and recording the nature of the stimulus and the mode and details of the subject's response. The subject should introspectively determine his change in attitude with increasing practice. Exp. 91. The times of these reactions are so long that they may be roughly studied, in default of specially adapted experiments, by the assistant pressing down a Morse key at the moment when he exhibits or utters the stimulus word, while the subject lifts his own key and simultaneously responds with the associated word. Accurate results, however, require an apparatus, enabling a word to be exposed, and causing the chronoscope current to be made (or broken) at the moment of exposure, together with a voice key or lip key for the subject, whereby the current is broken (or re-made). A series of free, or partly or wholly constrained, association reactions may be taken in irregular order, and the average times of the three groups calculated. To study the difference in association reaction times, according as the subject endeavours to repress, or has never had, a certain experience, one of the two subjects investigated may be allowed to see some secret object, or to do some secret act, known only to the experimenter and himself. Stimulus words are prepared by the experimenter for both subjects, of which some (' critical' stimuli) have reference, more or less direct, to the particular object or act, which one of the two subjects has experienced, while others may be called 'indifferent.' The associations of the two subjects to the same words are investigated separately. Their association...
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