Gene trap mutant mice Stam(gt1Gaj) were investigated in order to elucidate in vivo function of Stam2 (signal transducing adaptor molecule 2) gene, which was in vitro implicated in sorting cargo marked by monoubiquitination toward degradation in the lysosomes. The expression analysis showed high Stam2 expression in the brain including the regions related to olfaction, and in the olfactory epithe...

Like many other nocturnal arthropods, the amblypygid Phrynus pseudoparvulus is capable of homing. The environment through which these predators navigate is a dense and heterogeneous tropical forest understory and the mechanism(s) underlying their putatively complex navigational abilities are presently unknown. This study explores the sensory inputs that might facilitate nocturnal navigation in ...

This research presents the first quantitative evaluation of the olfactory acuity in extinct theropod dinosaurs. Olfactory ratios (i.e. the ratio of the greatest diameter of the olfactory bulb to the greatest diameter of the cerebral hemisphere) are analysed in order to infer the olfactory acuity and behavioural traits in theropods, as well as to identify phylogenetic trends in olfaction within ...

Olfaction, the sense of smell, was a latecomer to the systematic investigation of primate sensory ecology after long years in which it was considered to be of minor importance. This view shifted with the growing understanding of its role in social behavior and the accumulation of physiological studies demonstrating that the olfactory abilities of some primates are on a par with those of olfacto...

objectives: the aim of this study is to evaluate the effects of olfaction, audition and tactile senses in mobility and orientation of blinds. methods: the statistical sample of this research included 100 blind persons aged between 16 and 75 years (61 males and 39 females) with different level of education (16 persons lower than the diploma, 26 persons diploma, 46 persons bachelor, 12 person ma)...

It can be difficult to document effects of age-related olfactory loss on eating behavior. However, we have reported that elders, especially those with poor olfaction, were more willing to accept novel foods than were younger adults. It was also found that elderly subjects were more willing to accept foods with unpleasant odors than were young subjects. Because there is often confounding between...

The vibrational theory of olfaction is an attempt to describe a possible mechanism for olfaction which is explanatory and provides researchers with a set of principles which permit predictions allowing for structure-odor relations. Similar theories have occurred several times throughout olfactory science; this theory has again recently come to prominence by Luca Turin, who suggested that inelas...

The successful signal space projection (SSP) method was firstly performed by Ilmoniemi for separating the differenct components of evoked responses and spontaneous activity in brain signals as well as signals measured from the heart [1] and applied by Huotilainen et al. for the rejection of eye-blink [2]. The effective noise reduction method is one of the most important measuring techniques in ...

BACKGROUND The red turpentine beetle (RTB), Dendroctonus valens LeConte (Coleoptera: Curculionidae, Scolytinae), is a destructive invasive pest of conifers which has become the second most important forest pest nationwide in China. Dendroctonus valens is known to use host odors and aggregation pheromones, as well as non-host volatiles, in host location and mass-attack modulation, and thus anten...

The prefrontal (PFC) and orbitofrontal cortex (OFC) appear to be associated with both executive functions and olfaction. However, there is little data relating olfactory processing and executive functions in humans. The present study aimed at exploring the role of olfaction on executive functioning, making a distinction between primary and more cognitive aspects of olfaction. Three executive ta...