An analysis of the behaviour of day- and night-wetting children: Towards a model of micturition control

Recent research has suggested that features of daytime bladder control are of importance in predicting the treatment response of nocturnal enuretics to the enuresis alarm. This paper suggests that a detailed analysis of daytime toileting behaviour should be carried out. A study is described where 22 children with day and night wetting and 22 matched normal controls were observed after they had consumed a considerable amount of fluid. The limb movements and postures were reliably rated by two observers and wetting events and visits to the toilet were recorded. Various deficits in bladder control were shown by the enuretic children. A working model of daytime bladder control is described which draws attention to significant components which may be disturbed in abnormal bladder control. The models implies that treatment regimes should be based upon a behavioural analysis of the particular dysfunction shown by the enuretic child.     

Book reviews

Kundalni and the Physical World. Mary Scott. Routledge & Kegan Paul, London 1983 Paperback 274 pp £5.95

Seasons of the Spirit. Readings Through the Christian Year, selected and edited by George Every, Richard Harries and Kallisto's Ware, London, S.P.C.K., 1984 £7.50

Are Religious Cults Dangerous?. Carol Coulter Mercier Press Dublin and Cork 1984 ISBN 0–85342–722–4 (H/B) £4.50

The Making of a Moonie. Choice or Brainwashing?. Eileen Barker. Basil Blackwell, Oxford 1984 ISBN 0–631–13246–5 (H/B) £12     

The accuracy of ‘haptically’ measured geographical slant perception

In two recent issues of Acta, the widely accepted view of Proffitt (2006), that ‘haptic’ measures of perceived geographical slant are generally accurate, and dissociated from explicit overestimates, came under intense scrutiny (Durgin, Hajnal, Li, Tonge, and Stigliani, 2010; 2011). Durgin and colleagues' challenge to this account centred on the claim that Proffitt's haptic’ measure of geographical slant, the palm-board, may be accidently accurate due to restricted movements available at the wrist. Two experiments reported here compare the accuracy of Proffitt's palm-board with an alternative measure of geographical slant perception, the Palm-Controlled Inclinometer (PCI), which allows participants to use wrist, elbow and shoulder movements to match slant with their hand. Participants (N = 320) made slant judgements using both measures, across five hills and five staircases with 32 participants for each stimulus angle (4.5°–31°). Results for the palm-board replicated those of Proffitt and co-workers, overestimation at shallow angles (≤ 14°), contrasted with underestimation at steeper angles (≥ 23°), whereas estimates made using the PCI had a greater degree of accuracy for steeper slopes. A follow-up experiment tested the accuracy of the palm-board and PCI for surfaces in near space to repeat the design of Durgin et al. (2010, experiment 1). Participants (N = 20) used the palm-board and PCI to judge the angle of slanted blocks (25°, 30°). As with traversable slopes, PCI judgements did not differ from the actual angle of the blocks whereas the palm-board measure underestimated. ‘Haptic’ measures of geographical slant perception can be accurate for relatively steep slopes, in both near and far space.     

The role of object motion in forging long-term representations of objects

It has been suggested that objects are represented as collections of two dimensional images. Although possible in theory, such a representation must first be built, which presupposes a mechanism for collating these images. This is not trivial. Any such mechanism would have to be able to group images which differ considerably in appearance. One possible solution to this problem is to associate those images whose appearance is closely temporally correlated, on the assumption that multiple views of an object are frequently experienced in close temporal succession. This paper describes evidence for the influence of just such a mechanism in human observers, and its effect on long-term representations of initially novel faces. Discrimination performance for previously viewed faces is shown to depend on whether views of the two faces being discriminated, had previously been seen in close temporal succession or not. Irrespective of the preferred theory of how humans represent objects, these results reveal strong evidence for a novel, time-based learning mechanism that strongly influences within-category discrimination.     

The Role of Attachment and Maladaptive Emotion Regulation Strategies in the Development of Bulimic Symptoms in Adolescents

Following the theoretical propositions of the Emotion Regulation model of attachment, the current study investigated whether attachment anxiety and attachment avoidance might play a differential contributing role in the development of bulimic symptoms, through assumed differences in adopting specific maladaptive emotion regulation strategies in a sample of adolescents. Developmentally appropriate self-report questionnaires were administered to a community sample of 397 adolescents (Mean age: 14.02; 62.7% female) and this at 2 time points with a 1-year time lag. Results provided longitudinal evidence for the Emotion Regulation model of attachment in confirming the differential contributing role of the attachment dimensions on the development of bulimic symptoms in a sample of adolescents. More specifically, attachment anxiety seemed to be related to bulimic symptoms through rumination, while attachment avoidance through emotional control. These results may have clinical implications for assessment and treatment of bulimic symptoms in adolescents.