Response selection on the Rorschach Test

After discussion of some theoretical speculations concerning the nature of the Rorschach process, two experimental manipulations of the Rorschach task are presented. Three groups of normal (n = 6) and schizophrenic subjects (7 paranoid and 7 nonparanoid) participated. Their mean age was 30.7 yr. In the first experimental version of the Rorschach, simplified inkblots (sections of the standard cards) were used to verify the influence of stimulus complexity on response for the three groups. In the second, an experimental version of the Rorschach task was created to highlight the influence of the selection process among different associations to blots. To this end, a list including responses both of positive and negative form quality to each card, was provided each subject. Data are discussed, highlighting the minimal differences obtained by the experimental manipulations and relating these to theoretical speculations.     

Monoidal categories with natural numbers object

The notion of a natural numbers object in a monoidal category is defined and it is shown that the theory of primitive recursive functions can be developed. This is done by considering the category of cocommutative comonoids which is cartesian, and where the theory of natural numbers objects is well developed. A number of examples illustrate the usefulness of the concept.This work was partially carried out while both authors were guests of McGill University and while the second author was a guest of Dalhousie University. Both authors acknowledge support from the Natural Sciences and Engineering Research Council of Canada and the Québec Department of Education.     

Phonological priming in spoken word recognition: Task effects

In two experiments, we examined the role of phonological relatedness between spoken items using both the lexical decision task and the shadowing task. In Experiment 1, words were used as primes and overlaps of zero (control), one, two, or all four or five (repetition) phonemes were compared. Except for the repetition conditions, in which facilitation was found, phonological overlap resulted in interference on word responses. These effects occurred in both tasks but were larger in lexical decision than in shadowing. The effects that were evident in shadowing can be attributed to an attentional mechanism linked to the subjects' expectancies of repetitions. The extra effects obtained in lexical decision can be interpreted by taking into account both activation of the response corresponding to the prime's lexical status and postlexical processes that check for phonological congruency between prime and target. In Experiment 2, some modifications were introduced to prevent the involvement of strategic factors, and pseudowords were used as primes. No effect at all was observed in shadowing, whereas in lexical decision interference effects occurred, which is consistent with the hypothesis that lexical decision may be negatively affected by finding a phonological discrepancy at the same time as the primed response is reactivated. Neither experiment provided evidence for the occurrence of phonological priming in the perceptual processing of words.     

Catecholamine excretion in pleasant and unpleasant situations

Catecholamine excretion was studied in 36 students under four different conditions, which involved either playing a game of chance, performing psychological tests, watching surgical films or spending the session in inactivity. Adrenaline excretion was shown to be highest during the game session, which was described by the subjects in the most positive terms. It was concluded that a rise in behavioural arousal level is accompanied by increased adrenaline secretion, also when the arousal increase is induced by a situation regarded as pleasant.     

Judgment of contingency: cognitive biases in depressed and nondepressed subjects

In this research I investigated whether the use of relevant affective outcomes influences depressed and nondepressed subjects' judgment of contingency. Similar to previous studies (Alloy & Abramson, 1979, Experiments 1 and 2), Experiments 1 and 2 confirmed that when the outcome is affectively neutral (i.e., the onset of a light) depressed subjects make accurate judgments of contingency, whereas nondepressed subjects show (in noncontingent situations) a significant illusion of control. In Experiments 3 and 4 (a contingency situation and a noncontingency situation, respectively) different types of sentences (negative self-referent, negative other-referent, positive self-referent, positive other-referent) were used as outcomes. Although depressed subjects were more reluctant to show biased judgments than were the nondepressed subjects, in noncontingency situations depressed subjects made overestimated judgments of contingency when the outcomes were negative self-referent sentences. Results are discussed with regard to current cognitive theories of depression, particularly the learned helplessness model.