A television technique for quantifying conditioned and unconditioned responses of planarians

A technique tor quantifying responses of the planarian, using television recording, is described. The planarian swims in a watch crystal filled with spring water, with a TV camera directly under the crystal aimed upward. Shock is administered via four electrodes placed 90 deg apart around the perimeter of the crystal. Magnitude of response to shock is expressed in terms of percent reduction in body length. Latency of response onset is also available by counting synchronizing pulses equalling 1/60 sec. Data from two worms which received 20 shocks/day for 5 days indicated that the magnitude and latency measures were similar for the two animals and were reasonably reliable. The average latency of the UR to shock was about 100 msec, similar to that of the human eyeblink. Extension of the technique for studying CRs was also described, indicating that greater sophistication in quantifying URs and CRs in planarians is now available.     

Conditional fear,anxiety, and morphine-seeking behavior

TwoCebus albifrons monkeys were given discriminative operant conditioning with visual stimuli, with Sidman avoidance and punishment as the components. The instrumental response was an unelicited increase in skin conductance. Both animals had surgically implanted catheters for automatic injection of morphine into the heart. After autonomic conditioning, the animals were given the opportunity to self-administer the morphine by touching the primate press panel that displayed the visual stimuli. One contingency-free segment per session was used for morphine injection, while the contingencies remained in force during the other segments. One of the monkeys made significantly more skin conductance responses during avoidance than during punishment, and this monkey received ten times as many shocks in punishment. This monkey also made more responses overall and had a much higher heart rate than the other animal. The other monkey did not differentiate significantly autonomically and received equal numbers of shocks in avoidance and punishment. The monkey that showed autonomic differentiation made significantly (and increasingly) more panel-presses during punishment than during avoidance. The other animal showed hardly any tendency at all to panel-press.     

Dogmatism, Locus of Control of Reinforcement, Importance of Issues, and Relationships to Political Activity

This study examined the cumulative and interaction effects of dogmatism, I-E, and issue salience on political activity. Indexes of the variables were developed from factor-analytic results based on personal, group, and mail interviews with 212 adults in the Detroit area. The three psychological variables were then dichotomized at the median and related to political activity, utilizing multiple regression and a step-wise interaction procedure. The multiple r was .41 ( p <.01) with issue salience contributing the greatest amount of variance. Comparisons to multiple-regression predictions indicated interaction effects with low-issue importance reducing political activity and high-issue importance increasing political activity. Split-half analyses indicated substantial stability in the findings. A broader conceptualization for relating psychological variables to political activity was discussed.     

Reflex “habituability” as a basis for differentiating between classical and instrumental conditioning

Earlier bases for differentiating between classical and instrumental conditioning are considered. These include Konorski’s recent proposal that only those responses which are mediated by the “central behavioral system” may be instrumentalized, as well as Skinner’s notion of respondent versus operant behavior. A new proposal, based upon the suggestions of Kozak and Westerman and of Razran, is made; namely, if the reinforcement of one reflex with another results in classical or instrumental changes depends basically upon the ease with which the first reflex is habituated. The principal basis of differences in “habituability” between classical and instrumental conditioning procedures is suggested to be the variability of stimulation which elicits the first reflex.     

‘Clemency on the way to the gallows’: death,dreams and dissociation

The survivor of a decade of childhood sexual trauma and violence, perpetrated by a monstrous father, produced a series of dreams in the final year of a ten‐year analysis. They illuminated the ‘death drive’ beneath a lifelong preoccupation with dying and fantasies of submission to death, perpetuated by the promise of hoped‐for freedom from pain and release from a life of suffering. The initial dream involved the collapse of a team of white horses drawing him in a pillory cart to his own hanging for a crime he did not commit. It signified the collapse of a fragile psychological system based on his role as the ‘sacrificial lamb,’ protecting a (not so) innocent mother. The raw truth was now unconcealed: primal, violent, and terrifying dreams and affects emerged where he was now the murderous aggressor. His dreams would become primary agents for an instinctive, life‐giving authenticity to emerge, offering him clemency from the shattering repetitions of persecution and dissociation.     

Contingent restraint and positive procedures to eliminate life-threatening self-abuse and aggression: a 49 month evaluation

A 42-year-old woman with a dual diagnosis who presented with aggression and life-threatening self-abuse, in the form of swallowing non-edible objects, was successfully treated with behavior therapy over a 49 month period. The behavior therapy program consisted of contingent restraint and positive approaches including weekly contracts, and individual and group therapy which increased appropriate behaviors and the coping strategies for this individual while reducing the target behaviors. This reduction in target behaviors was maintained while the restraint procedures were faded from the program. The individual has not exhibited any target behaviors for 16 months and has transitioned to a state school. © 1997 John Wiley & Sons, Ltd.