Psychological Review

Starch, Daniel

doi: 10.1037/h0072846pmid: N/A

Determines changes in the resistance of the body to a weak electric current during different mental states and processes. Eight male and two female Ss were observed for deflections on the Leed's and Northrop's mirror galvanometer with the palms of their hands on electrodes. Results indicated: (a) no galvanometric changes occurred during undisturbed passivity (b) all different types of mental processes were accompanied by galvanometric changes (c) emotional processes and muscular activity produced the widest deflections; while habitual, quiet, mental activity and process of visual attention produced the least deflections, and (d) the degree of intensity of emotional experiences corresponded closely with the amount of deflection.

Carr, Harvey A.

doi: 10.1037/h0070650pmid: N/A

Reports a series of investigations on the autokinetic illusion that usually involved four Ss. Greater extent and velocity of movement and individual variations were observed. Three typical conditions were found, with no appropriate eye movements occurring in the first type. The position of the eye prior to and during the illusion were determining factors. Discusses the factors producing variability of direction and provides a theoretical summary.

Bergstrom, John A.

doi: 10.1037/h0070080pmid: N/A

Describes two chronometric apparatus and accessories devised for research and for the student practice course. To remedy the defects of a model described in "A type of pendulum chronoscope and attention apparatus' in Psychological Review [Vol 7(5), 1900], a model was devised, differing in mode of carrying and clamping the index. Another model developed thereafter was smaller, simplified, and without expensive features, thereby facilitating duplication for student practice. New accessories, such as, the mirror key, exposure apparatus, face key, touch key, and sounder have been described.