59 research outputs found

    Distinct longitudinal changes in EEG measures reflecting functional network disruption in ALS cognitive phenotypes

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    Amyotrophic lateral sclerosis (ALS) is characterised primarily by motor system degeneration, with clinical evidence of cognitive and behavioural change in up to 50% of cases. We have shown previously that resting-state EEG captures dysfunction in motor and cognitive networks in ALS. However, the longitudinal development of these dysfunctional patterns, especially in networks linked with cognitive-behavioural functions, remains unclear. Longitudinal studies on non-motor changes in ALS are essential to further develop our understanding of disease progression, improve care and enhance the evaluation of new treatments. To address this gap, we examined 124 ALS individuals with 128-channel resting-state EEG recordings, categorised by cognitive impairment (ALSci, n  = 25), behavioural impairment (ALSbi, n  = 58), or non-impaired (ALSncbi, n  = 53), with 12 participants meeting the criteria for both ALSci and ALSbi. Using linear mixed-effects models, we characterised the general and phenotype-specific longitudinal changes in brain network, and their association with cognitive performance, behaviour changes, fine motor symptoms, and survival. Our findings revealed a significant decline in θ-band spectral power over time in the temporal region along with increased γ l-band power in the fronto-temporal region in the ALS group. ALSncbi participants showed widespread β-band synchrony decrease, while ALSci participants exhibited increased co-modulation correlated with verbal fluency decline. Longitudinal network-level changes were specific of ALS subgroups and correlated with motor, cognitive, and behavioural decline, as well as with survival. Spectral EEG measures can longitudinally track abnormal network patterns, serving as a candidate stratification tool for clinical trials and personalised treatments in ALS

    Effectiveness of an HIV Prevention Program for Women Visiting Their Incarcerated Partners: The HOME Project

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    Having an incarcerated partner presents a unique HIV risk for women, particularly low-income women of color. We developed a population-specific risk reduction intervention for women visiting men in prison that was peer educator-based and included individual and community-level intervention components. Women who were assessed prior to the intervention period had a positive association between the number of unprotected penetrative intercourse (UPI) episodes prior to their partners’ incarceration and the number of UPI episodes following partners’ release from prison. However, this association was negated among women assessed during the intervention. Intervention participants also were more likely to be tested for HIV, to have partners who got tested, and to talk with their partners about significantly more HIV-related topics. Conducting intervention and evaluation activities with women visiting incarcerated men is feasible and is a useful model for reaching more at-risk women

    Distinct Longitudinal Changes in EEG Measures Reflecting Functional Network Disruption in ALS Cognitive Phenotypes

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    Amyotrophic lateral sclerosis (ALS) is characterised primarily by motor system degeneration, with clinical evidence of cognitive and behavioural change in up to 50% of cases. We have shown previously that resting-state EEG captures dysfunction in motor and cognitive networks in ALS. However, the longitudinal development of these dysfunctional patterns, especially in networks linked with cognitive-behavioural functions, remains unclear. Longitudinal studies on non-motor changes in ALS are essential to further develop our understanding of disease progression, improve care and enhance the evaluation of new treatments. To address this gap, we examined 124 ALS individuals with 128-channel resting-state EEG recordings, categorised by cognitive impairment (ALSci, n = 25), behavioural impairment (ALSbi, n = 58), or non-impaired (ALSncbi, n = 53), with 12 participants meeting the criteria for both ALSci and ALSbi. Using linear mixed-effects models, we characterised the general and phenotype-specific longitudinal changes in brain network, and their association with cognitive performance, behaviour changes, fine motor symptoms, and survival. Our findings revealed a significant decline in -band spectral power over time in the temporal region along with increased -band power in the fronto-temporal region in the ALS group. ALSncbi participants showed widespread β-band synchrony decrease, while ALSci participants exhibited increased co-modulation correlated with verbal fluency decline. Longitudinal network-level changes were specific of ALS subgroups and correlated with motor, cognitive, and behavioural decline, as well as with survival. Spectral EEG measures can longitudinally track abnormal network patterns, serving as a candidate stratification tool for clinical trials and personalised treatments in ALS

    Neuropsychological assessment practices in PRECISION-ALS: challenges and opportunities for harmonization

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    Objective: To gather comprehensive insights regarding current neuropsychological assessment practices in PRECISION-ALS, a pan-European research and industry consortium, to propose areas which can be harmonized and facilitate more robust cross-country comparisons. Methods: Representatives from PRECISION-ALS sites were surveyed with a semi-structured interview, gathering information on how people with ALS are assessed for cognitive/behavioral change, including how they are initially screened, classified as impaired/unimpaired, and followed up longitudinally. Assessment practices across PRECISION-ALS sites were summarized using descriptive analysis. Results: Ten of the eleven PRECISION-ALS sites perform cognitive and/or behavioral screening at least once during the course of the disease, using the Edinburgh Cognitive and Behavioral ALS Screen, either for clinical or research purposes. All centers categorize impairment, but differ how it is defined, with some using local norms, and others using other countries’ norms. Most sites account for age and education, but differ in how these factors are considered. Longitudinal protocols vary in terms of the number of assessments, time intervals, and use of alternative versions. Behavioral screening is more consistently implemented, with the ECAS caregiver interview as the standard tool, however there is a lack of clarity in how this data is applied. Many sites supplement cognitive and behavioral screening with additional measures of mood and/or neuropsychiatric symptoms. Conclusions: These findings illustrate areas of commonality and divergence in neuropsychological screening practices. Site-specific variations are likely to confound research involving cross-country data-sharing. PRECISION-ALS, in generating prospective population-based datasets, will provide agreed harmonized protocols for neuropsychological assessment across participating sites

    Trashing and Looting

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    The reporting trajectories of top homicide cases in the media:a case study of The Times.

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    This study describes the reporting trajectories of the 13 cases that received the most coverage in a leading British newspaper, The Times, over a period of 23 years (1977 to 1999 inclusive). We have classified these as ‘mega-cases’. This approach moves beyond merely measuring the coverage of cases to charting how cases can escalate to become ‘moral panics’, move into a shared ‘general knowledge’ of killing or, in some cases, come to occupy iconic status. Some ‘mega’ cases fade from consciousness when viewed over a period of time. In ‘mega-cases’ there is an unexpected ‘primary incident’ that makes the case newsworthy in the first instance. Then the ‘formal process’ helps to manage a homicide within accepted and acceptable boundaries. In broad terms, the media trajectories of these ‘mega-cases’ following the ‘primary incident’ are predictable. However, further unexpected ‘incidents’ unrelated to ‘process’– suicides, attacks by other prisoners, escapes – challenge the predictability of these ‘mega-cases’. The trajectories of homicide cases that begin to link in with wider societal agendas are the most difficult to predict

    A sense of justice Offenders as victims of crime

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    SIGLEAvailable from British Library Document Supply Centre-DSC:q96/33023 / BLDSC - British Library Document Supply CentreGBUnited Kingdo

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    SIGLEAvailable from British Library Document Supply Centre- DSC:q89/26950(Aspirations) / BLDSC - British Library Document Supply CentreGBUnited Kingdo
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