Visual Perception in Acoustically Deprived and Normally Hearing Children

In the present study an attempt was made to establish if and to what extent auditory deprivation modifies the processes of visual analysis and synthesis. The study included 54 children aged 10–16 years with hearing impairment attending the School and Educational Center for Children with Hearing Impairment in Wroc?aw (group I) and 127 children with normal hearing acuity attending public schools (group II), forming a reference group. Hearing impairment in the children of group I was from 60 to 100 dB. In 9 of these children the hearing impairment was inherited, while in some others it was acquired and resulted from rubella during the mother's pregnancy (5 subjects) or a severe disease course in childhood, for instance cerebral meningitis (4 subjects) and otolaryngologic antibiotic therapy (7 subjects). In the remaining subjects the reason for auditory deprivation was unknown. Hearing impairment, apart from genetically conditioned causes, appeared in the first months or years of life. The general intellectual level of the examined children was similar to that of their control counterparts, which was confirmed by school psychologists during a routine examination. The examination was performed by means of two tests from the Nonverbal Score of the Wechsler Intelligence Scale for Children: Puzzles and Block Design. The children with a hearing deficit generally needed more time to perform the tasks than those with normal hearing. The investigated parameters of visual perception improved in correlation with age, but the dynamics of these changes were different in the two study groups.     

Dissociable contributions of the left and right posterior medial orbitofrontal cortex in motivational control of goal-directed behavior

Several findings from both human neuroimaging and nonhuman primate studies suggest that the posterior medial orbitofrontal cortex (OFC) may be critical for the motivational control of goal-directed behavior. The present study was conducted to clarify the role of the left and right posterior medial OFC in that function by examining the effects of focal unilateral lesions to this region on the performance on an incentive working memory task. The study covered patients who had undergone surgery for an ACoA aneurysm and normal control subjects (C). The patients were subdivided into three groups: those with resection of the left (LGR+) or right (RGR+) posterior part of the gyrus rectus, and without such a resection (GR−). Participants performed a 2-back working memory task under three motivational conditions (penalty, reward, and no-incentive). The C group performed worse in the penalty condition and better in the reward condition as compared to the no-incentive condition. Similar results were obtained for the GR− group. Performance of the LGR+ group did not depend on incentive manipulations, whereas the RGR+ group performed better in both the penalty and reward conditions than in the no-incentive condition. The results show that the posterior medial OFC is involved in the motivational modulation of working memory performance. Our findings also suggest that the left posterior medial OFC plays a crucial role in this function, whereas the right posterior medial OFC is particularly involved in the processing of the punishing aspect of salient events and it probably mediates in guiding behavior on the basis of negative outcomes of action.     

Generation difficulty and memory for source

The role of the word predictability from sentence context for reality monitoring and external source monitoring was examined in two experiments. In a reality-monitoring task, discrimination of an internal source was better in the hard than in the easy condition. It is probable that extra cognitive operations engaged during word generation in the hard condition were effective cues for reality-monitoring judgements. In contrast, in an external source-monitoring task (recognition memory of item's colour), the hard condition resulted in worse source memory for generated words than did the easy condition. This result is consistent both with an item-context trade-off hypothesis and a processing hypothesis. Greater effort involved at the time of generation might limit resources available for encoding of an external source. It is also possible that for generated words, the hard condition promoted conceptual processing instead of perceptual processing; therefore the item's colour was not effectively encoded.     

Berdjaev: authentic existence or a negative sociology

This paper is a contribution to the constantly increasing Polish interest in Russian thought, especially in Nicolas Berdjaev’s philosophy. The differences between Western philosophy and Russian religious thinking are mentioned in passing. Berdjaev’s existential personalism, which from the sociological point of view can be described as a freedom from the world, is dealt with. The thinker contrasts persons and their activities with the objectified world and emphasizes the existential strangeness of the person in the world of culture bound by different determining factors.     

Psychologism and Metalogic

This paper examines two arguments againstpsychologism advanced by Frege andHusserl. The first argument says that thelaws of logic cannot be justified by thelaws of psychology, because the formerand a priori and certain, but the latterare probable only. The second argumentpoints out that the status of logicallaws as universal principles of thinking isnot intelligible on the psychologisticinterpretation of logic. The author tries toshow how to examine both arguments bymetalogical devices.     

Gender Differences in Vivid Memories

Seventy-four adults (50% women) individually completed a memory questionnaire. They were given a definition of a flashbulb memory and were asked to describe their 3 most vivid memories. In addition, participants rated the described events for various characteristics (e.g., emotional load and personal importance) and provided their best estimate of the date of each event. Effects of gender on the content of vivid memories, their form, and their distribution were found. The influence of identity on the recollection of personal experiences and gender differences in the development of autobiographical memory are discussed.     

Apport démographique de l’immigration internationale dans la région Métropolitaine de recensement (RMR) de Montréal, 1976–1996

This study assesses the total net demographic contribution of international immigrants in the census metropolitan area (CMA) of Montreal in 1996. Most work on this topic uses the “place of birth” criterion implied by the concept of a “native born” population. However, this limits the “immigrant population”, by inappropriately assigning births to immigrants to the non-immigrant or “native born” sub-population. This has a direct effect on the levels of observed indicators of both groups, such as the proportion of the immigrant population, the mean age, the median age etc. In addition to the total number of surviving migrants (direct contribution), the estimate here also includes children born to the immigrants during the period (1976–1996) and surviving in Montreal at the end of the period (indirect contribution). Montreal’s total population in 1996 can therefore be broken down into the “extended immigrant population” (EIP) and the “restricted native population” (RNP). One of the main consequences of this new approach is a marked change in the age structure for each restructured sub-group. For instance, once the births to immigrants during the period under study are included in the EIP instead of the “native population”, the median age of immigrants drops from 43.9 years to 38.2 years, a reduction of almost six years, bringing it much closer to that age in the population as a whole (36.2 years).     

On deontic logic

Some requirements concerning deontic logic are formulated and discussed. Stress is laid on the need to distinguish between theories and deductive systems. It is argued that deontic theories need not be closed under the rule of detachment. Two deontic calculi, called DSC₁, DSC², are presented and talked over.This paper was delivered before the Conference on Practical and Philosophical Motivations of Non-Classical Logics, Toru, August 16, 1979.