Detecting changes in simulated events using partial‐interval recording and momentary time sampling

In a series of three studies, we evaluated simulated data with reversal designs to determine whether partial‐interval recording (PIR) and momentary time sampling (MTS) detected changes that were evident with continuous measures. The results from Study 1 showed that MTS with interval sizes up to 30 s detected most of the moderate and large changes in duration events and MTS with interval sizes up to 1 min detected most large changes in duration events. By comparison, PIR with 10‐s intervals detected approximately half of all changes in duration events. The results of Study 2 showed that only 10‐s PIR reliably detected most small, moderate, and large changes in frequency events. The results of Study 3 showed that PIR with 10‐s intervals generated a relatively high percentage of false positives for duration events, whereas MTS did not. As a whole, the results support previous findings, but also provide new guidelines for the use of PIR and MTS. Copyright © 2008 John Wiley & Sons, Ltd.     

Paradoxical sleep deprivation impairs acquisition, consolidation, and retrieval of a discriminative avoidance task in rats

The aim of the present study was to investigate the effects of paradoxical sleep deprivation (PSD) for 96 h on the learning/memory processes in rats submitted to the plus-maze discriminative avoidance task (PM-DAT), which simultaneously evaluates learning, memory, anxiety and motor function. Four experiments were performed in which rats were submitted to: (1) post-training and pre-test PSD; (2) post-training or pre-test PSD; (3) pre-training PSD or pre-training paradoxical sleep (PS) rebound (24 h) and (4) pre-test PSD rebound. Concerning Experiment I, post-training and pre-test PSD induced memory deficits, an anxiolytic-like behavior and an increase in locomotor activity. In Experiment II, both post-training PS-deprived and pre-test PS-deprived groups showed memory deficits per se. However, only the pre-test PS-deprived animals presented anxiolytic-like behavior and increased locomotor activity. In Experiment III, pre-training PS-deprived rats showed learning and memory deficits, anxiolytic-like behavior and increased locomotor activity. A 24h-sleep recovery period after the PSD abolished the learning and memory deficits but not anxiety and locomotor alterations. Finally, sleep rebound did not modify acquisition (Experiment III) and retrieval (Experiment IV). This study strengthened the critical role of paradoxical sleep (but not sleep rebound) in all the phases of learning and memory formation. In addition, it suggests that PSD effects on acquisition and consolidation do not seem to be related to other behavioral alterations induced by this procedure.     

Differences in personality between sustained hypertension,isolated clinic hypertension and normotension

The aim of this study was to determine whether there are differences in personality between hypertension and normotension. Forty‐two male patients with essential hypertension were divided into two groups after self‐assessment of blood pressure, 18 with sustained hypertension and 24 with isolated clinic (white coat) hypertension, and were compared with 25 men with normotension on Spielberger's State‐Trait Anxiety Inventory and the Jenkins Activity Survey. In line with hypotheses, the sustained hypertensive group showed higher levels of trait anxiety, Type A behaviour pattern, and hard‐driving behaviours/competitiveness than the normotensive group, whereas isolated clinic hypertensives occupied an intermediate position between those two groups. Results provide support to the hypothesised relationship between personality and hypertension and stress the need of distinguishing sustained hypertension from isolated clinic hypertension. Copyright © 2006 John Wiley & Sons, Ltd.     

Sex and culture differences in perceptions of estimated multiple intelligence for self and family: A Macanese1Portuguese comparison

Differences in sex and culture between Macanese and Portuguese university students in self and parental estimations of IQ were examined using Gardner's ( 1999 ) list of 10 multiple intelligences. A total of 197 Macanese (90 male and 107 female) and 331 Portuguese (139 male and 192 female) students participated in the investigation. The following hypotheses were tested: it was anticipated that there would be sex differences in self‐rated mathematical and spatial intelligence, with men giving higher self‐estimates than women; it was predicted that there would be cultural differences between Macanese and Portuguese, with the former awarding themselves and their parents significantly lower scores than the latter; participants would rate their fathers as more intelligent overall than their mothers; the best predictors of overall (g) IQ would be logical/mathematical, spatial, and verbal intelligence. In contrast to previous results (Furnham, 2001 ), when examined separately, gender differences in both self‐estimates and parents estimates did not occur in the Macanese sample. There were, however, consistent and clear culture differences. Portuguese gave higher self and family ratings than Macanese, as expected. Portuguese rated their verbal, body kinetic, interpersonal, intrapersonal, and naturalistic intelligence higher than did Macanese. Portuguese rated verbal, mathematical, spatial, interpersonal, intrapersonal, existential, and naturalistic father's intelligence higher than did Macanese. Portuguese rated verbal, mathematical, spatial, musical, interpersonal, intrapersonal, existential, spiritual, and naturalistic mother's intelligence higher than did Macanese. Participants of both cultures rated overall intelligence of their father higher than that of their mother. This was also to be expected as previous studies have shown this to be the case in terms of gender stereotyping. In both cultures verbal and interpersonal intelligences predict overall intelligence. However, in Macao, body‐kinetic and intrapersonal intelligences, and in Portugal logical and naturalistic intelligences, also predict overall intelligence. Implications of these results for education and self‐presentations are considered.     

Brooding and reflection: rumination predicts suicidal ideation at 1-year follow-up in a community sample

The cognitive processes underlying suicidal thinking and behavior are not well understood. The present study examined brooding and reflection, two dimensions of rumination, as predictors of suicidal ideation among a community sample of 1134 adults. Participants completed self-report measures of rumination and depression, and a semi-structured clinical interview that included an assessment of suicidal ideation, at baseline and 1-year follow-up. Brooding was more strongly related to degree of ideation at baseline than was reflection. However, both brooding and reflection predicted whether an individual thought about suicide at 1-year follow-up, even after adjusting for baseline suicidal ideation. Symptoms of depression mediated the relationship between brooding and ideation but not that between reflection and ideation. Implications for the nature of thought processes that result in suicidal thinking are discussed.     

To Use or Not to Use: Male Partners' Perspectives on Decision Making About Prenatal Diagnosis

We conducted an exploratory, qualitative pilot study investigating the use of genetic counseling and prenatal genetic technologies between women and their male partners for two referral groups: pregnant women 35 years of age and over (AMA) at the time of delivery and pregnant women with an abnormal maternal serum triple screen (MSAFP3). The convenience sample consisted of 25 semistructured interviews and 50 observations of genetic counseling sessions. Male partners' styles of decision making and the way they viewed prenatal diagnosis decision making were examined. We defined three decision-making styles based on our interpretation of the data: (1) domain, (2) joint-delegated, and (3) saliency. The male partners also seemed to view prenatal diagnosis as either an information decision or an action decision and appeared to take a more active role in decision making when the decision was viewed as an action decision.     

A feeding scale for research and clinical practice to assess mother—infant interactions in the first three years of life

The Feeding Scale provides a reliable rating of mother-infant/toddler interactions during a 20-minute feeding in a laboratory setting. The scale consists of 46 mother and infant behaviors, which are rated at the end of the feeding session. Observations of mother—infant interactions during two feedings separated by 2 weeks showed considerable stability. Five subscale scores are derived (1) Dyadic Reciprocity, (2) Dyadic Conflict, (3) Talk and Distraction, (4) Struggle for Control, and (5) Maternal Non-Contingency, Predictive validity of the Feeding Scale has been demonstrated and it discriminates between infants with and without feeding disorders as well as three diagnostic categories of feeding-disordered infants. The Feeding Scale can be used with infants and toddlers ranging in age from 1 month to 3 years. © 1997 Michigan Association for Infant Mental Health     

Altering withdrawn and intrusive interaction behaviors of depressed mothers

Interaction coaching was given to 44 depressed mothers who had either a withdrawn or intrusive interaction style with their infants. The intrusive and withdrawn mothers were given instructions either to imitate their infants' behavior or to keep their infants' attention. The results suggested that the specific type of interaction coaching for the specific type of depressed mother (imitation for the intrusive mothers and attention-getting for the withdrawn mothers) significantly improved their interaction behaviors with their infants.     

The cerebral,extra-cerebral bodily,and socio-cultural dimensions of enculturated arithmetical cognition

Arithmetical cognition is the result of enculturation. On a personal level of analysis, enculturation is a process of structured cultural learning that leads to the acquisition of evolutionarily recent, socio-culturally shaped arithmetical practices. On a sub-personal level, enculturation is realized by learning driven plasticity and learning driven bodily adaptability, which leads to the emergence of new neural circuitry and bodily action patterns. While learning driven plasticity in the case of arithmetical practices is not consistent with modularist theories of mental architecture, it can be enriched by the theory of neural reuse. According to neural reuse, cerebral regions are reused to contribute to multiple neural circuits in functionally constrained ways throughout ontogeny. By hypothesis, learning driven plasticity is complemented by learning driven bodily adaptability, which suggests that there is an interesting functional relationship between finger gnosis, finger counting, and arithmetical practices. The emerging perspective on enculturated arithmetical cognition will be complemented by considerations on associated developmental and acquired disorders, namely developmental dyscalculia and acquired acalculia. The upshot is that we need to take the cerebral, extra-cerebral bodily, and socio-cultural dimensions of enculturation into account in order to arrive at a better understanding of the phylogenetic and ontogenetic conditions of arithmetical cognition.