Objective(s): Stress alters sensory and cognitive function in humans and animals. Angiotensin (AT) receptors have demonstrated well-established interactions in sets of physiological phenomena. AT1 receptors can play a part in stress-induced activation of hypothalamic-pituitary-adrenal (HPA) axis; besides angiotensinergic neurotransmission plays a pivotal role in stress-evoked physiological resp...

This study was undertaken to compare the excitability changes of sensory and motor axons during hyperventilation and ischaemia, and to determine why ectopic impulse activity develops more readily during hyperventilation, and in sensory fibres. During hyperventilation for 20 min, all six subjects reported paraesthesiae in the hand and face, and four out of the six developed muscle twitching and ...

Objectives: Postural control deficit is one of the most important problems in children with spastic cerebral palsy (CP). The purpose of this paper is to review the reactive postural control in spastic children with CP. Methods: Researches on development of reactive postural control in typically developing (TD) children and children with Cerebral Palsy (CP) were analyzed. Results: The resu...

Threshold sensory stimulation of the skin has become the object of increasingly intensive investigation since the classic report by Hardy, Wolff and Goodell' on the pain threshold of thermal radiation. The literature on the subject is rapidly becoming voluminous with interesting ramifications appearing in many fields of medicine. More recently Cormia3 reported on the itch threshold in experimen...

To make fast and accurate behavioral choices, we need to integrate noisy sensory input, take prior knowledge into account, and adjust our decision criteria. It was shown previously that in two-alternative-forced-choice tasks, optimal decision making can be formalized in the framework of a sequential probability ratio test and is then equivalent to a diffusion model. However, this analogy hides ...

Quantitative sensory testing was used to assess the prevalence of sensory dysfunction in patients with cancer, carefully screened for other risk factors for neuropathy. Large fibre type sensory function was evaluated using vibration threshold (VT) determinations while small fibre type sensory function was assessed by thermal threshold (TT) determinations. Mean VT and TT were significantly eleva...

Numerous methods of studying the sensibility of the skin have been reported. Martin (1) described the threshold of faradic break shocks; Ollendorf (2) used hair strokes, pin pricks, heat and pressure with a probe in normal and abnormal skin to determine differences in sensation; Mayr (3) utilized the pressure of a water manometer on normal and syphilitic skin; Hardy and Wolff (4) introduced the...