Some aspects of negation in English

I introduce a formal language called the language of informational independence (IL-language, for short) that extends an ordinary first-order language in a natural way. This language is interpreted in terms of semantical games of imperfect information. In this language, one can define two negations: (i) strong or dual negation, and (ii) weak or contradictory negation. The latter negation, unlike the former, can occur only sentence-initially. Then I argue that, to a certain extent, the two negations match the distinction existing in natural languages between sentential and constituent negation. As a corollary, I derive the fact that there are no mechanical rules for forming the contradictory negation of an English sentence.     

L'avenir de l'approche par élaboration de règles

The goal of this study is the elaboration of a computerized diagnostic instrument based on Siegler's rule-assessment approach for assessing the acquisition of the probability quantification scheme in subjects aged 6–18 years. Three versions of the test were used. Version 1 was Siegler's original version (four types of problems and four rules). In version 2 five new rules were added; version 3 contained the five new rules plus eleven types of problems. Results show that version 1 allows the classification of only 50% of subjects; version 2, 60%; and version 3, 70%. Despite improved versions, some weaknesses remain, the most important one being that it is still impossible to evaluate intra-individual variability. Aware of these limits, Siegler has reassigned his model to a local model of problem solving, and suggests a developmental model of information processing inspired by a Darwinian model of variation and strategy selection. The authors hypothesize that computer engineering could not only reaffirm the general status of the rule-assessment approach, but could also allow consideration of intra-individual variability.     

Social Change and Marital Problems: Implications for Marriage Counselling

There are many reasons why people experience marital dissatisfaction. This paper is concerned with those who experience dissatisfaction not as a result of individual personality problems but as a result of the impact of social change on contemporary marriage. On the whole, these people are emotionally mature even if they present, initially, with 'clinical' symptoms. The paper identifies the effect of social change on such couples and suggests an approach to marriage counselling designed specifically to meet their needs. Background material is provided by a study of 40 couples seen for marriage counselling in a psychiatric clinic.     

Structural alterations of an ambiguous musical figure: The scale illusion revisited

The scale illusion (Deutsch, 1975) shows the importance of frequency range in the perceptual organization of a sequence of notes. This paper includes three experiments on the scale illusion. Experiments 1 and 2 demonstrated that if the structure of the pattern of notes used in the original scale illusion study is altered slightly, by adding or subtracting a pair of notes from the ends of the sequence, there is a significant decrease in the rate of frequency-based responses, suggesting a weaker illusion. Experiment 3 investigated two features of the note patterns that may have led to this change. Specifically, it asked whether the decrease in the strength of the illusion is due to (1) the nature of the notes at the extremes of the frequency range and/or (2) the nature of the notes at the crossing point of the two scales. While both sources were found to affect the strength of the scale illusion, the former had a greater influence.     

Scale properties of the Holtzman inkblots

Scaling techniques were presently applied to perceptions of inkblots, to empirically delineate the relationship between their stimulus properties and the nature of verbal associations elicited in projective testing. The Holtzman Inkblot Technique (HIT) was administered in group form to a relatively diverse group of college students. Subjects also individually rated the similarity of pairs of the HIT inkblots. Similarity judgments were analyzed via a multidimensional scaling (MDS) approach which recovered dimensions of variations among blots. The MDS procedures also captured variation across subjects in their utilization of blot stimulus properties. MDS solutions generally reflected differences among the blots along dimensions of physical characteristics of the blots. Differences in responsiveness of subjects to these characteristics appeared to reliably reflect meaningful substantive distinctions among subjects, many of which were not captured by traditional HIT variables. Implications were discussed in terms of further MDS applications and possible re-evaluation of HIT variables or procedures.     

Negotiations,image of the other and the process of minority influence

The new theoretical presuppositions used by Moscovici to explain social influence phenomena led him to show that the consistency of behavior can account for the influence of a minority. Experimental data confirm this idea. However, some counter-examples, showing that consistency sometimes induces subjects to refuse compromises, are problematical. To clear up this apparent contradiction, a distinction is made between behavioral style (in the face of the majority norm) and the style of negotiation (in the face of the population the minority wants to influence). A first experiment, then, shows that when two minorities are seen as equally consistent, the minority with a flexible style of negotiation has more influence than the more rigid minority. A second experiment deals with Ss' perception of the source of influence and clarifies the effects of minority negotiations; the links between opinions, opinion change and perception of others are also clarified.     

Paradoxical effects of categorization in minority influence: When being an outgroup is an advantage

In a 2 × 2 factorial design, 165 high school girls gave their opinions about abortion (direct influence) and about contraception (indirect ifluence) after reading a message advocating abortion said to have been written by either an ingroup (same sex) or an outgroup (opposite sex) minority and explicitly opposed by the majority opinion of either the ingroup or the outgroup. Results show that there is less direct influence when the ingroup majority is opposed to the minority, and more direct influence when the process of identification is less involved. Indirect influence appears in an intergroup context where categorization of majority and minority into different groups is superimposed on their ideological dissent, which has the effect of allowing recognition of the minority's distinctiveness and validity over and above the discrimination that appears at the direct influence level. In discussing the results, a theoretical integration of social comparison and validation processes is proposed as a step towards explaining the diversity of minority influence phenomena.     

Task interference from prospective memories covaries with contextual associations of fulfilling them

One of the current issues in the field of prospective memory concerns whether having an intention produces a cost to other ongoing activities (called task interference). The evidence to date suggests that certain intentions held over the shorter term do interfere with other tasks. Because the cumulative effect of such costs would be prohibitively expensive in everyday life, the present study examined one means by which that interference may be reduced. Participants who formed a specific association to fulfilling an intention in a future context did not exhibit task interference over the intervening period until that context was encountered. This outcome was observed with both an event-based and a time-based prospective memory task. The results suggest that associating intention fulfillment with a specific context can eliminate task interference, and they emphasize the importance of studying intentions that are linked to future contexts versus those that are not.