Describes a holographic method of producing a picture of a real lens, objects, and the virtual image of the objects. (SL)

Reports on the Harewood Centre which has its origins in the West Riding experiment of seconding teachers to become educational social workers. (Editor/RK)

Describes a magnetic resonance laboratory experiment for a biochemistry course. (SL)

Describes several plasma physics experiments suitable for undergraduate physics laboratories. (SL)

Describes experiments for preparing compounds containing cooper and nickel in the +3 oxidation state. (SL)

Describes experiments with and preparation of Manganese (III) for demonstrating the reactions of ions from the first transition metal series. (SL)

The hypothesis that the "self" concept is active in memory was tested in a series of recognition experiments involving first- and third-person sentences under several instructional conditions. Results were interpreted as congruent with the notion that the "self" can be seen as a cognitive structure with both a memory component…

Examines a Swiss experiment in second language learning before the age of ten, which indicates that pre-puberty second language learning can be successful and can improve first language skills, and that the method used is less important than the training of the teacher. (Text is in French.) (AM)

Two studies investigated recognition of pictures of faces, focusing on the effects of changes in appearance of the face from presentation to test and type of processing or encoding. (Editor)

Together, these studies replicate and extend Gordon and Spear's (1973a) findings that proactive interference decreases as the interval between prior and subsequent learning increases and that reactivation of a prior memory just before subsequent learning significantly increases the proactive interference due to the prior learning. (Author/RK)

The learning of backward associations by pigeons during training of forward associations was studied in three experiments using a symbolic matching task. The data are contrasted with the strong evidence of learning of backward associations by humans. (Editor/RK)

To test the tendency of subjects to perceptually organize discrete temporal patterns with regard to runs of identical stimulus events, spatiotemporal patterns of white noise were presented for reproduction. It is suggested that changes in runs of auditory patterns are perceptually analogous to changes in contours of visual patterns. (Editor/RK)

Experimenters in the past have reported that when insulin is used as the unconditioned stimulus (US), rats will learn an aversion to a sodium chloride but not a sucrose solution, whereas with formalin as the US, they will learn an aversion to a sucrose but not a saline solution. The present experiments failed to confirm these findings. (Editor)

These experiments investigate the degree to which neophobia, the reluctance to consume novel food, can be modified by toxicosis, the conditions under which the contingency between ingestion and illness enhances neophobia, and the manner in which previously learned aversions mediate subsequent enhanced neophobia. (Author/RK)

These experiments investigate situations in which a negative correlation involves a 24 hour delay between the occurrence of a conditioned stimulus and an unconditioned stimulus; they also investigate the mechanism by which any inhibition so produced might occur. (Author/RK)