Long Spine Mooring

In this report we present the specification of the mooring for the long spine model, and a detailed analysis of its static and dynamic characteristics. We describe the experimental investigations of the behaviour of the mooring alone, and coupled to the spine, in a variety of multidirectional seas representative of the full range of North Atlantic conditions. In preliminary experiments some seas caused the spine to sway axially. Adoption of a new mooring plan solved the problem completely

Extinction of cue-evoked drug-seeking relies on degrading hierarchical instrumental expectancies

There has long been need for a behavioural intervention that attenuates cue-evoked drug-seeking, but the optimal method remains obscure. To address this, we report three approaches to extinguish cue-evoked drug-seeking measured in a Pavlovian to instrumental transfer design, in non-treatment seeking adult smokers and alcohol drinkers. The results showed that the ability of a drug stimulus to transfer control over a separately trained drug-seeking response was not affected by the stimulus undergoing Pavlovian extinction training in experiment 1, but was abolished by the stimulus undergoing discriminative extinction training in experiment 2, and was abolished by explicit verbal instructions stating that the stimulus did not signal a more effective response-drug contingency in experiment 3. These data suggest that cue-evoked drug-seeking is mediated by a propositional hierarchical instrumental expectancy that the drug-seeking response is more likely to be rewarded in that stimulus. Methods which degraded this hierarchical expectancy were effective in the laboratory, and so may have therapeutic potential

Cognitive predictors of parent-rated inattention in very preterm children: the role of working memory and processing speed

Background: Inattention is one of the most common neurobehavioural problems following very preterm birth. Attention problems can persist into adulthood and are associated with negative socio-emotional and educational outcomes. This study aimed to determine whether the cognitive processes associated with inattention differ between term-born and very preterm children. Methods: Sixty-five children born very preterm (less 33+0 weeks’ gestation) aged 8-11 years were recruited alongside 48 term-born controls (≥37+0 weeks’ gestation). Both groups included children with a wide spectrum of parent-rated inattention (above average attention to severe inattention) measured as a continuous dimension using the Strengths and Weaknesses of ADHD and Normal-behaviour (SWAN) scale. Children completed tests to assess basic cognitive processes and executive function. A hierarchical multiple regression analysis was implemented to assess which neurocognitive processes explained variance in parent-rated inattention and whether these differed between preterm and term-born children. Results: In both groups, poorer verbal and visuospatial short-term memory, and poorer visuospatial working memory independently explained variance in parent-rated inattention. Slower motor processing speed explained variance in inattention among very preterm children only. Conclusions: The cognitive mechanisms associated with parent-rated inattention were predominantly overlapping between groups, but relationships between motor processing speed and inattention were unique to very preterm children. These associations may reflect risk factors for inattention in term and very preterm children. Future research should assess the efficacy of these cognitive processes as potential targets for intervention

logloRepo-AYEZ

Dataset associated with Retzler & Retzler (2023) https://doi.org/10.1007/s10803-022-05886-

Local-global processing and co-occurrence of anxiety, autistic and obsessive-compulsive traits in a non-clinical sample

Purpose Increased local-to-global interference has been found in those with ASD, AD and OCD, and as such, may represent a transdiagnostic marker. As a first step to investigating this, we aimed to assess the overlap in traits of these disorders in a non-clinical sample, and whether local–global processing relates to the traits of the three conditions. Methods Participants (n = 149) completed questionnaires including the Autism Quotient (AQ), the Obsessive–Compulsive Inventory (OCI-R) and the Zung Self-rating Anxiety Scale (SAS) and an online version of the Navon task. Behavioural metrics of interference and precedence were extracted from the task and correlated with trait scores. Results We found moderate to strong correlations between the total scores for ASD, anxiety and OCD. Most local–global processing indices did not relate to traits. Conclusion The study found evidence for an overlap in autism, anxiety and obsessive–compulsive traits in a non-clinical sample. However, local–global processing, as measured by the Navon task, did not appear to underpin symptomatology in the sample and could not be considered a transdiagnostic marker. Future research should investigate the value of alternate metrics

Eye movement data reveal increased attention to combined health warnings on cigarette packs

Introduction In 2016 the UK introduced standardised pack design regulations, limiting branding and aiming to increase the salience of health warnings. Existing evidence suggests that the effectiveness of pack design in focusing a smoker’s attention toward warnings may depend on how much they smoke. Our study aimed to directly compare attention to branding and warnings between the pre-regulation and post-regulation packs in smokers, and to determine whether this was affected by the amount smoked, to assess the effectiveness of the new policies. Method 47 adult smokers were recruited, including daily and non-daily smokers to ensure a wide range in cigarettes smoked per week. Eye movement data were recorded while images of cigarette packs were displayed sequentially on screen. Each trial presented one of two types of cigarette pack; pre-regulation packs with a text health warning, or post-regulation packs compliant with governmental guidance introduced in 2016, with plain branding and a combined pictorial and text health warning. Eye movement data were compared between packs, covarying the number of cigarettes smoked per week. Results Eye movement analysis revealed that smokers attended more to health warnings and less to branding when looking at post-regulation packs compared with pre-regulation packs. These effects did not relate to number of cigarettes smoked per week. Conclusion Standardised regulations for cigarette packs successfully direct smokers’ attention away from branding, and towards health warnings, with no association with cigarettes smoked per week. This study adds to the growing body of evidence advocating broader uptake of similar packaging regulations