Russian nationalism and the “Yanov thesis”

The Russian New Right: Right‐Wing Ideologies in the Contemporary USSR by Alexander Yanov, Berkeley, California, Institute of International Studies of the University of California, 1978, 188 pp., $4.50.     

Backward inhibitory learning in honeybees: a behavioral analysis of reinforcement processing

One class of theoretical accounts of associative learning suggests that reinforcers are processed according to learning rules that minimize the predictive error between the expected strength of future reinforcement and its actual strength. The omission of reinforcement in a situation where it is expected leads to inhibitory learning of stimuli indicative for such a violation of the prediction. There are, however, results indicating that inhibitory learning can also be induced by other mechanisms. Here, we present data from olfactory reward conditioning in honeybees that show that (1) one- and multiple-trial backward conditioning results in conditioned inhibition (CI); (2) the inhibition is maximal for a 15-sec interval between US and CS; (3) there is a nonmonotonic dependency on the degree of CI from the US-CS interval during backward pairing; and (4) the prior association of context stimuli with reinforcement is not necessary for the development of CI. These results cannot be explained by models that only minimize a prediction error. Rather, they are consistent with models of associative learning that, in addition, assume that learning depends on the temporal overlap of a CS with two processes, a fast excitatory and a slow inhibitory one, both evoked by a reinforcer. The fmdings from this behavioral analysis of reinforcement processing are compared with the known properties of an individual, identified neuron involved in reinforcement processing in the bee brain, to further understand the mechanisms underlying predictive reward learning.     

INCREASING RURAL HEAD START CHILDREN'S CONSUMPTION OF MIDDLE-CLASS MEALS1

Rural black, economically impoverished Head Start children, whose normal diets were deficient in nutritional requirements, were not consuming the nutritional breakfasts of, to them, unfamiliar foods provided by the county school system. This study investigated a positive simple method to increase the amount of food consumed and thereby ensure proper nutrition. Teachers dispensed sugar-coated cereal and small candies paired with praise contingent on eating behaviors and rewarded children who finished the entire meal with additional treats and praise. Substantial increases were produced in the proportion of meals consumed and in the number of children observed engaged in eating behaviors. These simple traditional behavioral procedures are readily available for any staff working with economically impoverished children as one method of increasing their sampling and consumption of unfamiliar nutritious foods.     

Factor structure of the Vocational interest models of Roe and Holland

Analyses of interscale relations in 235 college students for the Vocational Preference Inventory and Vocational Interest Inventory, based on interest models of Holland and Roe, respectively, suggest that the twodimensional, circular configuration of occupational or personality types may be an oversimplification which impedes the understanding of the structure of vocational interests. For both interest models four orthogonal dimensions seem necessary to capture interindividual variability: Social vs. Technical, Organizational vs. Outdoor, Science vs. Business, and Artistic.     

The consultation clinic

Pastoral Psychology -