Understanding communicative intentions and semiotic vehicles by children and chimpanzees

Developmental and comparative studies of the ability to understand communicative intentions using object-choice tasks raise questions concerning the semiotic properties of the communicative signals, and the roles of rearing histories, language and familiarity. We adapted a study by Tomasello, Call, and Gluckman (1997), in which a “helper” indicated the location of a hidden reward to children of three ages (18, 24, and 30 months) and to four chimpanzees, by means of one of four cues: Pointing, Marker, Picture and Replica. For the chimpanzees, we controlled for familiarity by using two helpers, one unfamiliar and one highly familiar. Even 18-months performed well on Pointing and Marker, while only the oldest group clearly succeeded with Picture and Replica. Performance did not correlate with scores for the Swedish Early Communicative Development Inventory (SECDI). While there were no positive results for the chimpanzees on the group level, and no effect of familiarity, two chimpanzees succeeded on Pointing and Marker. Results support proposals of a species difference in understanding communicative intentions, but also highlight the need to distinguish these from the complexity of semiotic vehicles and to consider both factors.     

Trait complexes and academic achievement: Old and new ways of examining personality in educational contexts

Background . Although recent research has provided evidence for the predictive validity of personality traits in academic settings, the path to an improved understanding of the nature of personality influences on academic achievement involves a reconceptualization of both criterion and predictor construct spaces. Aims . For the criterion space, one needs to consider student behaviours beyond grades and level of educational attainment, and include what the student does among other things outside of the classroom. For the predictor space, it is possible to bring some order to the myriad personality constructs that have been developed over the last century, by focusing on common variance among personality and other non‐ability traits. Methods . We review these conceptual issues and several empirical studies. Conclusions . We demonstrate the possible increments in understanding non‐ability determinants of academic achievement that may be obtained by focusing on areas where there is a theoretical convergence between predictor and criterion spaces.     

Infants show enhanced neural responses to musical meter frequencies beyond low-level features

Music listening often entails spontaneous perception and body movement to a periodic pulse-like meter. There is increasing evidence that this cross-cultural ability relates to neural processes that selectively enhance metric periodicities, even when these periodicities are not prominent in the acoustic stimulus. However, whether these neural processes emerge early in development remains largely unknown. Here, we recorded the electroencephalogram (EEG) of 20 healthy 5- to 6-month-old infants, while they were exposed to two rhythms known to induce the perception of meter consistently across Western adults. One rhythm contained prominent acoustic periodicities corresponding to the meter, whereas the other rhythm did not. Infants showed significantly enhanced representations of meter periodicities in their EEG responses to both rhythms. This effect is unlikely to reflect the tracking of salient acoustic features in the stimulus, as it was observed irrespective of the prominence of meter periodicities in the audio signals. Moreover, as previously observed in adults, the neural enhancement of meter was greater when the rhythm was delivered by low-pitched sounds. Together, these findings indicate that the endogenous enhancement of metric periodicities beyond low-level acoustic features is a neural property that is already present soon after birth. These high-level neural processes could set the stage for internal representations of musical meter that are critical for human movement coordination during rhythmic musical behavior.

Research Highlights

• 5- to 6-month-old infants were presented with auditory rhythms that induce the perception of a periodic pulse-like meter in adults.
• Infants showed selective enhancement of EEG activity at meter-related frequencies irrespective of the prominence of these frequencies in the stimulus.
• Responses at meter-related frequencies were boosted when the rhythm was conveyed by bass sounds.
• High-level neural processes that transform rhythmic auditory stimuli into internal meter templates emerge early after birth.

     

Common principles of psychotherapeutic change: patterns of use

ABSTRACT

Many authors have proposed the existence of common principles of counselling and psychotherapeutic change. However, little is known about how practitioners use these change principles. A sample of 373 Czech psychotherapists and counsellors participated in an online survey and rated their use of 10 psychotherapy change principles in their practice over the previous year. The frequency of the use of the 10 change principles is reported. Furthermore, three principal components of the change principles were identified: exploration, acceptance, and understanding of clients’ experience; attending to clients’ own resources; and furnishing clients with new skills and advice. The use of these components was mainly associated with the practitioner's theoretical orientation. The implications of the component structure for psychotherapist and counsellor training and practice are discussed.     

The art of healing and the many worlds of time

This essay is a contribution to the understanding of the difficulties involved in integrating biomedicine and holistic medicine. The phenomenology of the perception of time as described by Mann, Siegler, and Osmond is postulated as underlying the different orientations to the practice of medicine.