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Little is known about the effect of obesity on brain structures and cognition in healthy older adults. This study examined the association between body mass index (BMI), regional volume differences in gray and white matter measured by magnetic resonance imaging (MRI), and cognitive functioning in older females. Participants included 95 community-dwelling(More)
Future scenarios for the oceans project combined developments of CO 2 accumulation and global warming and their impact on marine ecosystems. The synergistic impact of both factors was addressed by studying the effect of elevated CO 2 concentrations on thermal tolerance of the cold-eurythermal spider crab Hyas araneus from the population around Helgoland.(More)
While an extensive literature is now available on age-related differences in white matter integrity measured by diffusion MRI, relatively little is known about the relationships between diffusion and cognitive functions in older adults. Even less is known about whether these relationships are influenced by the apolipoprotein (APOE) ε4 allele, despite(More)
A story comprehension task was specifically developed for the clinical diagnosis of text comprehension deficits. The performance of 49 healthy control participants on qualitatively different Yes/No questions confirmed that both salience and explicitness of information had an impact on question difficulty. An unselected group of brain damaged patients (n =(More)
T here has been an enormous development in the field of electronic memory aids, such as mobile phones, organizers, or combinations of both. Nevertheless, these devices have hardly been useful in the neuropsychological therapy of memory-impaired patients so far. The model of prospective remembering by Ellis (1996) is used as theoretical background in order(More)
OBJECTIVE To assess whether the pattern of diffusion changes among a cohort of individuals showing BMI-related increases in white matter volume reflects healthy expansion of myelin or damaged white matter. METHODS Diffusion MRI measures (axial, radial, and fractional anisotropy) were obtained from 94 females, aged 52-92. Relationships between BMI and(More)
Functional neuroimaging has revealed that in healthy adults retrieval of personal trait knowledge is associated with increased activation in the medial prefrontal cortex (mPFC). Separately, neuropsychology has shown that the self-referential nature of memory can be disrupted in individuals with mPFC lesions. However, it remains unclear whether damage to the(More)
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