Bilateral and Unilateral Olfactory Sensitivity' Relationship to Handedness and Gender
نویسندگان
چکیده
Unlike most major sensory systems, the majority of olfactory projections are ipsilateral. Both hemispheres can process olfactory information in a manner analogous to what is seen in other sensory systems, although, as noted below, they may do so differently. Gordon and Sperry (1969) found that patients whose corpus callosum and other forebrain commissures were surgically sectioned could only names odors presented to the left nostril; odors presented to the right nostril could be identified by pointing to an object associated with the smell.
منابع مشابه
Bilateral detection thresholds in dextrals and sinistrals reflect the more sensitive side of the nose, which is not lateralized.
Several fundamental questions remain enigmatic concerning human olfactory sensitivity, including (i) whether detection threshold differences exist between the two sides of the nose (and, if so, whether such differences are influenced by handedness) and (ii) whether bilateral (i.e. binasal) stimulation leads to lower thresholds than unilateral stimulation (and, if so, whether the degree of facil...
متن کاملQualitaty of Olfaction in Patients with Nasal and Sinuses Polyposis before and after Endo-scopic Sinus Surgery in, Vali e Asr Hospital in 2017
Background: Olfaction plays an important role in human life and promotes quality of life through understanding various odors. Nasal polyps are among the common causes of olfactory impairment. There are many different treatment options for polyps most notably the diagnosis and elimination of underlying causes. Some polyps do not respond to medication therapy or they relapse, and therefore requir...
متن کاملThe effect of handedness on cortical motor activation during simple bilateral movements.
The neuronal correlates of handedness are still poorly understood. Here we used event-related functional magnetic resonance imaging to investigate the impact of handedness on neuronal activation of the primary sensorimotor cortex, supplementary motor area and dorsal premotor cortex during simple unilateral and bilateral finger movements. In 16 right-handed and 16 left-handed individuals, we map...
متن کاملEvaluation of the role of unilateral and bilateral tooth extraction treatment on maxillary arch symmetry in Class II subdivision cases
Background and Aim: Unilateral extractions have been proposed as potential treatment options to correct Class II subdivision malocclusion, suggesting that most side effects associated with asymmetrical mechanics can be avoided, however the post-treatment arch form may not be symmetrical. Therefore, the aim of this study was to determine the post-treatment effects of unilateral premolar extrac...
متن کاملPredictors of Olfactory Impairment among Northern Iranian Population
Introduction: The performance in most smell identification tests is subjected to cultural variations. This study aimed to evaluate age, gender, and smoking-related effects on the test performance in the North of Iran. Materials and Methods: The olfactory function of 1470 eligible subjects was assessed in this study. Moreover, this study evaluated the influence of age, ...
متن کامل