Variables affecting preference for signaled shock in a symmetrical changeover design

In a signaled-shock situation, the signal's presence serves a warning function (prediction of shock) whereas the signal's absence serves a safety function (prediction of nonshock periods). The relative contribution to preference for signaled shock made by these two potential sources of reinforcement was assessed using a symmetrical changeover procedure in which rats were permitted to control the amount of time spent in one of two mutually exclusive conditions, the signaled and unsignaled states. The stimulus conditions that prevailed in the signaled state differed for several groups of animals. For some groups, the safety function of signals was degraded while the warning function was left intact. For other groups, the warning function was degraded and the safety function was not. The availability of the unaltered feature was then manipulated in both sets of groups to determine its effect on preference for the signaled state. Changeover behavior was strongly related to the availability of the signal's safety function and weakly related to its warning function, indicating that the two variables contribute differentially to preference for signaled shock. Other sources of behavioral control, having little to do with the safety or the warning function of signals, were also demonstrated, suggesting the need for careful control procedures when using changeover behavior as a measure of preference.     

The effect of deprivation level during noncontingent pairings and instrumental learning on subsequent instrumental performance

In Experiment 1, rats received either response-noncontingent pairings of a tone stimulus with food or response-contingent instrumental training during which only responses in the presence of the tone were reinforced. During this training rats were maintained at either 70 or 90% of their growth-adjusted predeprivation body weights. In a subsequent test phase, one-half of the subjects in each training condition were tested under either 70 or 90% body weight. Subjects which had received response-contingent instrumental training under 70% body weight responded significantly faster to presentations of the tone than did 90% body weight-trained subjects, regardless of test deprivation condition. There was no effect of the deprivation level in effect during response-noncontingent pairings. In Experiment 2, rats received noncontingent tone-reward pairings or nonpairings under either 70 or 90% body weight. In a later test phase under 90% body weight, instrumental responding to the tone was significantly faster for subjects which had received the tone-reward pairings. Deprivation level during the pairings again produced no effect. These results support two conclusions. First, the expectancy learning process appears to be relatively independent of deprivation conditions in effect when such learning takes place; and secondly, deprivation conditions in effect during instrumental learning affect the strength of S-R associative bonds formed.     

Preference for information about intensity of signaled tailshock

Three experiments are reported which were designed to demonstrate preference for signaled shock and to delineate the roles of the preparatory-response, information-seeking, and signaled-safety hypotheses of this phenomenon. Experiment 1 demonstrated a preference for a signal-tailshock condition over a tailshock-signal condition in a shuttlebox. In Experiment 3, rats were exposed to signaled tailshock of two intensities in both compartments of the shuttlebox, but in one compartment the signals provided information about the intensity of the impending tailshock, whereas in the other compartment the signals did not. The tailshock intensities were .6 and 1.3 mA for one group and .6 and 1.8 mA for a second group. Experiment 2 assured that even the smaller intensity difference was readily discriminable. For Group .6-1.8 a significant preference for the condition in which the signals predicted the intensity of the impending tailshocks was obtained, but no preference for either condition was found for Group .6-1.3. As signaled safety was equated in the two compartments of Experiment 3, the observed preference cannot be accounted for by the signaled-safety hypothesis. Information seeking cannot explain the lack of preference in Group .6-1.3 as the difference between those two intensities was proven discriminable in Experiment 2. Assuming that sufficient differences in shock intensity yield different preparatory responses, the present results are compatible with the preparatory-response hypothesis and suggest that preparatory responding plays a role in producing the preference for signaled shock.     

Bidirectional operant conditioning of heart rate in rats with sucrose reward

Sucrose was used to reinforce heart rate (HR) increases in one group of unrestrained rats and to reinforce decreases in another. A third group received noncontingent sucrose presentations, and a fourth was presented with an empty dipper. After 10 conditioning sessions HR, as measured by changes in tonic levels, was significantly greater in the Fast group than in the Noncontingent group, which in turn maintained significantly higher levels than the Slow group. There was no difference between the Noncontingent and No-sucrose groups. Behavioral observations indicated that the Fast animals increased the percentage of time spent in such high-HR categories as rearing and walking; however, there were no corresponding systematic decreases in the Slow animals. Moreover, the Fast and Slow groups differed significantly with regard to the HRs associated with five behavioral categories. The overall pattern of results suggests that some degree of cardiospecific effect may have been exerted by the operant contingencies.     

Word-by-word analysis of observer agreement utilizing audio and audiovisual techniques

The purpose of this study was to compare audio and audiovisual techniques of analyzing stuttering behavior using a recently developed index of agreement (Young, 1975). Twenty speech pathologists identified moments of stuttering for ten adult stutterers using both audio and audiovisual methods. Although no statistically significant differences existed between the two conditions, the listeners had more difficulty identifying moments of stuttering during the audio condition when mild stutterers were used.     

The Idea of Creation and the Theory of Autopoietic Processes

Systems theory is proposed as a major resource for reconceptualizing a Christian theology of creation. Section I outlines the principles of the theory of autopoietic systems and discusses in particular Manfred Eigen's and Stuart Kauffman's differing views of the emergence of life. Section II shows how biblical texts conceive of God's "blessing" as a divine installment and reshaping of spatio-temporal fields for creaturely self-productivity. On this double basis, Section III undertakes a constructive attempt to formulate a theology of self-productivity within a Trinitarian framework. The unity of divine self-consistency and capacity for self-relativization is seen as the clue for understanding how God not only sustains the world in general but also influences particular processes by changing the overall probability pattern of evolving systems.     

Clinical experiences during the COVID-19 pandemic

Most of the clinical experiences discussed in this article arose from monthly Zoom meetings at Rome’s Italian Centre of Analytical Psychology (CIPA). We set up a discussion group in April 2020, one month after lockdown began in Italy, and these monthly online meetings continue to this day. All senior analysts and analysts-in-training at Rome’s CIPA, whose backgrounds range from child and adolescent psychotherapy to adult psychotherapy and analysis, to sandplay therapy and medicine and psychiatry, have been participating in these meetings. The group discussions focus on the present time and its impact on us, as well as on our relationships with patients. By further developing these reflections during the lockdown in Italy (9 March - 3 May 2020), it is fair to ask whether a sense of unreality, depersonalization, or derealization has occurred, either in the therapist or patient, and if so, whether it is possible that therapists miss the human contact more than clients. We will mainly refer to clinical and personal experiences as our most precious guidelines.