How the Learning Path and the Very Structure of a Multifloored Environment Influence Human Spatial Memory

Few studies have explored how humans memorize landmarks in complex multifloored buildings. They have observed that participants memorize an environment either by floors or by vertical columns, influenced by the learning path. However, the influence of the building’s actual structure is not yet known. In order to investigate this influence, we conducted an experiment using an object-in-place protocol in a cylindrical building to contrast with previous experiments which used rectilinear environments. Two groups of 15 participants were taken on a tour with a first person perspective through a virtual cylindrical three-floored building. They followed either a route discovering floors one at a time, or a route discovering columns (by simulated lifts across floors). They then underwent a series of trials, in which they viewed a camera movement reproducing either a segment of the learning path (familiar trials), or performing a shortcut relative to the learning trajectory (novel trials). We observed that regardless of the learning path, participants better memorized the building by floors, and only participants who had discovered the building by columns also memorized it by columns. This expands on previous results obtained in a rectilinear building, where the learning path favoured the memory of its horizontal and vertical layout. Taken together, these results suggest that both learning mode and an environment’s structure influence the spatial memory of complex multifloored buildings.     

Family Communication Following BRCA1/2 Genetic Testing: A Close Look at the Process

This study examines the process of communicating BRCA1/2 genetic test results to family members, and the factors influencing disclosure. Twenty-nine semi-structured telephone interviews with BRCA1/2 tested individuals, 4 to 9 years post-notification, were conducted. Our results suggest that individual, familial, relational and socio-medical factors influence the decision to disclose/not disclose genetic test results to family members. These factors are at play in all three communication phases: the Decision-making phase, in which the individual ponders various factors before deciding to disclose test results to family members; the Disclosure phase, in which communication per se takes place; and the Reaction phase, which shapes the participant’s subsequent disclosure/non-disclosure decisions. We propose a guiding framework to assist in identifying and evaluating significant factors that might shape the course and outcome of the transmission of genetic information to family members.     

L’expertise médicale fondée sur les faits

The concept of evidence-based medicine applies to medical activity in general in order to rationalize it. The medical expertise, constantly looking to improve its quality, can no longer ignore this concept. This is the best tool to meet the mission entrusted to experts of assessing the conformity of care to the scientific-acquired features, without neglecting the assessment of the involved practitioner's skills and the particular circumstances of the plaintiff. This article develops the new concept of “Medical expertise based on facts”.     

Introversion-Extraversion and Sun-Sign

A variable frequently overlooked in assessing alternative teaching methods is students' previous exposure to an instructor's testing methods. The present study tested the hypothesis that test performance would be significantly higher among students in a single instructor lecture approach, where all tests were prepared by the same instructor, as compared to the team-teaching approach, where each test was prepared by a different instructor. Results indicated that prior test exposure to a single instructor's tests does have the effect of improving students' test performance on objective type tests, perhaps due to reduced test-taking anxiety, because the students have an opportunity to become accustomed to the instructor's style of testing.     

Bootstrapping word order in prelexical infants: a Japanese-Italian cross-linguistic study

Learning word order is one of the earliest feats infants accomplish during language acquisition [Brown, R. (1973). A first language: The early stages, Cambridge, MA: Harvard University Press.]. Two theories have been proposed to account for this fact. Constructivist/lexicalist theories [Tomasello, M. (2000). Do young children have adult syntactic competence? Cognition, 74(3), 209-253.] argue that word order is learned separately for each lexical item or construction. Generativist theories [Chomsky, N. (1995). The Minimalist Program. Cambridge, MA: MIT Press.], on the other hand, claim that word order is an abstract and general property, determined from the input independently of individual words. Here, we show that eight-month-old Japanese and Italian infants have opposite order preferences in an artificial grammar experiment, mirroring the opposite word orders of their respective native languages. This suggests that infants possess some representation of word order prelexically, arguing for the generativist view. We propose a frequency-based bootstrapping mechanism to account for our results, arguing that infants might build this representation by tracking the order of functors and content words, identified through their different frequency distributions. We investigate frequency and word order patterns in infant-directed Japanese and Italian corpora to support this claim.     

The Preliminary Employment Interview as a Predictor of Assessment Center Outcomes

The current study examined the relationships between personnel employment interview scores (PEI), cognitive ability test scores (CAT) and assessment center (AC) scores, as well as the potential to circumvent the costly AC method for some of the candidates by using these less expensive selection methods. A total of 423 Israeli police force candidates participated in the study. Their PEI and CAT scores were collected in the first stage of the selection process. They subsequently participated in an AC and a final decision was made regarding their acceptance to the police force. It was found that PEI and CAT scores significantly correlated with the AC scores and the recruitment decision, although the PEI scores demonstrated stronger correlations with the criteria. An actuarial analysis demonstrated the benefit of using the AC procedure for those achieving middle range scores on the PEI and CAT, circumventing the costly ACs for those achieving high and low scores. This strategy resulted in minor costs of both α and β errors. Organizations can adopt this economical strategy when the AC costs exceed the manpower costs incurred by disposing of the AC.     

Newborn right-holding is related to depressive symptoms in bottle-feeding mothers but not in breastfeeding mothers

This study examines the relationships between infant holding preferences and maternal depression according to the newborn feeding mode. Links between depression and infant holding biases have been observed in mothers [Vauclair, J., Scola, C. (in press). Dépression, alexithymie et latéralisation dans la fa?on de porter un nouveau-né [Infant holding biases in relation to depression, alexithymia and laterality]. Annales Médico-psychologiques; Weatherill, R. P., Almerigi, J. B., Levendosky, A. A., Bogat, G. A., von Eye, A., & Harris, L. J. (2004). Is maternal depression related to side of infant holding? International Journal of Behavioral Development, 28, 421-427] but the fact that breastfeeding has never been studied in relation to these two factors is surprising as breastfeeding has some influence on depression (e.g., [Mezzacappa, E. S., Guethlein, W., Vaz, N., & Bagiella, E. (2000). A preliminary study of breast-feeding and maternal symptomatology. Annals of Behavioral Medicine, 22, 71-79]) and must also affect holding biases. Mothers who just gave birth (N=100) were tested few days after delivery. Measures of handedness, infant holding-side preferences, and level of depressive symptoms expressed by mothers (assessed with the CES-D scale) were collected via questionnaires. Asymmetries in emotional perception were assessed via a Chimeric Figure Task and a Dichotic Listening Task. Results showed that breastfeeding (1) reduced left-side bias for holding newborns and (2) was associated with lowest levels of depressive symptoms. Moreover, holding biases were related to maternal depression in bottle-feeding but not in breastfeeding mothers, namely that holding on the right-side while bottle-feeding was associated with higher levels of depressive symptoms. These results were not due to hemispheric specialization as auditory and visual asymmetries were similar between breastfeeding and bottle-feeding mothers. The discussion emphasizes the striking role of the early mother/child relationship's establishment on infant holding biases.     

SPACE AND RELIGION: AN INTERWEAVING OF INFLUENCES

Since the earliest ages of humanity, the contemplation of the starry sky has invited the human being to ask: “Who am I? Where is my origin? What is my destiny?” The revolution introduced by modem astronomy has affected how humankind understands itself, and the development of aeronautical and then astronautical techniques introduced a new experiment for humanity—that of being citizen of the sky. By carrying out the dream of Icarus, has humanity realized the attempt of Prometheus? Would we take the place of the gods or God? Do religions have to fear the conquest of space? Despite modern science and the knowledge we have accumulated, space still holds its share of mystery, nurtured by its vast dimensions and startling beauty. Space continues to raise the issue of meaning.     

Effect of arousal on internal clock speed in real action and mental imagery.

The possible implication of an internal clock as a mechanism accounting for the temporal homology between actual and mental walking is studied. To observe this phenomenon, stressful sound stimuli were used to increase arousal, which is known to activate the internal clock. Seventeen participants performed three tasks: (1) a time production task, used as a reference task reflecting the internal clock speed; (2) an actual walking task; and (3) a mental walking task, all three in two sound conditions (no noise and noise). The results showed a significant effect of arousal on time in each task. The effect of noise, increasing the arousal level, was greater in time production and mental imagery tasks than in real action. In addition, the percentages of change between the two sound conditions for actual and mental walking time were not statistically different. These findings are further evidence of the existence of a timing process common to actual and mental walking. The data are consistent with the implication of an internal clock in both actual and mental walking.