The development of the use of long-term knowledge to assist short-term recall

The influence of item familiarity upon memory span was examined in adults and children aged 5, 7, and 10 years by comparing the recall of words and nonwords. Using a probed recall task, both item recall and position recall were tested. The effect of familiarity upon item recall was found to develop with age, from no effects in the 5-year-olds to significant effects in the older children and adults. By contrast, no effect of familiarity was found at any age when recall of position was required. Dissociations between word length effects and familiarity effects supported the conclusion that the familiarity effect does not result from rehearsal. Several explanations for the source of the familiarity effect were examined, and the familiarity effect was attributed to a strategic redintegration or reconstruction process, which is necessary for item recall but not for position recall.     

“Where Does it Come from?” Experiences Among Survivors and Parents of Children with Retinoblastoma in Kenya

Genetic testing and counseling have become integral to the timely control of heritable cancers, like the childhood eye cancer retinoblastoma. This study aimed to determine attitudes, knowledge and experiences related to retinoblastoma genetics, among survivors and parents of children with retinoblastoma in Kenya. This qualitative study used focus groups as the primary data collection method, coupled with a brief demographic questionnaire. Study settings were Kenyatta National Hospital and Presbyterian Church of East Africa Kikuyu Hospital. Thematic analysis was used to identify key themes. Thirty-one individuals participated in five focus groups. Two main concepts emerged: (1) the origins of retinoblastoma are unclear, and (2) retinoblastoma is associated with significant challenges. The lack of clarity surrounding the origins of retinoblastoma was linked to limited knowledge of retinoblastoma genetics, and limited genetic counseling delivery and uptake. The challenges associated with retinoblastoma were discussed in terms of the impact of the diagnosis on individuals and families, and unmet healthcare needs related to the diagnosis. Next steps will incorporate these findings to develop evidence-informed and accessible cancer genetic services in Kenya.     

Home-Based vs. Clinic-Based Parent–Child Interaction Therapy: Comparative Effectiveness in the Context of Dissemination and Implementation

Disruptive child behavior disorders remain a major public health issue despite the proliferation of several strong Evidence-Based Practices (EBPs) for these children and their families. This may stem from barriers to treatment facing many families in need, particularly families with low resources. Home-based treatment may be best suited for this population; however, EBPs are not always available or tested as home-based interventions. The current study compares an intensive home-based adaptation of Parent Child Interaction Therapy (PCIT) to the standard clinic-based model in the context of a statewide implementation. As part of the statewide implementation, therapists entered archival data into an online system. Data was gathered for 314 families receiving PCIT, with 181 children in clinic-based PCIT and 133 in intensive home-based PCIT. Consistent with other trials of PCIT, results of the current study indicate that both versions of the therapy were effective in reducing child-behavior problems and increasing parenting skills; however, there were marked differences in attrition. Intensive home-based participants were twice as likely to complete treatment (64.66%) compared to clinic-based participants (33.15%) despite facing more adversity. These results underscore the importance of scientifically-sound adaptations of EBPs, as well as the role of comparative effectiveness studies as a critical tool in the integrative model of intervention science.     

Self-knowledge,belief, ability (and agency?)

Matthew Boyle [(2011). “Transparent Self-Knowledge.” Aristotelian Society Supplementary Volume 85 (1): 223–241. doi:10.1111/j.1467-8349.2011.00204.x] has defended an account of doxastic self-knowledge which he calls “Reflectivism”. I distinguish two claims within Reflectivism: (A) that believing that p and knowing oneself to believe that p are not two distinct cognitive states, but two aspects of the same cognitive state, and (B) that this is because we are in some sense agents in relation to our beliefs. I find claim (A) compelling, but argue that its tenability depends on how we view the metaphysics of knowledge, something Boyle does not consider. I argue that in the context of the standard account of knowledge as a kind of true belief – what I call the Belief Account of knowledge – the claim faces serious problems, and that these simply disappear if we instead adopt an Ability Account of knowledge, along the lines of that defended by John Hyman [(1999). “How knowledge Works.” The Philosophical Quarterly 49 (197): 433–451; John Hyman (2015). Action, Knowledge, and the Will. Oxford: Oxford University Press]. I find claim (B) less compelling, and a secondary aim of the paper is to suggest that once we reject the Belief Account of knowledge, and move over to an Ability Account, there is no explanatory role for (B) left to play.     

Children's drawings of significant figures for a peer or an adult audience

The present study assessed if children would present different information in their drawings of emotion eliciting stimuli when they believed that an adult or a child audience would view their drawings. Seventy‐five 6‐year‐olds (44 boys and 31 girls) were allocated to three groups: the reference group, the child audience group and the adult audience group. All children completed a drawing session where they first drew a neutral uncharacterised figure, followed by drawings of a sad and a happy figure in counterbalanced order. Findings demonstrated that children did consider who would be viewing their drawings when communicating emotional affect and included different features within their drawings. In particular, almost all happy drawings included a smile, but only those drawings where an audience was specified included a wave, and only the adult drawings included flower giving. Within the sad drawings tears and frowns were drawn regardless of audience type, whereas stomping was more likely to be portrayed in drawings with a child audience and thumbs down were more likely to be portrayed in drawings with adult audiences. The findings are discussed in terms of the need to further examine communicative aspects of children's drawings. Copyright © 2011 John Wiley & Sons, Ltd.     

The psychometrics of photographic cropping: the influence of colour, meaning, and expertise

Cropping is the central act of photography, the viewfinder of a camera being used to crop a portion of the visual world which is then surrounded with a frame. Six studies are described which show that the act of cropping is carried out reliably and confidently by both expert and non-expert participants. Two studies confirm that some croppers are better croppers than others, their cropped images being preferred aesthetically over the croppings of less-good croppers. Colour had little impact on cropping decisions, whereas thresholded monochrome images ('Mooney images') dramatically altered crop positions. That suggests that cropping can be driven top-down, by the meaning of objects in photographs, but the fact that the Mooneyised images are still cropped consistently, suggests that image structure, perhaps in the form of low-level image properties, may still be important. Experts crop pictures differently from non-experts, and they take longer, viewing a wider range of possible crops, pausing longer to assess crops, and using more formal terminology when reflecting on their cropping decisions. Experts' crops are not, however, preferred more, either by non-expert viewers or by expert viewers. Cropping, it is suggested, is an ideal paradigm for experimental aesthetics, allowing precise experimental control with Fechner's Method of Production, a technique which normally is not easy to use.     

Executive functions and extraversion

Executive functions and extraversion have been linked to similar neurological substrates. Participants were tested on a variety of tasks that assessed performance on three components of executive functioning (i.e., shifting, updating, and inhibition) and two measures of extraversion (Eysenck Personality Questionnaire-Revised and Carver and White’s BIS/BAS scales). More extraverted participants showed different patterns of executive function performance than the more introverted participants. Extraverts performed best on more difficult tasks and on updating tasks. Conversely, introverts performed best on set shifting tasks. These results suggest that executive functioning strengths differ based on degree of extraversion.     

What can What-When-Where (WWW) binding tasks tell us about young children's episodic foresight? Theory and two experiments

We analyze theoretical differences between conceptualist and minimalist approaches to episodic processing in young children. The ‘episodic-like’ minimalism of Clayton and Dickinson (1998) is a species of the latter. We asked whether an ‘episodic-like’ task (structurally similar to ones used by Clayton and Dickinson) in which participants had to bind What (kind of object), to Where (location of object) to When (temporal duration from present) - WWW-binding - would produce the often-found developmental trajectory in episodic foresight performance of failure at 3 years, transitional performance at 4 and success at 5. Although failure at 3 years was reproduced, the performance of 4 and 5 year olds was likely affected by the executive challenge of inhibiting reference to the currently preferable item.     

What we say and what we do: the relationship between real and hypothetical moral choices

Moral ideals are strongly ingrained within society and individuals alike, but actual moral choices are profoundly influenced by tangible rewards and consequences. Across two studies we show that real moral decisions can dramatically contradict moral choices made in hypothetical scenarios (Study 1). However, by systematically enhancing the contextual information available to subjects when addressing a hypothetical moral problem-thereby reducing the opportunity for mental simulation-we were able to incrementally bring subjects' responses in line with their moral behaviour in real situations (Study 2). These results imply that previous work relying mainly on decontextualized hypothetical scenarios may not accurately reflect moral decisions in everyday life. The findings also shed light on contextual factors that can alter how moral decisions are made, such as the salience of a personal gain.