Self-Modulation of Gamma-Band Synchronization through EEG-Neurofeedback Training in the Elderly.

Background: Electroencephalography (EEG) stands as a pivotal non-invasive tool, capturing brain signals with millisecond precision and enabling real-time monitoring of individuals' mental states. Using appropriate biomarkers extracted from these EEG signals and presenting them back in a neurofeedback loop offers a unique avenue for promoting neural compensation mechanisms. This approach empowers individuals to skillfully modulate their brain activity.

Detecting Anosognosia from the Prodromal Stage of Alzheimer's Disease.

Background: Though not originally developed for this purpose, the Healthy Aging Brain Care Monitor (HABC-M) seems a valuable instrument for assessing anosognosia in Alzheimer's disease (AD).

Objectives: Our study aimed at 1) investigating the validity of the HABC-M (31 items), and its cognitive, psychological, and functional subscales, in discriminating AD patients from controls; 2) exploring whether the HABC-M discrepancy scores between the self-reports of patients/controls in these different domains and the respective ratings provided by their caregivers/informants correlate with an online measure of self-awareness; 3) determining whether the caregiver burden level, also derived from the HABC-M, could add additional support for detecting anosognosia.

Methods: The HABC-M was administered to 30 AD patients and 30 healthy controls, and to their caregivers/informants.

Can a failure in the error-monitoring system explain unawareness of memory deficits in Alzheimer's disease?

Unawareness of memory deficits is an early manifestation in patients with Alzheimer's disease (AD), which often delays diagnosis. This intriguing behavior constitutes a form of anosognosia, whose neural mechanisms remain largely unknown. We hypothesized that anosognosia may depend on a critical synaptic failure in the error-monitoring system, which would prevent AD patients from being aware of their own memory impairment.

Sensitive Timing: A Reappraisal of Chronobiology's Foundational Texts.

The origin of experimental chronobiology can be traced to observations made in the 18 and 19 centuries on the sensitive plant , which were described in two seminal reports: Jean-Jacques d'Ortous de Mairan's "" (A ) and Augustin Pyramus de Candolle's "" (). Both report observations of the striking daily closing and opening of leaves in controlled environments. This review presents translations of both texts with the aim of staying as faithful as possible to the original French texts.

The Blursday database as a resource to study subjective temporalities during COVID-19.

The COVID-19 pandemic and associated lockdowns triggered worldwide changes in the daily routines of human experience. The Blursday database provides repeated measures of subjective time and related processes from participants in nine countries tested on 14 questionnaires and 15 behavioural tasks during the COVID-19 pandemic. A total of 2,840 participants completed at least one task, and 439 participants completed all tasks in the first session.