A form of behaviour therapy for some states diagnosed as “affective disorder”

Certain of the states commonly diagnosed by psychiatrists as “affective disorder” do not respond favourably to the usual treatments prescribed, and it is argued by Lum (1976) that such states are not appropriately labelled, as they are primarily due to the somatic condition of hypocapnoea—an abnormally low level of arterial carbon dioxide. This condition is well-recognized and can be diagnosed by appropriate physiological investigation. Hypocapnoea seriously affects various somatic systems, and if the patient later experiences affective distress it is a secondary symptom due to a vicious circle mediated by autonomic responses. The treatment of choice is a form of behaviour therapy aimed at altering the breathing response in the direction of building up toleration of a higher habitual level of arterial carbon dioxide. Existing work by behaviour therapists and others on the physiological and behavioural responses to varying levels of arterial carbon dioxide is cited, and the rationale of symptomatic treatment is discussed. Current treatment methods for hypocapnoea, although behaviourally oriented, are not closely in accord with the principles of modern behaviour therapy, and this paper suggests some directions of improvement.     

Increasing senior citizen participation in a community-based nutritious meal program

Two experiments were conducted to compare the effects of several prompting and reinforcement procedures on the participation of elderly citizens in a nutritious meal program. Experiment I employed a variation of the multiple-baseline design across three groups of approximately 60 households each. Elderly persons not previously participating in the program were introduced to the following conditions: (1) public service radio announcements for four weeks to advertise the meal program and the availability of free transportation, (2) a home visit that served as a personal invitation and a second prompt for participation, (3) a followup telephone call, and (4) an incentive menu for participation, which was sent through the mail. Results indicated that the home visits and incentives were both effective as recruitment procedures and superior to other conditions; however, incentives proved to be the most cost-effective intervention. Experiment II used a variation of the multi-element design to compare the effects of scheduled activities and incentives in maintaining higher levels of participation by those persons who had attended the meal program at least once in the past, but whose current rate of participation was low. Results showed that activities improved attendance levels somewhat and that incentives substantially increased the number of meal program participants. Data from these experiments thus indicate that relatively inexpensive procedures may be used effectively to increase the extent to which elderly persons make use of potentially beneficial community-based services.     

Aspects of Consumer Satisfaction With Brief Family Therapy

In an evaluative study of brief family therapy, 279 families were administered a Family Satisfaction Questionnaire in their own homes, six months after treatment terminated. This questionnaire was designed to assess several aspects of the families' satisfaction with services received. The identified patient in all families was a child with academic and/or behavioral problems at school. A variety of outcome measures were also obtained both at treatment termination and at the six-month follow-up. Families were generally satisfied with the overall services received but expressed widely varying degrees of satisfaction with various aspects of treatment. Very little dissatisfaction was expressed regarding the availability of services (less than 7 per cent), but a sizeable proportion of families (45 per cent) did not feel that the services provided were comprehensive and adequate. Despite concerns regarding comprehensiveness and adequacy of the service, the majority of families were functioning well at the time of follow-up as assessed by a number of independent measures. Global satisfaction should not be regarded as the only index of treatment effectiveness, as many families who were dissatisfied experienced successful treatment outcomes.     

Behavior of the rat after removal of the neocortex and hippocampal formation

After surgical removal of the neocortex and hippocampal formation, rats retained most of the movement patterns of locomotion, climbing, grooming, feeding, and fighting. However, forepaw immobility during swimming was abolished. Feeding behavior was suppressed temporarily but recovered partially. The distinctive postures of sleep and walking and a circadian rhythm of motor activity were retained. However, behaviors were often not performed at the appropriate time and place. The normal sequence of grooming behavior was disrupted; food hoarding and social behavior were essentially abolished. Removal of the neocortex alone had much the same effect as removal of neocortex and hippocampus together. Removal of hippocampus alone produced only a mild disruption of behavior. It is suggested that ascending nonspecific projections to the cerebral cortex play an important role in the moment-to-moment control of behavior but are not essential for the sleep-waking cycle.     

Delayed reinforcement of fixed-ratio performance without mediating exteroceptive conditioned reinforcement

The performance of pigeons was studied under conditions in which the completion of a fixed-ratio requirement was not contiguous with the presentation of a reinforcer. Timein and timeout periods alternated throughout the experimental sessions. Responses made by an experimental bird during the timein period were accumulated, and when a fixed-ratio requirement had been met, grain was presented to the experimental bird and a yoked control following their first response in the next timein period. Across most manipulations of the fixed-ratio requirement and of the duration of the timeout period, the response rates of the experimental birds were considerably higher than those of their controls, suggesting that the response-reinforcer dependency controlled the behavior of the experimental bird in the absence of a close temporal association between responding on the ratio schedule and reinforcer presentations.     

Reinforcement and punishment in a closed system

Children chose between toys freely and with various restrictive contingencies. Sometimes play with a preferred toy was contingent on play with a nonpreferred toy. Sometimes play with a nonpreferred toy was contingent on play with a preferred toy. Another toy (free toy) was always available during contingency sessions. Because toy playing occupied the entire session the response system was closed. When one response increased in duration others had to decrease. An analysis of closed-system responding revealed that the restrictions of the closed system together with the restrictions imposed by the contingencies forced subjects to alter the proportion of time devoted to the three responses. A geometrical model representing the closed system and an analytical method based on distance are presented to describe the data.