An evaluation of progressively increasing intertrial intervals on the acquisition and generalization of three social skills

We evaluated the effects of different intertrial intervals (ITIs; time between programmed learning opportunities) on the acquisition and generalization of 2 preschoolers' social skills. Independent and generalized skills were observed only when the daily ITI was gradually increased from short to progressively longer intervals.     

Evidence for a non-lexical influence on children's auditory repetition of familiar words

This paper examines evidence for a nonlexical influence on children's repetition of real words. We investigate the extent to which two computational models of auditory repetition can simulate the performance of 68 children aged between 5 and 11?years-old when they are attempting to repeat familiar words. Both computational accounts were derived from Foygel and Dell's (J Mem Lang 43:182-216, 2000) semantic-phonological model of picture-naming. Results showed that a dual-route model in which a lexical and a nonlexical route work together to repeat familiar words (Hanley et?al. in Cogn Neuropsychol 21:147-158, 2004) provided an accurate simulation of children's repetition, whereas Foygel and Dell (J Mem Lang 43:182-216, 2000) single lexical-route model under-predicted performance. The only exception was the repetition performance of 5?year-old children, which was over-predicted by the dual-route model. It is argued that at 5?years of age, some children have available both a lexical and a nonlexical repetition route but the output of the two routes does not summate when real words are being repeated. Some young children may lack the attentional skills that would enable them to co-ordinate the activity of the lexical and nonlexical repetition routes.     

It is more difficult to retrieve a familiar person's name and occupation from their voice than from their blurred face

Damjanovic and Hanley (2007) showed that episodic information is more readily retrieved from familiar faces than familiar voices, even when the two presentation modalities are matched for overall recognition rates by blurring the faces. This pattern of performance contrasts with the results obtained by Hanley and Turner (2000) who showed that semantic information could be recalled equally easily from familiar blurred faces and voices. The current study used the procedure developed by Hanley and Turner (2000) and applied it to the stimuli used by Damjanovic and Hanley (2007). The findings showed a marked decrease in retrieval of occupations and names from familiar voices relative to blurred faces even though the two modalities were matched for overall levels of recognition and rated familiarity. Similar results were obtained in Experiment 2 in which the same participants were asked to recognise both faces and voices. It is argued that these findings pose problems for any model of person recognition (e.g., Burton, Bruce, & Johnston, 1990) in which familiarity decisions occur beyond the point at which information from different modalities has been integrated.     

Transcendental Meditation and Social Psychological Attitudes

Students who practiced Transcendental Meditation (TM) from four university and college campuses were individually matched on seven variables with students from the general population of the same campuses (N # 23 matches). Results of a questionnaire designed to tap six social psychological attitudes indicated significant differences between these groups on five attitudes, with meditating students indicating more positive attitudes. In addition, matched meditating students (N # 6 matches) were compared on the variables of exposure to the TM philosophy and length of time meditating. Results on the exposure dimension found no significant difference between those with high or low exposure on the measured attitudes. Results on the length dimension found long term meditators with significantly more positive attitudes than short term meditators.     

What’s in the name? Categorical perception for unfamiliar faces can occur through labeling

The conditions under which categorical perception (CP) occurs for unfamiliar faces are unclear. Although CP is generally found only for familiar faces, it has been reported for unfamiliar faces after brief training (Levin & Beale, 2000) or even without any learning of the original faces (Campanella, Hanoteau, Seron, Joassin, & Bruyer, 2003). Three experiments investigated whether CP can be observed for an unfamiliar morphed face continuum without preexposure to the endpoints of the continuum (Experiment 1); with brief exposure to the endpoints (Experiment 2); or with exposure to named endpoints (Experiment 3). CP was always observed for matched pairs of famous faces. However, CP for unfamiliar faces was induced only when participants observed names paired with the endpoint faces before the start of the experiment. The results suggest that CP effects for unfamiliar faces can be observed extremely rapidly when clear category labels are presented.     

A five‐year evaluation of the effectiveness of person‐centred counselling in routine clinical practice in primary care

Counselling is the recommended treatment for individuals with mild to moderate mental health problems of recent onset. In this evaluation of a primary care counselling service offering person‐centred counselling, the Core Outcome Measure (CORE‐OM) was administered at referral and at the beginning and end of therapy. A pre‐post therapy effect size for 697 individuals over a 5 year period was 1.2. This compares with a waitlist (between referral and pre therapy) effect size of 0.24 for 382 individuals over a three year period. The results indicate that person‐centred counselling is effective for clients with common mental health problems, such as anxiety and depression. Effectiveness is not limited to individuals with mild to moderate symptoms of recent onset, but extends to people with moderate to severe symptoms of longer duration.     

No End in Sight: Causal Loops in Philosophy, Physics and Fiction

There have been many objections to the possibility oftime travel. But all the truly interesting ones concern the possibility of reversecausation. What is objectionable about reverse causation? I diagnose that the trulyinteresting objections are to a further possibility: that of causal loops. I raisedoubts about whether there must be causal loops if reverse causation obtains; but devote themajority of the paper to describing, and dispelling concerns about, various kinds ofcausal loop. In short, I argue that they are neither logically nor physically impossible.The only possibly objectionable feature that all causal loops share is that coincidenceis required to explain them. Just how coincidental a loop will be varies: some arereally quite ordinary, and some are incredibly unlikely. I end by speculating thatthe tendency amongst physicists to avoid discussion of causal loops involving intentionalaction may have been unfortunate, since intentional action is an excellent way tonon-mysteriously bring about what otherwise would have been an unlikely coincidence. Hencecausal loops may be more likely in a world with beings like us, than in one without.