Small and large number processing in infants and toddlers with Williams syndrome

Previous studies have suggested that typically developing 6‐month‐old infants are able to discriminate between small and large numerosities. However, discrimination between small numerosities in young infants is only possible when variables continuous with number (e.g. area or circumference) are confounded. In contrast, large number discrimination is successful even when variables continuous with number are systematically controlled for. These findings suggest the existence of different systems underlying small and large number processing in infancy. How do these develop in atypical syndromes? Williams syndrome (WS) is a rare neurocognitive developmental disorder in which numerical cognition has been found to be impaired in older children and adults. Do impairments of number processing have their origins in infancy? Here this question is investigated by testing the small and large number discrimination abilities of infants and toddlers with WS. While infants with WS were able to discriminate between 2 and 3 elements when total area was confounded with numerosity, the same infants did not discriminate between 8 and 16 elements, when number was not confounded with continuous variables. These findings suggest that a system for tracking the features of small numbers of object (object‐file representation) may be functional in WS, while large number discrimination is impaired from an early age onwards. Finally, we argue that individual differences in large number processing in infancy are more likely than small number processing to be predictive of later development of numerical cognition.     

The role of computer‐aided psychotherapy within an NHS CBT specialist service

To date, the feasibility of computer‐aided psychotherapy as an intervention has only been recognised in primary care practice. The present study sought to evaluate the impact of ‘Beating the Blues’ (BtB), an established computerised cognitive behaviour therapy (CCBT) self‐help programme for the management of anxiety and depression, within an NHS CBT specialist healthcare centre. Of the 555 service users who used BtB as part of routine care, with follow‐up assessment at six to eight weeks, 71% completed all eight sessions. Statistically significant differences on the Beck Depression Inventory‐II (BDI‐II) and Beck Anxiety Inventory (BAI) were found in completer and intention‐to‐treat analyses; 50% of completers achieved reliable change on the BDI‐II and approximately 25% of completers achieved reliable and clinically significant change on both measures. Outcomes were benchmarked against outcomes in studies of routine face‐to‐face CBT. These findings provide evidence that BtB may be of value to service users in secondary mental healthcare centres, alleviating current burdens on public health and therapeutic resources. Future research directions should include examining which factors influence individuals’ decisions to try computer‐aided psychotherapy, which individuals are best suited to using these interventions, and why some users drop out prior to programme completion.     

Understanding Pamina's recovery: An application of the hermeneutic single‐case efficacy design

This article reports an effectiveness case study of the individual systemic therapy of a 22‐year‐old Portuguese woman with a diagnosis of paranoid personality disorder, conducted in a university‐based clinic in Lisbon, Portugal. Data were analysed using the hermeneutic single‐case efficacy design, a non‐experimental interpretive approach that aims to determine whether change occurred, whether change was due to therapeutic strategies, and what in therapy caused the change. Results indicate that the treatment was effective and that de‐pathologising Pamina's condition and genogram‐based exploration techniques played a crucial role in her recovery.     

Family in transition: parents,children and grandparents in lesbian families give meaning to ‘doing family’

Lesbian parents, their children and grandparents ‘do family’ in rich and diverse ways. This article draws on innovative grounded theory research using qualitative, multi‐generational family interviews with twenty lesbian‐parented families living in Victoria, Australia. The intersection between the public and the private in lesbian family life has been seriously neglected by family researchers, and in particular the perspectives of family members other than the lesbian parents themselves. This article addresses the question of ‘How members of lesbian‐parented families define and describe their family’, and the results reported here focus on children's and grandparents' views, because they are the voices less well represented in the literature. Children and grandparents straddle both mainstream and marginalized spaces as they negotiate contemporary family life. We examine the interface and tensions between the traditional and the transformative, and the implications of these findings for family therapists are briefly discussed.     

Precompetitive anxiety and self-confidence in athletes with disability

This study examined the precompetition temporal patterning of competitive anxiety components in 42 athletes with disability who participated at the national level and at the national trials for the Paralympic Games in a variety of sports. All subjects completed a modified version of the Competitive State Anxiety Inventory-2 which measures intensity and direction of the competitive anxiety response on three occasions before competition (1 wk., 2 hr., and 20 min.). Analysis suggested that for cognitive and somatic dimensions athletes with disabilities show a similar precompetition anxiety response to athletes without disability. However, there appear to be some differences, particularly in the intensity of self-confidence, as athletes with disability reported a reduction of self-confidence just prior to competition.     

Memory impairment in the weapon focus effect

Two experiments are reported in which postevent source of misinformation was manipulated within weaponpresent and weapon-absent scenarios. Participants viewed slides depicting either a weapon or a newspaper event and then received either incomplete questioning or a narrative. Both postevent sources contained misleading information about a central and peripheral detail concerning either the weapon or the newspaper scenario. With a modified test in Experiment 1, questioning was found to increase misinformation effects concerning the central item, as compared with a narrative, and more misinformation effects were found for the weapon-peripheral than for the newspaper-peripheral item. In Experiment 2, the participants were more likely to claim to have seen contradictory and additive misinformation about the central item in the slides following questioning, and more contradictory and additive misinformation effects occurred for the weapon-peripheral than for the newspaper-peripheral item. The findings are considered in terms of the effects of both postevent and encoding factors on memory.     

Effects of working memory capacity on mental set due to domain knowledge

The present set of studies examines how working memory capacity (WMC) relates to performance on a Remote Associates Task (RAT), originally designed by Mednick as a quantifiable creative problem solving assessment. The source of fixation was manipulated across two sets of RAT items. One set was neutral with no specific fixation embedded in them, while the second set was baseball-misleading, designed so that prior knowledge of baseball would lead to an incorrect solution attempt. WMC scores were positively related to performance on RAT items in all conditions, except one. High baseball knowledge participants' WMC scores did not relate to performance on the baseball-misleading RAT. While in general WMC may lead to better RAT performance, these results suggest that when there is a candidate solution strongly activated by prior knowledge, WMC may actually lead to too much focus on the incorrect solution and exacerbate mental sets.     

Comparison of Single Unit Responses to Tone, Light, and Compound Conditioned Stimuli during Rabbit Classical Eyeblink Conditioning

Unit recordings and lesion studies have implicated the cerebellum as an essential site for the acquisition and maintenance of the conditioned eyeblink response. The current study looked at the neural characteristics of conditioned stimulus (CS) processing in the interpositus nucleus of the cerebellum after training New Zealand white rabbits (Oryctolagus cuniculus) in one of two conditioning paradigms: (a) compound conditioning (CMP), a compound CS consisting of light and tone paired with an air puff unconditioned stimulus (US); or (b) stimulus compounding (ALT), alternating blocks of tone CS and light CS trials paired with the air puff US. Single unit responses were recorded during five sessions after the animals had reached an asymptotic level of responding. Animals were tested for behavioral and neural responses to CS alone trials that included tone alone, light alone, and compound tone-light trials. For the CMP group, the compound CS elicited 80 to 90% conditioned eyeblink responses (CRs), whereas the individual tone and light CSs elicited only 40 to 50% CRs. For the ALT group, all three CSs (tone, light, and compound) elicited very high levels of responding of at least 80% CRs. For the CMP group, there were roughly equal numbers of cells responding to all of the CSs. This includes cells that responded exclusively to one, and only one, of the three stimuli and also those cells that responded to combinations of two or more. Cells from the ALT group were far more likely to respond exclusively to only one of the CSs. Both the behavioral and physiological results suggest that the compound tone-light stimulus was processed as a distinct stimulus, separate from the component tone and light. These results are discussed in the context of multisensory processing.