Destination memory in social interaction: better memory for older than for younger destinations in normal aging?

Destination memory, a memory component allowing the attribution of information to its appropriate receiver (e.g., to whom did I lend my pen?), is compromised in normal aging. The present paper investigated whether older adults might show better memory for older destinations than for younger destinations. This hypothesis is based on empirical research showing better memory for older faces than for younger faces in older adults. Forty-one older adults and 44 younger adults were asked to tell proverbs to older and younger destinations (i.e., coloured faces). On a later recognition test, participants had to decide whether they had previously told some proverb to an older/younger destination or not. Prior to this task, participants reported their frequency of contact with other-age groups. The results showed lower destination memory in older adults than in younger adults. Interestingly, older adults displayed better memory for older than for younger destinations. The opposite pattern was seen in younger adults. The low memory for younger destinations, as observed in older adults, was significantly correlated with limited exposure to younger individuals. These findings suggest that for older adults, the social experience can play a crucial role in the destination memory, at least as far as exposure to other-age groups is concerned.     

Attentional bias in post-traumatic stress disorder diminishes after symptom amelioration

Background

Avoidance and hypervigilance to reminders of a traumatic event are among the main characteristics of post-traumatic stress disorder (PTSD). Attentional bias toward aversive cues in PTSD has been hypothesized as being part of the dysfunction causing etiology and maintenance of PTSD. The aim of the present study was to investigate the cognitive strategy underlying attentional bias in PTSD and whether normal cognitive processing is restored after a treatment suppressing core PTSD symptoms.

Methods

Nineteen healthy controls were matched for age, sex and education to 19 PTSD patients. We used the emotional stroop and detection of target tasks, before and after an average of 4.1 sessions of eye movement desensitization and reprocessing (EMDR) therapy.

Results

We found that on both tasks, patients were slower than controls in responding in the presence of emotionally negative words compared to neutral ones. After symptoms removal, patients no longer had attentional bias, and responded similarly to controls.

Conclusion

These results support the existence of an attentional bias in PTSD patients due to a disengagement difficulty. There was also preliminary evidence that the disengagement was linked to PTSD symptomatology. It should be further explored whether attentional bias and PTSD involve common brain mechanisms.     

Développement de la précision temporo-motrice et cadences spontanées de jeunes enfants

Fifty children (six to ten years old) were asked to tap a flat surface as regularly as possible with their finger at different semi-spontaneous tempi. Their chosen tapping speed was estimated by each sequence's mean inter-tap interval. The range of chosen speeds widens with age. The just tenable difference (JTD) between inter-tap intervals is proportional to their reference, the mean. The motor-timing precision, estimated through the standard-deviation/mean ratio, clearly improves with age. Children are more precise at faster tempi, not around their “normal” tempo as adults. Our simple semi-spontaneous finger-tapping task could be applied to the clinical evaluation of age-dependent explicit and implicit timing components in motor performance.     

Finding words in a language that allows words without vowels

Across many languages from unrelated families, spoken-word recognition is subject to a constraint whereby potential word candidates must contain a vowel. This constraint minimizes competition from embedded words (e.g., in English, disfavoring win in twin because t cannot be a word). However, the constraint would be counter-productive in certain languages that allow stand-alone vowelless open-class words. One such language is Berber (where t is indeed a word). Berber listeners here detected words affixed to nonsense contexts with or without vowels. Length effects seen in other languages replicated in Berber, but in contrast to prior findings, word detection was not hindered by vowelless contexts. When words can be vowelless, otherwise universal constraints disfavoring vowelless words do not feature in spoken-word recognition.     

Amphetamine effects on unconditional and conditional instrumental responses with alimentary and social rewards in dogs

The effect of amphetamine dose (0.5 mg per 1 kg) on conditional and unconditional responses based on alimentary and social motivation was investigated in two groups of dogs. Amphetamine resulted in a significant decrease of conditional instrumental responses (CRs) in both groups but did not attenuate significantly the dogs’ need for food or petting. On the contrary, the drug drastically increased the dogs’ need for petting, and its anorectic effect was mild. The deteriorating effect of amphetamine on mnemonic processes and its facilitatory effect on behaviors directed to get more than the usual amount of pleasant tactile stimulation might underlie the behavioral changes described in this study.     

Amphetamine increases intertrial but not conditional instrumental responding in the cortico-basomedial amygdalar dogs

The effect of partial cortico-basomedial amygdaloid lesions on dogs’ social behavior was investigated. The lesions did not affect the conditional instrumental responding (CRs) reinforced by petting or the dogs’ need for petting (US). The lesions increased the number of intertrial responses (ITRs) in all dogs. Subsequently the effect of low amphetamine doses (0.5 mg/l kg) administered intramuscularly to the amygdalar animals on the same behavioral parameters of the social behavior was examined. Amphetamine did not affect CRs but dramatically increased the ITRs and dogs’ need for petting. These findings suggest that the cortico-basomedial amygdaloid region may be involved in the cortical inhibitory mechanisms that are indispensable for promoting behavioral acts according to their usefulness and the situational context.     

The Relations Between Traumatic Experiences,Activity, and Cognitive and Emotional Responses Among Palestinian Children

The relations between the level of traumatic experiences, degree of active participation in the Intifada, and cognitive and emotional responses were studied among 108 Palestinian children of 11–12 years of age in the Gaza Strip. The results showed that the more traumatic experiences the children had and the more they participated in the Intifada, the more concentration, attention, and memory problems they had. Traumatic experiences also increased neuroticism and risk-taking, and Intifada participation decreased self-esteem. Children's active participation in the Intifada could not protect children from developing emotional problems, as was originally assumed. The highest level of neuroticism was found among active boys who were exposed to many traumatic experiences.     

Ta‘a and modern legal reform: A rereading

Based largely on court records dating from the Ottoman and modern periods, and focusing on the issue of ta'a (a wife's obedience to her husband), this article argues that nineteenth/twentieth‐century law reform proved a mixed bag for Egyptian women. Egypt's contemporary personal status laws, while based on the Shari'a, differ significantly from gender laws, also based on the Shari'a, that were applied by courts before the reform of laws began in the 1880s. In other words, gender laws have always been legally based on the Shari'a, yet the laws and their application after legal reforms differ significantly from their application before. These differences are consequential enough to warrant calling the Shari'a practiced today ‘a new Sharia’ to differentiate it from what was practiced before.     

Arab communities in Britain: Cleavages and commonalities

Contemporary Arab communities in Britain remain sociologically under‐researched, even though the settlement of some of them can be traced back to the nineteenth century. This article provides some preliminary insights into cleavages and commonalities characterizing Arab communities in the U.K., and argues the need for a research agenda in order to ensure their equitable place in British society. See’ at beginning of page 256.