Recent findings in the neurophysiology of language production have provided a detailed description of the brain network underlying this behavior, as well as some indications about the timing of operations. Despite their invaluable utility, these data generally suffer from limitations either in terms of temporal resolution, or in terms of spatial localization. In addition, studying the neural ba...

The pressure within the abdominal cavity is normally little more than atmospheric pressure. However, even small increases in intra-abdominal pressure can have adverse effects on renal function, cardiac output, hepatic blood flow, respiratory mechanics, splanchnic perfusion and intracranial pressure. Although intra-abdominal pressure can be measured directly, this is invasive and bedside measure...

Rat cystometry is increasingly being used in research on overactive bladder and is a research tool for investigating bladder functions during the storage and voiding phases. Measurement of the pressure in the bladder is an essential part of cystometry, although that pressure is the sum of both detrusor and intra-abdominal pressures. In anesthetic cystometry, measurement of the intra-abdominal p...

Brain near-infrared spectroscopy (NIRS) is an emerging neurophysiological tool that combines straightforward activity localization with cost-economy, portability and patient compatibility. NIRS is proving its empirical utility across specific cognitive and emotional paradigms. However, a potential limitation is that it is not only sensitive to haemodynamic changes taking place in the cortex, an...

Positional cranial deformities are a group of disorders that result in asymmetrical cranial vault due to the application of prolonged exterior pressure on the skull. These can be classified as deformational plagiocephaly, deformational brachycephaly and deformational scaphocephaly, in order of frequency. Clinical awareness of the condition has increased due to its increased incidence resulting ...

Idiopathic Intracranial Hypertension (IIH) is a disorder characterized by raised intracranial pressure without evidence of another cause such as infection, space occupying lesion or vascular abnormality. The incidence of IIH seems to be increasing amongst adolescent children, but the pathogenesis of the disease still remains unclear. We report a case of visual loss with raised intracranial pres...

The cranial vault is composed of four fundamental components: arterial blood, venous blood, cerebrospinal fluid (CSF), and brain parenchyma. Intracranial pressure (ICP) represents the pressure within the brain parenchyma and cerebrospinal fluid (CSF). The environment within the cranial vault is unique compared to other organ systems; it is enclosed within a rigid skull and thus small volumetric...

The unidirectional flow through the gas-exchanging bronchi of bird lungs is known to be effected by (1) the structure of the major bronchi and (2) a pressure difference between the cranial and caudal air sacs. To study the effects of bronchial structure, simple physical models of bird lungs were constructed. They suggested that, to achieve unidirectional flow, air in the caudal portion of the p...

EXTENSIVE accounts of the blood vessels of the orbit are to be found in various text-books of ophthalmology and anatomy, but there are few systematic descriptions of the anomalies. The various authors differ very little from one another in their descriptions, and deal almost exclusively with the socalled normal pattern of the ophthalmic artery. It was therefore considered desirable to study the...

BACKGROUND ITP can give rise to bleeding episodes in different parts of the body including the central nervous system with various systemic manifestations. CASE An eight-year old female child, diagnosed as a case of chronic ITP for last two years, developed intense headache and vomiting for a few days before admission. This was associated with right sided mid dilated pupil with brisk reaction...