Localisation of unilateral nasal stimuli across sensory systems.

The Chemical Senses in Birds

The chemical senses generally fall into three categories: chemesthesis (irritation and pain), olfaction (smell), and gustation (taste). Traditionally, the emphasis in describing responsiveness to chemical stimuli has been placed on taste and smell. The reality is more complex. For example, the sensory afferents for chemesthetic perception are in close proximity with olfactory receptors in the n...

Spatiotemporal integration of tactile patterns along and across fingers

The volar sides of the fingers can be seen as the haptic counterpart to the fovea for visual perception. This study assessed the localisation of individual tactile stimuli and spatiotemporal patterns presented to the volar side of the fingers. Participants performed the localisation task by pointing at the perceived positions with a 3D tracker. Based on the pointing data, perceptual maps were d...

Sneeze related area in the medulla: localisation of the human sneezing centre?

Sneezing is a rarely explored symptom in neurological practice. In the cat, a sneeze evoking centre is located in the medulla. The existence of a sneezing centre has not been confirmed in humans. A case with abnormal sneezing secondary to a strategic infarct in the right latero-medullary region is presented. A 66 year old man suddenly presented paroxysmal sneezing followed by ataxia, right side...

Investigation of spontaneous vasomotor activity. Relation of the sympathetic and somatic nervous systems to the occurrence of slow waves (alpha and beta) of the plethysmogram of the dog's paw.

OF THE 5 different waves described as appearing in the normal plethysmogram of an extremity, the last 3 (alpha, beta, and gamma waves) are grouped together as the slow or third order waves. Their relative frequencies in the human digit are 2 to 14 per minute, 1 to 2 per minute, and 1 to 8 per hour. They were first described by Hewlett and Van Zwaluwenberg (1909) as large vasomotor waves "eviden...

Differential Consequences of Unilateral Nasal Air-Puff Stimulation on Breathing Pattern and Respiratory System Mechanics in Tracheotomized Rats