Electrical brain responses to words semantically related versus unrelated to their context were recorded in a coma patient on days 6 (Glasgow Coma Scale, GCS = 6) and 22 (GCS = 9). Significant differences between related and unrelated words (which were completely matched in their physical features) were consistently observed in both examinations. This is the first evidence for semantic stimulus...

We demonstrate that certain combinations of non-rotationally symmetric aberrations (coma and astigmatism) can improve retinal image quality over the condition with the same amount of astigmatism alone. Simulations of the retinal image quality in terms of Strehl Ratio, and measurements of Visual Acuity under controlled aberrations with adaptive optics were performed, varying defocus, astigmatism...

The effects of geometric residual aberrations such as coma B2 and two-fold astigmatism A1 on the contrast in aberration corrected high resolution transmission electron microscopy (HRTEM) images are investigated on single-walled carbon nanotubes (SWNT). The individual aberrations are adjusted and set up manually using an imaging CS-corrector. We demonstrate how coma B2 can be recognized by an ex...

Although diabetes and its treatment have been considered to be the province of physicians, surgery has reaped unexpected advantage from the introduction of insulin. The chief causes of death in diabetes are coma and infection. Now coma need not occur in diabetes, that is to say true diabetic coma with acetonemia and acidosis. There are cases which develop coma from other causes such as uraemia,...

Although a neurological examination is fundamental to the evaluation of comatose patients, it is less reliable in a medically induced coma. A commonly misinterpreted finding in patients in a pentobarbital coma is altered pupillary reactivity secondary to an exaggerated ciliospinal reflex. Recognizing an exaggerated ciliospinal reflex in patients in a pentobarbital coma is important and may prev...