Tabacco and Sensation

[Prevalence of tabacco, alcohol and marijuana consumption among university students].

BACKGROUND University students are especially vulnerable towards substance abuse AIM To describe and compare drug consumption in students of a Chilean university who attended first and fourth year of studies, according to gender and faculty. MATERIAL AND METHODS A representative, stratified and proportional sample of 305 students was randomly chosen by faculty, career, grade and gender duri...

Experiencing Sensation and Perception

Motility and Visceral Sensation

Aims: Dyschesia can be provoked by inappropriate defecation movements. The aim of this prospective study was to demonstrate dysfunction of the anal sphincter and/or the musculus (m.) puborectalis in patients with dyschesia using anorectal endosonography. Methods: Twenty consecutive patients with a medical history of dyschesia and a control group of 20 healthy subjects underwent linear anorectal...

Afterimages and Sensation

According to purists, visual experience can be exhaustively characterised in terms of a subject’s apparent perspective on external, public reality. Visual experience presents us (or if we are subject to illusion, apparently presents us) with aspects of the world beyond us—nothing more, nothing less. According to sensationalists, we cannot adequately characterise experience solely in terms of a ...

Worm sensation!

Mechanosensation plays a pivotal role in many aspects of pain pathology, yet the mammalian molecular transduction apparatus responsible for this sensory modality remains unknown. In January's edition of Nature Neuroscience, O'Hagan, Chalfie and Goodman [1] have provided direct electrophysiological evidence that somatic mechanotransduction in C. elegans is mediated by a complex of proteins previ...