Diagnostic lumbar puncture was performed on 76 neurological inpatients. They were randomly allocated to one of four bed rest positions for four hours following the procedure (supine and horizontal, prone and horizontal, supine with head-down tilt and prone with head-down tilt) after which they were allowed to get up. There was no substantial or significant difference in the incidence of headach...

In this paper we approach the problem of head pose estimation by combining Multi-scale Gaussian Derivatives with Support Vector Machines. We evaluate the approach on the Pointing04 and CMU-PIE data sets and to estimate the pan and tilt of the head from facial images. We achieved a mean absolute error of 6.9 degrees for pan and 8.0 degrees for tilt on the Pointing04 data set.

Recent work suggests that temporal aspects of facial displays influence the perception of the perceived authenticity of a smile. In the present research, the impact of temporal aspects of smiles on person and expression perception was explored in combination with head-tilt and gender. One hundred participants were shown different types of smiles (slow versus fast onset) in combination with thre...

Fifteen patients aged 10 to 18 years with syncope of unknown origin, and 10 healthy control children aged 11 to 18 years, were evaluated by head-up tilt to 60 degrees for 60 minutes. Six patients (43%) reproduced symptoms of syncope during the examination. Four had a typical vasovagal reaction; two had marked hyperventilation. None of the children in the control group had syncope. The head-up t...

The hypothesis that cerebrovascular autoregulation was not impaired during head-up tilt (HUT) that followed brief exposures to varying degrees of prior head-down tilt (HDT) was tested in 10 healthy young men and women. Cerebral mean flow velocity (MFV) and cardiovascular responses were measured in transitions to a 60-s period of 75° HUT that followed supine rest (control) or 15 s HDT at -10°, -...

IGARASHI, K. Microvibration on the Scalp as a Diagnostic Aid in Orthostatic Dysregulation. Tohoku J. exp. Med., 1971, 105 (1), 11-17 The microvibration (MV) on the scalp of the parietal region in 23 healthy subjects and 16 patients with orthostatic dysregulation (O.D.) ranging from 9 to 11 years of age was recorded at rest in the supine position on the horizontally flat table and in the 20° hea...

The parietoinsular vestibular cortex (PIVC) is a large area in the lateral sulcus with neurons that respond to vestibular stimulation. Here we compare the properties of PIVC cells with those of neurons in brain stem, cerebellum, and thalamus. Most PIVC cells modulated during both translational and rotational head motion. Translation acceleration gains showed a modest decrease as stimulus freque...