Pupil size changes were monitored during the solution of various types of problems. A number of solution and response strategies were required of the subject. There was strong confirmation of the theory that this autonomic index can provide a sensitive measure of the fluctuating levels of attention and arousal, which are associated with the various aspects of information processing and response.
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References
1.
BradshawJ. (1967). Pupil size as a measure of arousal during information processing. Nature216, (5114)515–6.
2.
GlassA. (1966). Comparison of the effect of hard and easy mental arithmetic upon blocking of the occipital α rhythm. Quart. J. exp. Psychol.17, 142–51.
3.
HessE. (1964). Pupil size in relation to mental activity during simple problem solving. Science143, 1190–2.
4.
KahnemanD.BeattyJ. (1966). Pupil diameter and load on memory. Science154, 1583–5.
