background and aims. the majority of complete denture wearers are old. clinical experience suggests that complete denture wearers have various disorders in their gustatory and olfactory senses due to disturbance of airways between the oral and nasal cavities caused by upper complete denture. the purpose of this study was to evaluate the effect of upper complete denture on gustatory and olfactor...

introduction: radiotherapy is a common treatment modality for patients with head and neck malignancies. as the nose lies within the field of radiotherapy of the head and neck, the olfactory fibers and olfactory receptors may be affected by radiation. the aim of this study was to evaluate changes in olfactory threshold in patients with head and neck malignancies who have received radiation to th...

In recent works, large databases of stimuli and their corresponding olfactory perceptions have been analyzed to gain an insight into the organization of olfactory perception. Maps of these perceptions have provided evidence that the olfactory perception space is high dimensional. Based on these results, the question of the dimensionality of olfactory perception space can be asked using a new pe...

Compared with visual and auditory imagery, little is known about olfactory imagery. There is evidence that respiration may be altered by both olfactory perception and olfactory imagery. In order to investigate this relationship, breathing parameters (respiratory minute volume, respiratory amplitude, and breathing rate) in human subjects during olfactory perception and olfactory imagery were inv...

Rules linking patterns of olfactory receptor neuron activation in the nose to activity patterns in the brain and ensuing odor perception remain poorly understood. Artificially stimulating olfactory neurons with electrical currents and measuring ensuing perception may uncover these rules. We therefore inserted an electrode into the nose of 50 human volunteers and applied various currents for abo...

Introduction: Radiotherapy is a common treatment modality for patients with head and neck malignancies. As the nose lies within the field of radiotherapy of the head and neck, the olfactory fibers and olfactory receptors may be affected by radiation. The aim of this study was to evaluate changes in olfactory threshold in patients with head and neck malignancies who have received radiation to th...

In this paper we describe an e4ort to project an olfactory perception database onto the nearest high dimensional Euclidean space using multidimensional scaling. This yields an independent Euclidean interpretation of odor perception, whether this space is metric or not. Self-organizing maps were then applied to produce two-dimensional maps of the Euclidean approximation of olfactory perception s...

During food intake flavor perception results from simultaneous stimulation of the gustatory, olfactory and trigeminal systems. Olfactory stimulation occurs mainly through the retronasal pathway and the resulting perception is often interpreted as a taste perception, thus leading to the well-known sensory confusion between taste and olfaction. The present experiment was designed to study, with f...

Olfaction is the sense of smell. It is the phenemenon of receptors detecting certain properties about the molecules that are known as odorants.The perception of an odour is the result of an extraordinary complex cascade of events. The very first steps of this perception involves the interaction of chemicals with our olfactory neurons[7]. Odour is a property that depends on several highly variab...

The concept of odor maps in the olfactory system can imply a precise one-to-one mapping between the physicochemical stimulus, the central sensory representation of that stimulus, and the olfactory perception. However, in humans and animals, experience plays a major role in qualitative perception of odors. This suggests that either odor maps and coding in the olfactory bulb (OB) are highly dynam...