d-Serine facilitates the effects of extinction to reduce cocaine-primed reinstatement of drug-seeking behavior

Male Sprague Dawley rats were allowed to self-administer cocaine (0.5 mg/kg) during 90 min sessions for a period of 15 days. On day 16, rats were either held abstinent in their home cage environment or experienced an extinction session in which the active lever had no programmed consequences. Facilitating N-methyl-d-aspartate (NMDA) receptor activity with the coagonist d-serine (100 mg/kg i.p.) before or following the extinction session significantly reduced the subsequent cocaine-primed reinstatement of drug-seeking behavior tested on day 17. d-Serine significantly reduced drug-primed reinstatement only when combined with extinction, and its effectiveness when administered following the training session suggested that an enhancement of consolidation of extinction learning had occurred. In contrast, d-serine treatment did not reduce sucrose-primed reinstatement, indicating that the beneficial effects of this adjunct pharmacotherapy with extinction training were specific to an addictive substance (cocaine) and did not generalize to a natural reward (sucrose).     

Une étude de la pratique professionnelle de jeunes juristes : la nécessaire compétence en relations humaines

Some professions require more than others competences in human relations. It is the case of the profession of judge. Thus, Gangloff and Hardy (2006), noted that students in right did not use any criteria of social order for better knowing the person than they had to judge. This led them to take decisions without references to the individual contrary to what envisages the penal code of procedure. In the study which follows, young lawyers are confronted with actors of the school world. Cases where they have to evaluate the responsibility for actors in various situations of attacks (verbal, with the goods and physics) are submitted to them, to pupils of class of third and teachers of secondary school. It is noted that the decisions of the future lawyers are particularly different from other groups in particular on the cases of verbal attacks. Those, indeed, take little account of these kinds of damages, whereas they are very present in mind for the others. How then, not to generate incomprehension between worlds which have more and more the occasion to meet in this societal context where the right supplants morals?To prolong this reflection, it is permissible to think that additional training in human relations within the framework of the legal studies would make it possible to support the competence of the judges.     

An ecological analysis of binocular vision

Summary Underlying the classic binocularity problems of singleness and three-dimensionality is a theory that the stimulus for binocular vision constitutes two two-dimensional images and metric differences between parts of those images. This characterization of the stimulus is criticized here and in its stead an ecologically-based characterization is presented wherein a binocular transformational invariant is shown to specify absolute (body-scaled) size, shape, and distance. The transformation is characterized as a rotation and its specificity to distance assumes a constant interocular distance and either homogeneously textured or extended surfaces. Four experiments demonstrate perceivers' abilities to detect this information and report (verbally or by reaching) the absolute distances of surfaces in stereograms. A fifth experiment revealed that accurate performance did not depend on oculomotor information. The assumptions of texture extent and distribution and constant interocular distance and their possible violations were discussed. A sixth experiment demonstrated that violations of interocular distance are absorbed by surface shapes. The existence and detection of a binocular rotation dissolves the putative problems of singleness and stereopsis, indicates that the importance of having two frontal eyes is for perception of absolute distance, and reformulates the problems for an algorithmic (physiological) theory of vision.     

Perceptions of mothers: Effects of employment status,marital status,and age of child

Ninety-six female and 96 male college students evaluated a briefly described adult female stimulus person on 24 7-point bipolar scales that described personality traits and professional performance characteristics. Each subject rated 1 of 8 mothers, who was described as either employed or nonemployed, either divorced or married, and as having either a 1-year-old or 11-year-old child. Employed mothers were viewed as less family oriented, but as more instrumental than nonemployed mothers. Divorced mothers were perceived as less well adjusted but more instrumental than married mothers. Employed mothers with a 1-year-old child were rated as most professionally competent, while employed mothers with an 11-year-old child were rated as most instrumental.Portions of this paper were presented at the meeting of the Midwestern Psychological Association, Chicago, May 1987.     

Restrained eating: Mediator of gender differences on cognitive restructuring tasks?

This study examined the hypothesis that gender differences in eating restraint might mediate previously reported gender differences in cognitive restructuring tasks. Thirty female and 30 male college students matched for dietary restraint were administered two tests that had differentiated females from males and obese from normal-weight individuals in previous research: Luchins' water jar problems, and the Embedded Figures Test. On the water jar problems, use of the initial solution when no longer most efficient was greater for restrained eaters than for unrestrained eaters and no gender differences were found, supporting the hypothesis. On the Embedded Figures Test, males performed better than females, with restrained females tending to perform most poorly.Portions of this paper were presented at the meeting of the Midwestern Psychological Association, Chicago, May 1985.     

Facial identity and facial speech processing: Familiar faces and voices in the McGurk effect

An experiment was conducted to investigate the claims made by Bruce and Young (1986) for the independence of facial identity and facial speech processing. A well-reported phenomenon in audiovisual speech perception—theMcGurk effect (McGurk & MacDonald, 1976), in which synchronous but conflicting auditory and visual phonetic information is presented to subjects—was utilized as a dynamic facial speech processing task. An element of facial identity processing was introduced into this task by manipulating the faces used for the creation of the McGurk-effect stimuli such that (1) they were familiar to some subjects and unfamiliar to others, and (2) the faces and voices used were either congruent (from the same person) or incongruent (from different people). A comparison was made between the different subject groups in their susceptibility to the McGurk illusion, and the results show that when the faces and voices are incongruent, subjects who are familiar with the faces are less susceptible to McGurk effects than those who are unfamiliar with the faces. The results suggest that facial identity and facial speech processing are not entirely independent, and these findings are discussed in relation to Bruce and Young’s (1986) functional model of face recognition.     

Person perception: Effects of sex,marital status,and sex-typed occupation

A sample of 208 male college students evaluated a briefly described stimulus person on 20 7-point bipolar scales which described personality traits and professional performance characteristics. Each subject rated one of 16 persons who were described as either female or male; never married, divorced, widowed, or unmarried; and employed in either a feminine or masculine sex-typed occupation. Female stimulus persons generally were rated more favorably than male stimulus persons. The personality traits of married persons of both sexes were evaluated more favorably than those of unmarried persons. Individuals in sex-typical and sex-atypical occupations received similar evaluations.Parts of this article were presented at the meeting of the American Psychological Association, Los Angeles, August 1981.     

Some psychological correlates of generalized and focal epilepsy in children

School-aged children with two types of epilepsy, generalized and focal, were compared with normal children of the same age, sex, and IQ on measures of cognitive style, attention, motor control, and behavioral pathology. Epileptic children were found to employ less efficient cognitive strategies and to have longer reaction times and poorer control of fine motor movements than have normal children. Children with generalized epilepsy were more impaired than were normal children when sustained motor performance was required. Mothers of children with generalized epilepsy reported more behavior problems than did control mothers on an objective checklist. These results suggest special educational methods for the treatment and education of epileptic children.The research reported in this paper was supported by Grant No. MA-45O5 from the Medical Research Council of Canada. Grateful thanks are extended to Dr. Katherine Metrakos, Director of the Convulsive Disorder Clinic, Montreal Children's Hospital, who screened epileptic subjects and gave us her enthusiastic support. The Diagnostic Test Center was most helpful in providing blood serum levels on the clinical sample. We wish to thank the Notre Dame de Grace and Westmount branches of the Y.M.C.A. for access to control subjects.     

WOMEN IN A NURSING HOME Living with Hope and Meaning

A series of reminiscing-type groups for women in a nursing home is described. The purpose of this project is to use a qualitative methodology for exploring feelings and providing emotional catharsis in a population stereotyped largely by hopeless affect and lack of meaning in their lives. The women in the groups varied widely in physical and cognitive abilities; many were confused and memory-impaired. A rationale is provided for the therapist/leader's directive approach in the context of an egalitarian, feminist orientation. Results point toward an increase in interaction with others in the nursing home environment, more self-awareness and self-esteem, and a heightened empathy for other group participants. Annotated excerpts from three group sessions are included.     

Maintenance of Parent-Implemented Discrete-Trial Instruction during Videoconferencing

Access to behavior-analytic professionals who can implement interventions like discrete-trial instruction (DTI) may be limited for families living in rural communities. We trained four rural parents of children with autism to implement DTI accurately with a confederate using in vivo behavioral skills training. The DTI skills that parents demonstrated with a confederate generalized to working with their children. We then assessed whether periodic supervision during videoconferencing maintained parents’ DTI skills following training. Parents accurately implemented untrained DTI programs with their children and maintained accurate implementation over several months of remote supervision occurring twice a week, weekly, and biweekly. Videoconferencing may be an effective way for individuals responsible for direct implementation to maintain contact with behavior analysts who are not locally accessible.