Head turning sign

Can the ‘Head-Turning Sign’ Be a Clinical Marker of Alzheimer's Disease?

AIMS To investigate the incidence and severity of the 'head-turning sign' (HTS), i.e. turning the head back to the caregiver(s) for help, in patients with various dementias and discuss its clinical specificity in Alzheimer's disease (AD). METHODS WE INVESTIGATED THE INCIDENCE AND SEVERITY OF HTS WHILE ADMINISTERING A SHORT COGNITIVE TEST (THE REVISED HASEGAWA DEMENTIA RATING SCALE: HDSR) in o...

Head Turning-Induced Hypotension in Elderly People

Carotid sinus hypersensitivity has a high prevalence in the elderly and is a possible cause of falls. In carotid sinus hypersensitivity, external triggers cause sudden reductions in blood pressure, leading to dizziness or syncope, resulting in falls. Turning of the head is considered an important example of such an external trigger in everyday life, wherein rotation of the neck is thought to ma...

Vertebral artery dissection after rapid head turning.

Head, Shoulders and Hips Behaviors during Turning

Turning behavior is part of the basic library of motor synergies. It involves a complex interplay between the different body parts. In this study, we investigate the behavior of shoulders, hips and head during walking and turning tasks with various emotional states and different angles. We found that shoulders and hips follow a strong linear relationship during turning with different angles and...

Turning visual search time on its head

Our everyday visual experience frequently involves searching for objects in clutter. Why are some searches easy and others hard? It is generally believed that the time taken to find a target increases as it becomes similar to its surrounding distractors. Here, I show that while this is qualitatively true, the exact relationship is in fact not linear. In a simple search experiment, when subjects...