%0 Journal Article %1 KahnemanEtAl1968 %A Kahneman, Daniel %A Peavler, Scott W. %A Onuska, Linda %D 1968 %J Revue canadienne de psychologie %K pupilometry %N 3 %P 186--196 %T Effects of verbalization and incentive on the pupil response to mental activity %V 22 %X STUDIED MEASUREMENTS OF PUPIL SIZE DURING PERFORMANCE OF A SHORT-TERM MEMORY TASK (ADD 0) AND A DIGIT TRANSFORMATION TASK (ADD 1). IN EXP. I, SS EITHER REPEATED THEIR ANSWER TWICE (SPEAKING) OR THOUGHT THE ANSWER 1ST THEN SAID IT ALOUD ONCE (THINKING). SMALL DILATATIONS OCCURRED ON THE 1ST UTTERANCE OF A DIGIT STRING. IN EXP. II, THE RISK ASSOCIATED WITH THE TASK WAS VARIED BY MONETARY INCENTIVE AND PENALTY. HIGH INCENTIVE ONLY INCREASED THE PUPIL RESPONSE TO THE EASIER TASK. IN BOTH EXPERIMENTS, THE LARGEST EFFECTS WERE ASSOCIATED WITH TASK DIFFICULTY. RESULTS CONFIRMED THE VALIDITY OF PUPIL MEASURES AS INDICATORS OF THE LOAD IMPOSED BY MENTAL ACTIVITY.

@article{KahnemanEtAl1968, abstract = {STUDIED MEASUREMENTS OF PUPIL SIZE DURING PERFORMANCE OF A SHORT-TERM MEMORY TASK (ADD 0) AND A DIGIT TRANSFORMATION TASK (ADD 1). IN EXP. I, SS EITHER REPEATED THEIR ANSWER TWICE (SPEAKING) OR THOUGHT THE ANSWER 1ST THEN SAID IT ALOUD ONCE (THINKING). SMALL DILATATIONS OCCURRED ON THE 1ST UTTERANCE OF A DIGIT STRING. IN EXP. II, THE RISK ASSOCIATED WITH THE TASK WAS VARIED BY MONETARY INCENTIVE AND PENALTY. HIGH INCENTIVE ONLY INCREASED THE PUPIL RESPONSE TO THE EASIER TASK. IN BOTH EXPERIMENTS, THE LARGEST EFFECTS WERE ASSOCIATED WITH TASK DIFFICULTY. RESULTS CONFIRMED THE VALIDITY OF PUPIL MEASURES AS INDICATORS OF THE LOAD IMPOSED BY MENTAL ACTIVITY. }, added-at = {2010-03-11T12:13:08.000+0100}, author = {Kahneman, Daniel and Peavler, Scott W. and Onuska, Linda}, biburl = {https://www.bibsonomy.org/bibtex/2c62470f42ffed87337df54f3b7c1d663/tmalsburg}, interhash = {387be7d5d6db66b4b37c2810c2155555}, intrahash = {c62470f42ffed87337df54f3b7c1d663}, journal = {Revue canadienne de psychologie}, keywords = {pupilometry}, number = 3, pages = {186--196}, timestamp = {2010-03-11T12:13:09.000+0100}, title = {Effects of verbalization and incentive on the pupil response to mental activity}, volume = 22, year = 1968 }