Application of Parallel Factor Analysis (PARAFAC) to electrophysiological data.

The identification of important features in multi-electrode recordings requires the decomposition of data in order to disclose relevant features and to offer a clear graphical representation. This can be a demanding task. Parallel Factor Analysis (PARAFAC; Hitchcock, 1927; Carrol and Chang, 1970; Harshman, 1970) is a method to decompose multi-dimensional arrays in order to focus on the features of interest, and provides a distinct illustration of the results.

Diabetes and cognitive function in a population-based study of elderly women and men.

Objectives: The aim of this study was to examine the association between diabetes and cognitive function in the elderly.

Research Design And Methods: From January to December 2003, all 740 participants, aged 70 years or more, of an ongoing population-based cohort study were eligible for a telephone interview on cognitive function. Cognitive function was assessed using validated instruments, including the Telephone Interview of Cognitive Status (TICS) and the East Boston Memory Test (EBMT).

Personality, lifestyle, and risk of cardiovascular disease and cancer: follow-up of population based cohort.

Objective: To study the relation between measures of personality and risk of cardiovascular disease and cancer in a large cohort.

Design: Follow-up of population based cohort.

Setting: Heidelberg, Germany.

Assessment of cognitive status in the elderly using telephone interviews.

Objective: To examine the feasibility to assess cognitive status in the elderly using telephone interviews.

Research Design And Methods: From January to December 2003, 740 participants of the ongoing Heidelberg longitudinal study (HeiDE) aged 70 years or more were eligible for a telephone interview on cognitive status. Validated instruments to assess cognitive status, including the Telephone Interview of Cognitive Status (TICS) and the East Boston Memory Test (EBMT, immediate and delayed recall), the Verbal Fluency Test, the HAWIE-"Vocabulary Test" and the HAWIE-"General Knowledge", a prospective memory test, and a digit span backwards-test were translated into German, if applicable.