Extending Free Pregroups with Lower Bounds

In this paper, we propose an extension of free pregroups with lower bounds on sets of pregroup elements. Pregroup grammars based on such pregroups provide a kind of an algebraic counterpart to universal quantification over type-variables. In particular, we show how our pregroup extensions can be used for pregroup grammars expressing natural-language coordination and extraction.     

The Lambek Calculus Extended with Intuitionistic Propositional Logic

We present sound and complete semantics and a sequent calculus for the Lambek calculus extended with intuitionistic propositional logic.     

A Lambek Automaton

We define an automata-theoretic counterpart of (type-logical)grammars based on the (associative) Lambek-calculus L, a prominentformalism in computational linguistics. While the usual push-downautomaton (PDA) has the same weak generative power as the L-basedgrammars (Pentus, 1995), there is no direct relationship betweenthe computations of a PDA for some language L and the derivationsof an L-based grammar for L. In the Lambek-automaton, on theother hand, there is a tight relation (1-1) between automatoncomputations and grammar derivations. The automaton exhibitsa novel mode of operation, using hypothetical steps, directlyinspired by the hypothetical reasoning embodied by L.     

A case study approach to delivering and evaluating services by a school psychologist

Two interrelated problems in delivering school psychological services by one school psychologist acted as a motivating force behind this study: the problem of how to plan and render services to a school system where the ratio of students to school psychologists is high, and the problem of how to determine the degree of effectiveness of these services. This study describes an approach which consisted of three distinct services rendered by a school psychologist. Evaluative measurements of the services were made in two areas: the effect of the services on the ongoing operations of the system, and the evaluation of the services by school personnel exposed to the services directly or indirectly. The relative merits and the limitations of such an approach are discussed.     

Systemic blockade of D2-like dopamine receptors facilitates extinction of conditioned fear in mice

Extinction of conditioned fear in animals is the explicit model of behavior therapy for human anxiety disorders, including panic disorder, obsessive-compulsive disorder, and post-traumatic stress disorder. Based on previous data indicating that fear extinction in rats is blocked by quinpirole, an agonist of dopamine D2 receptors, we hypothesized that blockade of D2 receptors might facilitate extinction in mice, while agonists should block extinction, as they do in rats. One day after fear conditioning mice with three pairings of a white noise conditional stimulus (CS) with moderate footshock, we injected the D2 antagonist, sulpiride, the D2 agonist, quinpirole, or vehicle, just before repeated CS presentations to generate extinction. We assayed fear by measuring behavioral freezing during extinction presentations and then drug-free during CS presentations 1 d later. We found that sulpiride injections before extinction training facilitated extinction memory 24 h later, while quinpirole partially blocked extinction memory compared with vehicle-injected controls. Notably, sulpiride treatment yielded significant extinction after spaced CS presentations, which yield no extinction at all in vehicle-treated mice. These findings suggest that dopamine D2-mediated signaling contributes physiological inhibition of extinction, and that D2 antagonists may be useful adjuncts to behavior therapy of human anxiety disorders.     

Proof-Theoretic Semantics for Subsentential Phrases

The paper briefly surveys the sentential proof-theoretic semantics for fragment of English. Then, appealing to a version of Frege’s context-principle (specified to fit type-logical grammar), a method is presented for deriving proof-theoretic meanings for sub-sentential phrases, down to lexical units (words). The sentential meaning is decomposed according to the function-argument structure as determined by the type-logical grammar. In doing so, the paper presents a novel proof-theoretic interpretation of simple type, replacing Montague’s model-theoretic type interpretation (in arbitrary Henkin models). The domains of derivations are collections of derivations in the associated “dedicated” natural-deduction proof-system, and functions therein (with no appeal to models, truth-values and elements of a domain). The compositionality of the semantics is analyzed.     

A comparison of the work needs,attitudes, and preferences of professional accountants at different career stages

Although the concept of career stages has played an increasingly important role in vocational psychology, little research exists on career stage differences among professionals. In the present study, a sample of male professional accountants (N = 764) at different career stages were compared with respect to their work needs, work attitudes (intrinsic and extrinsic satisfaction, organizational and professional commitment), and vocational preferences. Accountants at different stages were found to differ significantly in their needs, work attitudes, and the extent to which they fit the Conventional type in Holland's model. In particular, accountants over the age of 60, in the preretirement stage of their career, when compared to their younger counterparts, reported significantly lower levels of job satisfaction but higher levels of organizational and professional commitment, and they demonstrate weaker higher-order needs but stronger security needs.     

Israeli Psychotherapy,Politics and Activism: Is There a Way Out of the Trap?

This article examines psychotherapy in context—political, social, cultural and historical. It does so by taking a close look at the Israeli psychotherapeutic community and how it changed over the years. Through this narrative and analysis the author wishes to illustrate how social-political context and professional practices plug into each other. It will be demonstrated how at difficult times when their country faces internal and external hardship and threats, Israeli psychologists have tended to withdraw and, whether unwittingly or not, affirm and support the status quo. This is paradoxical: when mostly needed psychotherapists may become silent and socially or politically passive. A possible way out of this trap, through a change in psychotherapists’ professional position and views, will be discussed. In addition, a politically sensitive alternative will be presented, one that may enable psychotherapists to maintain an independent praxis, which models a proactive and optimistic stance while serving society as agents of personal, social and political change.     

Helping behaviour and moral judgement among adolescents

This study examined the development of helping behaviour and moral judgement during adolescence. Adolescents of three age groups, 12–13, 14–15 and 16–17 years, were asked to fill out a moral judgement questionnaire and were later asked to volunteer to help old people under three helping conditions: when tangible reward was promised in return for their help; when social reward was promised; and when no reward was promised. The volunteers who arrived at the appointed hour on the set date were asked by the experimenter to explain in writing why they had decided to help. The results showed that the older the adolescents, the less they expressed their willingness to help. Helping conditions had a differential effect on behaviour and influenced the three age groups differently. Finally, the results showed that the older the adolescents, the more altruistic the motives expressed and the more relativistically oriented they were. These results are explained within the framework of adolescents' social-developmental psychology.