No abstract

No abstract

The direction of lateral eye-movements upon inward direction of attention or reflection is related to hypnotic susceptibility. A predominance of left eye-movements is associated with greater hypnotizability and also with humanistic interests, relatively poorer mathematical performance on the Scholastic Aptitude Test, and clearer imagery. Results are discussed in terms of functional asymmetry of the brain.

The study deals with the effect of a secondary signal-detection task on performance in a primary signal-detection task in an auditory vigilance situation. Forty subjects were tegted under two conditions. In one condition they listened to an 80-min. recording of a sequence of digits in order to detect the occurrence of primary signals defined aa three szlcceaaive odd digits which are all different. In another condition they listened for primary signals aa described above, but in addition they ale0 had to detect secondary Bignals defined aa the occurrence of the digit 8. The primary signals occurred ten times every 16 min.; there were about ten times aa many secondary signals (digit 6 ) as there were primary signals (odddd-odd).The over-all detection of primary signals waa better when subjects were listening for both primary and secondary signals than when they listened for primary signals alone. l$xtraverts benefited more by the secondary task than introverts. No significant relationship waa found between either neuroticism or intelligence and vigilance performance. A theoretical account of the events in a vigil is proposed and the Merence between introverts and extraverts is considered in terms of this account.