An apparatus for recording figural after-effects

A simple apparatus is described by which Figural After-effects may be recorded directly from the subject's adjustments of a test figure. Curves which have been recorded confirm the results of other workers obtained by more laborious methods.     

An apparatus for apparent conditioning ofOctopus cyaneus Gray

An ann-out-of-water response was conditioned as an operant inOctopus cyaneus Gray. The response was limited to a vertical tube, 2.54 em i.d, Photoresistive sensors, illuminated with modulated light arranged around the tube above the waterline, detect the presence of an opaque object in the tube. The signal from this response detector is amplified and used to initiate a commercial motor-driven universal feeder according to the reinforcement schedule maintained by the logic control circuit. A sample cumulative record for perfonnance on a CRF schedule is given.     

An extended apparatus for measuring aggression in humans

An extension of Buss’s device for measuring human aggression is described, and the status of aggressive response latency as an indicator of aggressive motivation is discussed. An experiment is described in which measures of latency correlated negatively with those of shock intensity, and both discriminated between Ss who were motivated to aggress and those who were not.     

An examiner-induced visual vigilance apparatus

A film/record instrument is described that could measure attending behavior, distractibility, hyperkinetic movement, and selected aspects of visual perception by recording the subject's response to significant visual stimuli.