Acquisition, extinction and reacquisition of a conditioned response in the cockroach: The effects of orotic acid

Cockroaches can be trained to keep their metathoracic leg out of a saline solution. Isolated metathoracic ganglia learnt faster than headless animals, which in turn learnt faster than intact animals. Extinction took longer in the isolated ganglion than in the other two preparations. Extinction times increased with increasing dose of orotic acid, a precursor of RNA. Orotic acid did not systematically affect the times for acquisition and reacquisition of the learnt response.     

Fusion frequency as a function of number and phase of binocular stimuli

The relation of fusion hertz to the number of pulses in a train was explored under three conditions: monoptically, dichoptically inphase, and dichoptically antiphase. All three conditions show an increase in fusion hertz as the number of pulses in the stimulating train increases. Over the range of pulse numbers investigated, fusion hertz varies principally with the number of pulses delivered to one eye regardless of the stimulating condition of the other eye.     

Some puzzling results on the Poggendorff illusion

Results obtained by Weintraub and Krantz on the Poggendorff illusion were critically evaluated. It was also shown that the assimilation theory of the Poggendorff illusion adequately predicted the form of the function that results from rotating one of the oblique arms.     

Seeing and hearing and space and space and time

A previous experiment had shown spatial location to be judged in terms of the framework provided by the modality in which stimuli were presented. In the present study, digits were either auditorally or visually presented, and in either form the three digits appeared successivly to the left, in the center, and to the right of the S. The digit which occurred temporally in the middle of the sequence was never central from the spatial viewpoint. The S was asked to indicate which digit was the middle one. Ss were blind, deaf, or normal. The deaf and two control groups saw visual displays, and the blind and their controls heard auditory displays. The former groups predominantly chose the spatially middle digit and the latter groups the temporally middle. It was concluded that modality of presentation was the trigger which switched in the coding dimension of time or space.     

Matching behavior: Some methodological problems

Two classes of problems associated with specifying the controlling stimuli in matching experiments were discussed. The first class-control of matching behavior by cues other than the standard stimuli-was demonstrated by the results of a pseudomatching experiment. The second class related to the “effective” sample or standard stimulus set and to changes in the S’s matching strategy that may occur in a matching experiment.     

Reflections on thomism and client-centered psychotherapy

Conclusion To summarize, Rogers and Aquinas both stress the importance of existential experience and sense data. Although Rogers is more concerned with human freedom and being than are many modern adjustment psychotherapists, he is still circumscribed by his initial positivistic assumptions about the nature of man in his therapy. but these assumptions may be in the process of change.But like Aquinas, Rogers has a deep respect for the person, a respect for his emotions, a respect for his whole existential being.³⁸ Rogers once stated that the client-centered point of view is devoid of thequid pro quo aspect of most experiences we call love. It is the simple outgoing human feeling of one individual for another, a feeling it seems ... which is even more basic than sexual or parental feelings. It is a caring enough about the person that you do not wish to interfere with his development, nor to use him for any self-aggrandizing goals of your own. Your satisfaction comes in having set him free to grow in his own fashion.³⁹ Isn't this the spiritual detachment of real Christian love?He has taught at the University of California at Los Angeles and at Loyola University (Los Angeles), and has been a staff psychologist at the Metropolitan State Hospital, Los Angeles. He is a member of the American Psychological Association and the American Academy of Psychotherapists.Portions of this paper were presented at the 16th Annual Scientific Session, Guild of Catholic Psychiatrists, Los Angeles, 1964.     

The effects of stimuli followed by response-independent shock on shock-avoidance behavior

Four rhesus monkeys were trained on a non-discriminated shock-avoidance schedule (baseline). Stimuli followed by response-independent shock were then presented with the avoidance baseline no longer in effect. The main portion of the experiment consisted of superimposing (independently of responding) the stimuli followed by response-independent shock on the avoidance baseline. Different temporal values of stimulus duration and delay of shock (produced by an avoidance response) were presented successively, using each subject as his own control. When the stimulus duration was short or the delay of shock was long, so that avoidance rate during the stimulus could assume any value without resulting in baseline (avoidable) shocks during the stimulus, a lowered or "suppressed" rate of responding developed during the stimulus. When the stimulus duration was long or the delay of shock was brief, so that avoidable shocks resulted from a response decrement during the stimulus, high or "facilitated" rates of responding developed for a large proportion of the time that the stimulus was present.     

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Pastoral Psychology -