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Journal of Psychoeducational Assessment Dec 2023Cambodian youth face many unique challenges, such as high instances of poverty and intergenerational trauma. Grit, a person-level trait defined as having "perseverance...
BACKGROUND
Cambodian youth face many unique challenges, such as high instances of poverty and intergenerational trauma. Grit, a person-level trait defined as having "perseverance and passion for long-term goals", may be particularly important in helping Cambodian youth to succeed despite the extreme challenges they face. To date, the Original Grit Scale (Grit-O) has not been translated in Khmer or validated for a sample of Cambodian youth.
PURPOSE
This study aimed to assess the reliability and validity of a Khmer translation of the Original Grit Scale (Grit-O) among urban Cambodian youth.
RESEARCH DESIGN
A cross-section survey battery -including Grit-O and other relevant covariates -was administered to Cambodian youth.
STUDY SAMPLE
Data were collected from 580 Cambodian adolescents ( = 15.85 years, = 2.05, 63.7% female).
DATA COLLECTION AND ANALYSIS
Paper and pencil surveys were sent home from school with each participant and returned to the study team the next day. Analyses included calculating Cronbach's alphas, interitem correlations, correlations with relevant covariates and both a confirmatory and exploratory factor analysis.
RESULTS
Cronbach's alphas and interitem correlations indicated that the full scale was not reliable for this sample, and that reliability improved when two items () were excluded. The subscales Consistency of Interests and Perseverance of Effort were more reliable than the full scale. Correlations with relevant covariates indicated that the full scale was moderately valid. Factor analyses suggested that items 6 and 7 did not load well onto either identified factor.
CONCLUSIONS
Investigators measuring grit in a sample of Cambodian youth should consider excluding items 6 and 7 of Grit-O, and assessing the two subscales on their own, rather than treating them as indicators of a single higher-order construct.
PubMed: 38550305
DOI: 10.1177/07342829231187238 -
Frontiers in Behavioral Neuroscience 2024Identifying factors that influence age-related cognitive decline is crucial, given its severe personal and societal impacts. However, studying aging in human or animal...
Identifying factors that influence age-related cognitive decline is crucial, given its severe personal and societal impacts. However, studying aging in human or animal models is challenging due to the significant variability in aging processes among individuals. Additionally, longitudinal and cross-sectional studies often produce differing results. In this context, home-cage-based behavioral analysis over lifespans has emerged as a significant method in recent years. This study aimed to explore how prior experience affects cognitive performance in mice of various age groups (4, 12, and 22 months) using a home-cage-based touchscreen test battery. In this automated system, group-housed, ID-chipped mice primarily obtain their food during task performance throughout the day, motivated by their own initiative, without being subjected to food deprivation. Spatial working memory and attention were evaluated using the trial unique non-matching to location (TUNL) and the five-choice serial reaction time task (5-CSRTT), respectively. The same set of mice learned both of these demanding tasks. While signs of cognitive decline were already apparent in middle-aged mice, older mice exhibited poorer performance in both tasks. Mice at both 12 and 22 months displayed an increase in perseverance and a decrease in the percentage of correct responses in the TUNL test compared to the 4-month-old mice. Furthermore, during the 5-CSRTT, they exhibited higher rates of omissions and premature responses compared to their younger counterparts. Additionally, the correct response rate in 22-month-old mice was lower than that of the 4-month-old ones. However, mice that had undergone cognitive training at 4 months maintained high-performance levels when re-tested at 12 months, showing an increase in correct responses during TUNL testing compared to their untrained controls. In the 5-CSRTT, previously trained mice demonstrated higher correct response rates, fewer omissions, and reduced premature responses compared to naive control mice. Notably, even when assessed on a visual discrimination and behavioral flexibility task at 22 months, experienced mice outperformed naive 4-month-old mice. These findings highlight the advantages of early-life cognitive training and suggest that its benefits extend beyond the cognitive domains primarily targeted during early training. The success of this study was significantly aided by the fully automated home-cage-based testing system, which allows for high throughput with minimal human intervention.
PubMed: 38549621
DOI: 10.3389/fnbeh.2024.1326501 -
Behavioral Sciences (Basel, Switzerland) Feb 2024The study of the relationship between key psychological attributes of learners and their engagement in second language (L2) learning helps to understand the critical...
The study of the relationship between key psychological attributes of learners and their engagement in second language (L2) learning helps to understand the critical personality mechanisms influencing language learning. The present study examined the L2 learning engagement from the perspectives of grit (i.e., consistent efforts and interests devoted to a long-term goal) and affect balance (a notion that takes into account both positive and negative emotions concurrently, assessing and evaluating which side holds more significance or influence). A cohort of English L2 learners ( = 394) participated in an online survey aimed at gauging their levels of grit, affect balance, and engagement in L2 learning. The results indicated that grit and affect balance were significantly correlated with behavioral engagement and affective engagement in L2 learning. However, among the two components of grit, namely consistency of interest, showed no significant relationship with L2 learning engagement, while perseverance of effort was significantly positively correlated with L2 learning engagement. Affect balance played a partially mediating and full mediating role between perseverance of effort and behavioral engagement as well as affective engagement respectively. These findings confirm the crucial role of perseverance of effort in second language learning and reveal the unique role of affect balance in their relationship.
PubMed: 38540487
DOI: 10.3390/bs14030184 -
Scientific Reports Mar 2024The Mars Sample Return mission intends to retrieve a sealed collection of rocks, regolith, and atmosphere sampled from Jezero Crater, Mars, by the NASA Perseverance...
The Mars Sample Return mission intends to retrieve a sealed collection of rocks, regolith, and atmosphere sampled from Jezero Crater, Mars, by the NASA Perseverance rover mission. For all life-related research, it is necessary to evaluate water availability in the samples and on Mars. Within the first Martian year, Perseverance has acquired an estimated total mass of 355 g of rocks and regolith, and 38 μmoles of Martian atmospheric gas. Using in-situ observations acquired by the Perseverance rover, we show that the present-day environmental conditions at Jezero allow for the hydration of sulfates, chlorides, and perchlorates and the occasional formation of frost as well as a diurnal atmospheric-surface water exchange of 0.5-10 g water per m (assuming a well-mixed atmosphere). At night, when the temperature drops below 190 K, the surface water activity can exceed 0.5, the lowest limit for cell reproduction. During the day, when the temperature is above the cell replication limit of 245 K, water activity is less than 0.02. The environmental conditions at the surface of Jezero Crater, where these samples were acquired, are incompatible with the cell replication limits currently known on Earth.
PubMed: 38532041
DOI: 10.1038/s41598-024-57458-4 -
Behavioural Brain Research May 2024This study aims to investigate the relationships between personality traits of impulsivity, using the UPPS-P Impulsive Behaviour Scales shortened version, and prefrontal...
This study aims to investigate the relationships between personality traits of impulsivity, using the UPPS-P Impulsive Behaviour Scales shortened version, and prefrontal cortex (PFC) activity during the IOWA Gambling Task (IGT) in young adult women. The study included a sample of 83 young, healthy females (19.8 ± 1.4 years), who voluntarily took part in the study. Repeated measures analysis during the IGT revealed a significant increase in HbO (all p <.001; η >.31) and a decrease in Hbr (all p <.003; η >.08) in all prefrontal quadrants. This increase in oxygenation occurs primarily during the choice period under ambiguity (r =.23; p =.039). Additionally, there was a significant linear decrease in selecting the decks associated with a high frequency of losses (p <.001), while the favorable deck with low losses showed a linear increase (F = 12.96; p <.001). Notably, discrepancies were found between UPPS-P and IGT impulsivity ratings. The Lack of Perseverance and Lack of Premeditation scales from the UPPS-P were identified as significant predictors of HbO levels, mainly in the two quadrants of the left hemisphere's, lateral (adjusted R =.23; p <.001; f =.34) and rostral (adjusted R =.13; p <.002; f =.17). These findings suggest that young adult women predominantly adopt a punishmentavoidance strategy during IGT, exhibiting increased activation in the left hemisphere, especially during the task's initial phase characterized by ambiguity.
Topics: Humans; Female; Young Adult; Prefrontal Cortex; Impulsive Behavior; Gambling; Neuropsychological Tests; Magnetic Resonance Imaging; Adult; Adolescent; Personality; Choice Behavior
PubMed: 38490266
DOI: 10.1016/j.bbr.2024.114957 -
ENeuro Mar 2024Self-ordered sequencing is an important executive function involving planning and executing a series of steps to achieve goal-directed outcomes. The lateral frontal...
Comparative Roles of the Caudate and Putamen in the Serial Order of Behavior: Effects of Striatal Glutamate Receptor Blockade on Variable versus Fixed Spatial Self-Ordered Sequencing in Marmosets.
Self-ordered sequencing is an important executive function involving planning and executing a series of steps to achieve goal-directed outcomes. The lateral frontal cortex is implicated in this behavior, but downstream striatal outputs remain relatively unexplored. We trained marmosets on a three-stimulus self-ordered spatial sequencing task using a touch-sensitive screen to explore the role of the caudate nucleus and putamen in random and fixed response arrays. By transiently blocking glutamatergic inputs to these regions, using intrastriatal CNQX microinfusions, we demonstrate that the caudate and putamen are both required for, but contribute differently to, flexible and fixed sequencing. CNQX into either the caudate or putamen impaired variable array accuracy, and infusions into both simultaneously elicited greater impairment. We demonstrated that continuous perseverative errors in variable array were caused by putamen infusions, likely due to interference with the putamen's established role in monitoring motor feedback. Caudate infusions, however, did not affect continuous errors, but did cause an upward trend in recurrent perseveration, possibly reflecting interference with the caudate's established role in spatial working memory and goal-directed planning. In contrast to variable array performance, while both caudate and putamen infusions impaired fixed array responding, the combined effects were not additive, suggesting possible competing roles. Infusions into either region individually, but not simultaneously, led to continuous perseveration. Recurrent perseveration in fixed arrays was caused by putamen, but not caudate, infusions. These results are consistent overall with a role of caudate in planning and flexible responding and the putamen in more rigid habitual or automatic responding.
Topics: Animals; Putamen; Callithrix; 6-Cyano-7-nitroquinoxaline-2,3-dione; Corpus Striatum; Caudate Nucleus
PubMed: 38471779
DOI: 10.1523/ENEURO.0541-23.2024 -
Revista Brasileira de Psiquiatria (Sao... Mar 2024To investigate the relationship between impulsivity and early trauma through a network analysis in individuals diagnosed with different substance use disorders (SUD).
OBJECTIVE
To investigate the relationship between impulsivity and early trauma through a network analysis in individuals diagnosed with different substance use disorders (SUD).
METHODS
This cross-sectional study includes a sample of 556 men with SUD (195 with alcohol use, 157 with crack cocaine use and 214 with multiple substance use). The Childhood Trauma Questionnaire was applied to investigate early trauma and the Barratt Impulsiveness Scale to assess impulsive behavior. The connection between trauma and impulsivity was assessed using network analysis through Fused Graphical Lasso algorithm.
RESULTS
No connection was observed between impulsivity and trauma networks in individuals with alcohol use. In cocaine users, networks were linked through the motor domain and sexual abuse nodes. Inversely connections were observed between emotional neglect node and perseverance and not planning nodes. In poly-use, the connection between impulsivity and trauma networks was weak, with cognitive complexity being the node that connects to the trauma network through physical abuse. There were inversely proportional connections between motor domain and emotional neglect nodes, and cognitive instability and physical neglect.
CONCLUSIONS
Our results suggest that the relationship between the type of early (childhood) trauma and the expression of impulsivity could lead to a different substance use profile.
PubMed: 38467463
DOI: 10.47626/1516-4446-2023-3265 -
Gaceta Sanitaria Mar 2024The independent evaluation report on the performance of the National Health System in the face of the COVID crisis is rigorous, well thought out and well executed. It...
The independent evaluation report on the performance of the National Health System in the face of the COVID crisis is rigorous, well thought out and well executed. It has benefited from the participation of numerous experts and institutions. The altruistic effort of the coordinators and hundreds of experts, professionals and citizens is noteworthy, which does not justify the asymmetry between "everything for free" when it comes to shared intelligence, and market prices when it comes to commissioning reports from consultancy firms that are sometimes not worth the cost. The valuable work has suffered from unexplained delays and delayed dissemination that do not bode well for whether there is interest in learning from the pandemic or leaving it behind and forgetting it. Indeed, valuable reports provided by the public administration itself (listed in the report) have still not been made public, despite the request of the coordinators. However, the mere fact that the evaluation has been carried out under the influence and pressure of scientists and professionals should encourage the actions of civil society organisations. Advocacy is needed to ensure that public administrations see collective intelligence as an invaluable resource to be nurtured and stimulated. Regular accountability of executive powers at all levels needs to be pursued vigorously. Many sensible proposals to improve healthcare have been ignored, but we learned that achievements are made with perseverance. It is not an option, it is part of the core business of public health.
PubMed: 38458042
DOI: 10.1016/j.gaceta.2024.102375 -
Acta Medica Portuguesa May 2024The intermediate stages of dementia are relatively under-researched, including in Portugal. The Actifcare (ACcess to TImely Formal Care) EU-JPND project studied people... (Observational Study)
Observational Study
INTRODUCTION
The intermediate stages of dementia are relatively under-researched, including in Portugal. The Actifcare (ACcess to TImely Formal Care) EU-JPND project studied people with mild-moderate dementia, namely their needs, access to and use of community services (e.g., day centers, home support). In our baseline assessment of the Portuguese Actifcare cohort, the unmet needs of some participants would call for formal support, which was not always accessible or used. We now report the main results of the 12-month follow-up, analyzing changes in needs, service (non)use, quality of life and related variables.
METHODS
This was a longitudinal, observational study using a convenience sample of 54 dyads of people with dementia and their family carers. Our main outcomes were the Camberwell Assessment of Need for the Elderly (CANE) and the Resources Utilization in Dementia. Clinical-functional, quality of life, psychological distress and caregiving-related assessments were also used.
RESULTS
At follow-up, the cognitive and functional status of people with dementia declined (p < 0.001), and their neuropsychiatric symptoms increased (p = 0.033). Considering CANE interviewers' ratings, the total needs of people with dementia increased at follow-up (p < 0.001) but not the unmet needs. Quality of life was overall stable. The use of formal care did not increase significantly, but informal care did in some domains. Carers' depressive symptoms increased (p = 0.030) and perseverance time decreased (p = 0.045). However, carers' psychological distress unmet needs were lower (p = 0.007), and their stress and quality of life remained stable.
CONCLUSION
People with dementia displayed complex biopsychosocial unmet needs. Their cognitive-functional decline over one year was not accompanied by a corresponding increase in any pattern of unmet need, nor of service use. Reliance on informal care (namely supervision) may have contributed to this. Caregiving-related outcomes evolved according to different trends, although stability was almost the rule. Primary carers were even more present at follow-up, without an apparently heavier toll on their own needs, burden, and quality of life. Overall, this longitudinal study comprehensively assessed Portuguese community-dwelling people with dementia. Despite the lack of generalizability, participants' needs remained overall stable and partly unmet over one year. Longer follow-up periods are needed to understand such complex processes.
Topics: Humans; Quality of Life; Dementia; Female; Male; Portugal; Aged; Longitudinal Studies; Caregivers; Follow-Up Studies; Aged, 80 and over; Time Factors; Health Services Needs and Demand; Middle Aged; Needs Assessment
PubMed: 38457746
DOI: 10.20344/amp.20427 -
Strahlentherapie Und Onkologie : Organ... Mar 2024Complex visual hallucinations are rarely seen in neurooncology. They are commonly observed alongside psychotic symptoms in schizophrenia or dementia, in Parkinson's or...
PURPOSE
Complex visual hallucinations are rarely seen in neurooncology. They are commonly observed alongside psychotic symptoms in schizophrenia or dementia, in Parkinson's or Lewy-body disease, after opioid medications or anesthesia, and, in particular, they appear with visual impairments.
METHODS
Here we report two normal-sighted and mentally healthy patients with unusual visual hallucinations after the resection and irradiation of brain metastases, the main features of which were persistent colorful and meaningful images with hallucinatory perseveration.
RESULTS
These cases demonstrate the occurrence of complex visual hallucinations after resection of visual cortices as an effect of deafferentation, so-called visual release hallucinations or phantom images, similar to phantom pain after amputation of a limb.
CONCLUSION
This case serves to heighten awareness in the radiooncology practitioner of the occurrence of visual release hallucinations (Charles Bonnet syndrome) related to multidisciplinary treatment of brain metastases.
PubMed: 38453698
DOI: 10.1007/s00066-024-02213-x