Two groups of participants differing in age were compared on a time production task during which timing was temporarily interrupted. Produced intervals lengthened with increasing delay before the break occurrence, and the effect was more pronounced in older than in younger adults. A reaction time response to the signal beginning the break period was required also. Older participants responded m...

Previous work has shown that versican, decorin and a catabolic fragment of decorin, termed decorunt, are the most abundant proteoglycans in human skin. Further analysis of versican indicates that four major core protein species are present in human skin at all ages examined from fetal to adult. Two of these are identified as the V0 and V1 isoforms, with the latter predominating. The other two s...

The purpose of this study was to investigate and extend previously reported sex differences in object location memory by comparing the performance of heterosexual and homosexual males and females. Subjects were 240 healthy, right-handed heterosexual and homosexual males and females. They were instructed to study 16 common, gender-neutral objects arranged randomly in an array and subsequently te...

Socio-emotional behaviour is in part sex-related in humans, although the contribution of the biological and socio-cultural factors is not yet known. This study explores sex-related differences during the earliest communicative exchange, the neonatal imitation in 43 newborn infants (3–96 hours old) using an index finger extension imitative gesture. Results showed that although the experimenter p...

Difficulties in person recognition are among the common complaints associated with cognitive ageing. The present series of experiments therefore investigated face and person recognition in young and older adults. The authors examined how within-domain and cross-domain repetition as well as semantic priming affect familiar face recognition and analyzed both behavioral and event-related brain pot...

BACKGROUND a large proportion of falls in older people occur when walking; however the mechanisms underlying impaired balance during gait are poorly understood. OBJECTIVE to evaluate acceleration patterns at the head and pelvis in young and older subjects when walking on a level and an irregular walking surface, in order to develop an understanding of how ageing affects postural responses to ...

Multiple-object tracking is the ability to attend (keep track of) the positions of multiple target items as they move among other items. The performance of young and older adults (M = 19 and 73 years old, respectively) was compared in two versions of a tracking task in which participants were required to monitor the positions of 1-4 moving targets in a field of 10 moving items. All participants...

The purpose of the current study was to evaluate the pattern of age distribution of temporomandibular disorders (TMD) and to identify prevalence peaks for the different diagnoses. The study sample (N = 383; F:M ratio = 3.9; mean age range 41.7 +/- 17 years) consisted of patients seeking treatment for TMD and who were assessed in accordance with the Research Diagnostic Criteria for Temporomandib...

Even though user-related variables are important determinants of presence, quite little is known about their role. The main aim of the present study was to examine differences in presence experience as a function of personality. Participants navigated through a multimedia presentation on a desktop computer. Half of them had the opportunity to navigate through the stimulus without interruptions,...

These pages summarize the user-based evaluation of INFO2000, the prototype of a multifunctional in-car information system. The aim of the study was to investigate the very first impact of INFO2000 on both young and elderly potential users. It emerged that INFO2000 was initially less usable for elderly. Nevertheless, this difference tended to diminish with the practice and the elderly attitude t...