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The influence of foreperiod duration on the preparation and control of sequential aiming movements
Get PDFReaction time (RT) and movement times (MTs) to the first target are typically longer for two-target sequential movements compared to one-target movements. While this one-target advantage has been shown to be dependent on the availability of advance information about the numbers of targets, there has been no systematic investigation of how foreperiod duration (i.e., interval between presentation of the target(s) and stimulus) influences the planning and execution of sequential movements. Two experiments were performed to examine how the one-target advantage is influenced by the availability and timing of advance target information. In Experiment 1, participants performed one- and two-target movements in two separate blocks. In Experiment 2, target conditions were randomised from trial to trial. The interval between target(s) appearing and stimulus tone (i.e., foreperiod) was varied randomly (0, 500, 1,000, 1,500, and 2,000 ms). The results of Experiment 1 revealed that while the one-target advantage in RT was not influenced by foreperiod duration, the one-target advantage in MT increased as foreperiod duration increased. The variability of endpoints at the first target was greater in the two- compared to one-target condition. In Experiment 2, the one-target advantage in both RT and MT increased as the length of the foreperiod increased. However, there was no difference in limb trajectory variability between target conditions. The implication of these findings for theories of motor planning and execution of multiple segment movements is discussed
Psychological variables and lifestyle in children with type1 diabetes and their parents: A systematic review
Get PDFDiabetes may impact physical and psychosocial well-being; the diabetes incidence has seen a drastic increase globally. There is also a rise in poor mental health and well-being in children with and without chronic illness; problems are being seen at a younger age. The objective of this review was to understand the determinants of these problems in a family context. We conducted a systematic review to investigate what lifestyle and psychological factors influence children with Type 1 diabetes and their parents. A focused literature search was performed using a combination of keywords that covered the relevant terminology for diabetes, target population, and associated emotional distress, using electronic bibliographic databases containing publications until May 2022. Methodological quality was assessed using the Quality Assessment Tools for Quantitative Studies. Twenty articles met the inclusion criteria. Quality scores were weak because of a lack of comparison groups, information about the type of therapy, or adequate sample sizes. Many of the studies included a wide age range in their sample. The majority of the studies reported that parents and their children showed depression symptoms, fear of hypoglycaemia, and higher parenting stress. We conclude that sufficiently powered studies employing appropriate control groups and measures are needed to elucidate the psychological variables associated with Type1 diabetes in children and the effects on parents, especially considering primary-age children who are increasingly reported to suffer from poor mental health, and its implications. This should help to introduce better targeted interventions and improve behavioural outcomes
Exploring preferences of older adults for dental services: A pilot multi-national discrete choice experiment
Get PDFAbstractObjectivesTo pilot an exploration of older adults' future preferences using discrete choice experiments to understand who should provide dental examinations and treatment, where these services should be provided, and participants' willingness to pay and willingness to travel.BackgroundThe proportion of older adults in the general population is increasing and is recognised as a pressing public health challenge.Materials and MethodsOlder people aged 65 years and over were recruited into this study from the UK, Switzerland and Greece. Drawing on earlier stakeholder engagement, a set of choice experiments are developed to explore the future preferences of older people for dental examinations and dental treatment, as they anticipated losing their independence. These were presented to the participants using a range of platforms, because of the COVID pandemic. Data were analysed in STATA using a random-effects logit model.ResultsTwo hundred and forty-six participants (median age 70 years) completed the pilot study. There was a strong preference across all countries for a dentist to undertake a dental examination (Greece: β = 0.944, Switzerland: β = 0.260, UK β = 0.791), rather than a medical doctor (Greece: β = −0.556, Switzerland: β = −0.4690, UK: β = −0.468). Participants in Switzerland and the UK preferred these examinations to be undertaken in a dental practice (Switzerland: β = 0.220, UK: β = 0.580) while participants in Greece preferred the dental examination to be undertaken in their homes (β = 1.172). Greek participants preferred dental treatment to be undertaken by a specialist (β = 0.365) in their home (β = 0.862), while participants from the UK and Switzerland preferred to avoid any dental treatment at home (Switzerland: β = −0.387; UK: β = −0.444). Willingness to pay analyses highlighted that participants in Switzerland and the UK were willing to pay more to ensure the continuity of future service provision at a family dental practice (Switzerland: β = 0.454, UK: β = 0.695).ConclusionDiscrete choice experiments are valuable for exploring older people's preferences for dental service provision in different countries. Future larger studies should be conducted to further explore the potential of this approach, given the pressing need to design services that are fit for purpose for older people. Continuity of dental service provision is considered as important by most older people, as they anticipate losing their dependence
Exploring the intergenerational continuity of ACEs amongst a sample of Welsh male prisoners: A retrospective cross-sectional study
Get PDFBackgroundThe relationship between parent and child adverse childhood experience (ACE) exposure remains underexplored, particularly within justice-involved samples.ObjectiveThis objective of the study was to examine the intergenerational continuity of ACEs within a UK prison population.Participants294 males aged 18–69 years in a Welsh prison, with father reported data for 671 children they had fathered.MethodsA face-to-face ACE questionnaire measured exposure to 10 ACE types. For each child they had fathered participants were asked to report their child's gender, age and their exposure before the age of 18 to the same ACE types, except having a household member incarcerated.FindingsPaternal ACE exposure was found to increase the risk of child ACE exposure, both to multiple ACEs and individual ACE types. Compared to children of fathers with no ACEs, those of fathers with 4+ were almost three times more likely to have been exposed to 2–3 ACEs and six times more likely to be exposed to 4+ ACEs. The risk of a child residing in a household where mental illness was present was 7.4 times higher where their father had 4+ ACEs.ConclusionFindings highlight the need for prevention interventions to break the intergenerational continuity of ACEs. Further research is needed to explore what protects against the intergenerational continuity of ACEs. Criminal justice systems and wider services need to ensure that they support those incarcerated alongside their families who are at high risk of ACEs and consequently poorer education, health and criminal justice outcomes
Moderately thermostable GH1 β-glucosidases from hyperacidophilic archaeon Cuniculiplasma divulgatum S5
Get PDFFamily GH1 glycosyl hydrolases are ubiquitous in prokaryotes and eukaryotes and are utilised in numerous industrial applications, including bioconversion of lignocelluloses. In this study, hyperacidophilic archaeon Cuniculiplasma divulgatum (S5T=JCM 30642T) was explored as a source of novel carbohydrate-active enzymes. The genome of C. divulgatum encodes three GH1 enzyme candidates, from which CIB12 and CIB13 were heterologously expressed and characterised. Phylogenetic analysis of CIB12 and CIB13 clustered them with β-glucosidases from genuinely thermophilic archaea including Thermoplasma acidophilum, Picrophilus torridus, Sulfolobus solfataricus, Pyrococcus furiosus and Thermococcus kodakarensis. Purified enzymes showed maximal activities at pH 4.5–6.0 (CIB12) and 4.5–5.5 (CIB13) with optimal temperatures at 50 °C, suggesting a high-temperature origin of Cuniculiplasma spp. ancestors. Crystal structures of both enzymes revealed a classical (α/β)8 TIM barrel fold with the active site located inside the barrel close to the C-termini of β-strands including the catalytic residues Glu204 and Glu388 (CIB12), and Glu204 and Glu385 (CIB13). Both enzymes preferred cellobiose over lactose as substrates and were classified as cellobiohydrolases. Cellobiose addition increased the biomass yield of Cuniculiplasma cultures growing on peptides by 50%, suggesting that the cellobiohydrolases expand the carbon substrate range and hence environmental fitness of Cuniculiplasma
Oxyplasma meridianum gen. nov., sp. nov., an extremely acidophilic organotrophic member of the order Thermoplasmatales
Get PDFA mesophilic, hyperacidophilic archaeon, strain M1 , was isolated from a rock sample from Vulcano Island, Italy. Cells of this organism were cocci with an average diameter of 1 µm. Some cells possessed filaments. The strain grew in the range of temperatures between 15 and 52 °C and pH 0.5-4.0 with growth optima at 40 °C and pH 1.0. Strain M1 was aerobic and chemoorganotrophic, growing on complex substrates, such as casamino acids, trypticase, tryptone, yeast and beef extracts. No growth at expenses of oxidation of elemental sulphur or reduced sulphur compounds, pyrite, or ferrous sulphate was observed. The core lipids were glycerol dibiphytanyl glycerol tetraether lipids (membrane spanning) with 0 to 4 cyclopentane moieties and archaeol, with trace amounts of hydroxy archaeol. The dominant quinone was MK-7 : 7. The genome size of M1 was 1.67 Mbp with a G+C content of 39.76 mol%, and both characteristics were well within the common range for . The phylogenetic analysis based on 16S rRNA gene sequence placed the strain M1 within the order with sequence identities of 90.9, 90.3 and 90.5% to the closest SSU rRNA gene sequences from organisms with validly published names, , and , respectively. Based on the results of our genomic, phylogenetic, physiological and chemotaxonomic studies, we propose that strain M1 (=DSM 116605 =JCM 36570 ) represents a new genus and species, gen. nov., sp. nov., within the order
Speaking to a metronome reduces kinematic variability in typical speakers and people who stutter.
Get PDFSeveral studies indicate that people who stutter show greater variability in speech movements than people who do not stutter, even when the speech produced is perceptibly fluent. Speaking to the beat of a metronome reliably increases fluency in people who stutter, regardless of the severity of stuttering. Here, we aimed to test whether metronome-timed speech reduces articulatory variability. We analysed vocal tract MRI data from 24 people who stutter and 16 controls. Participants repeated sentences with and without a metronome. Midsagittal images of the vocal tract from lips to larynx were reconstructed at 33.3 frames per second. Any utterances containing dysfluencies or non-speech movements (e.g. swallowing) were excluded. For each participant, we measured the variability of movements (coefficient of variation) from the alveolar, palatal and velar regions of the vocal tract. People who stutter had more variability than control speakers when speaking without a metronome, which was then reduced to the same level as controls when speaking with the metronome. The velar region contained more variability than the alveolar and palatal regions, which were similar. These results demonstrate that kinematic variability during perceptibly fluent speech is increased in people who stutter compared with controls when repeating naturalistic sentences without any alteration or disruption to the speech. This extends our previous findings of greater variability in the movements of people who stutter when producing perceptibly fluent nonwords compared with controls. These results also show, that in addition to increasing fluency in people who stutter, metronome-timed speech also reduces articulatory variability to the same level as that seen in control speakers. [Abstract copyright: Copyright: © 2024 Wiltshire et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
The experiences of minority language users in health and social care research: A systematic review.
Get PDFBackgroundThe planning and management of health policy is directly linked to evidence-based research. To obtain the most rigorous results in research it is important to have a representative sample. However, ethnic minorities are often not accounted for in research. Migration, equality, and diversity issues are important priorities which need to be considered by researchers. The aim of this systematic review (SR) is to explore the literature examining the experiences of minority language users in Health and Social Care Research (HSCR).MethodA SR of the literature was conducted. SPIDER framework and Cochrane principles were utilised to conduct the review. Five databases were searched, yielding 5311 papers initially. A SR protocol was developed and published in PROSPERO: https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42020225114analysis.ResultsFollowing the title and abstract review by two reviewers, 74 papers were included, and a narrative account was provided. Six themes were identified: 1. Disparities in healthcare; 2. Maternal health; 3. Mental health; 4. Methodology in health research; 5. Migrant and minority healthcare; 6. Racial and ethnic gaps in healthcare. Results showed that language barriers (including language proficiency) and cultural barriers still exist in terms of recruitment, possibly effecting the validity of the results. Several papers acknowledged language barriers but did not act to reduce them.ConclusionDespite research highlighting cultures over the past 40 years, there is a need for this to be acknowledged and embedded in the research process. We propose that future research should include details of languages spoken so readers can understand the sample composition to be able to interpret the results in the best way, recognising the significance of culture and language. If language is not considered as a significant aspect of research, the findings of the research cannot be rigorous and therefore the validity is compromised
The effect of experimental warming on reproductive performance and parental care in the burying beetle Nicrophorus nepalensis
Get PDFRising temperatures can adversely affect parental care and reproductive performance across a range of taxa. However, the warming impact is contingent upon understanding how temperature affects the spectrum of parental behaviours and their interplay. Here, we assessed how temperature affects parental care and reproductive success in the burying beetle, Nicrophorus nepalensis, which exhibits complex parental care behaviours. We exposed breeding pairs of N. nepalensis, to three temperature regimes (18°C, 20°C and 22°C) and assessed changes in parental care, and the subsequent development and growth of their offspring. Our findings show that 22°C disrupts carcass nest building by the parents and results in smaller clutches. Moreover, no eggs successfully hatched in the 22°C treatment. A milder increase to 20°C did not affect the hatching rate but resulted in smaller broods and lighter offspring, even when considering brood size, suggesting a change in post-hatching care quality. Our research suggests that warming may weakly affect parental care but has strong detrimental effects on offspring performance. These findings highlight the necessity of investigating the effect of ambient temperature across a diversity of traits and behaviours and across a range of life-history stages to fully assess species vulnerability in the face of future climate change
Emotional Labor in Dementia Research
Get PDFThe concept of emotional labor refers to the regulation and management of emotions within the workplace. This labor may involve a dissonance between the emotions that are internally felt and the emotions that can be externally expressed. The concept of emotional labor can be applied to the emotional management that occurs during research often when directly interacting with research participants. These emotions can have a positive role in building rapport and enabling the researcher to understand the participant’s world. But equally, it can lead to emotional strain and potentially have a negative impact on researcher well-being. In this paper, we apply the concept of emotional labor to dementia research. While there has been attention paid to ethical issues in dementia research, this has often focused on the impact on the participant and not the researcher. Within this paper, we first draw on the literature to provide an overview of the role of emotional labor in the research context. Within the literature, we identify nine research scenarios where emotional labor might occur within dementia research. We then present three case studies illuminating our experiences of emotional labor within dementia research. These case studies provide illustrative examples of some of the research scenarios identified in the literature. To synthesize the learning from the literature and our case studies, we propose peer-critiqued recommendations for managing emotional labor in dementia research. We conclude by considering the implications for other health researchers