Deficits on irregular verbal morphology in Italian-speaking Alzheimer's disease patients.

Studies of English have shown that temporal-lobe patients, including those with Alzheimer's disease, are spared at processing real and novel regular inflected forms (e.g., walk-->walked; blick-->blicked), but impaired at real and novel irregular forms (e.

8.5 Mb deletion at distal 5p in a male ascertained for azoospermia.

We report on a 5p- azoospermic male not showing the clinical features diagnostic for the cri-du-chat syndrome but for a breathy, raspy voice. The 5p deletion breakpoint, determined by fluorescent in situ hybridization (FISH) analysis with BAC clones, maps 8.5 Mb far from the short arm telomere in 5p15.

Human cortical rhythms during visual delayed choice reaction time tasks. A high-resolution EEG study on normal aging.

Neuroimaging cognitive study of aging requires simple tasks ensuring a high rate of correct performances even in stressful neurophysiological settings. Here two simple delayed choice reaction time tasks were used to unveil event-related desynchronization (ERD) of theta (4-6 Hz) and alpha (6-12 Hz) electroencephalographic rhythms across normal aging. In the first condition, a cue stimulus (one bit) was memorized along a brief delay period (3.

Human cortical EEG rhythms during long-term episodic memory task. A high-resolution EEG study of the HERA model.

Many recent neuroimaging studies of episodic memory have indicated an asymmetry in prefrontal involvement, with the left prefrontal cortex more involved than the right in encoding, the right more than the left in retrieval (hemispheric encoding and retrieval asymmetry, or HERA model). In this electroencephalographic (EEG) high-resolution study, we studied brain rhythmicity during a visual episodic memory (recognition) task. The theta (4-6 Hz), alpha (6-12 Hz) and gamma (28-48 Hz) oscillations were investigated during a visuospatial long-term episodic memory task including an encoding (ENC) and retrieval (RET) phases.

Human cortical responses during one-bit short-term memory. A high-resolution EEG study on delayed choice reaction time tasks.

Objective: We investigated whether a very simple short-term memory (STM) demand induces a visible change of EEG rhythms over the two hemispheres.

Methods: High-resolution EEG was obtained in young adults during two delayed choice reaction time tasks. In the STM condition, a simple cue stimulus (one bit) was memorized along a brief delay period (3.