PMID: 8442943Jan 1, 1993Paper

Convergence of olfactory and nasotrigeminal inputs and possible trigeminal contributions to olfactory responses in the rat thalamus

European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery
A InokuchiJ B Snow

Abstract

To elucidate the role of trigeminal input on the olfactory system, field-evoked potentials were measured following electrical stimulation of the nasociliary branch of the trigeminal nerve in the olfactory-related structures in the rat brain. Significant potential changes were recorded in the mediodorsal nucleus of the thalamus and the lateral hypothalamic area. In the mediodorsal nucleus of the thalamus, the neurons responding to olfactory bulb electrical stimulation also responded to trigeminal nerve stimulation. Single neuronal responses of mediodorsal thalamic neurons following odorant stimulation were enhanced by blockade of the trigeminal nerve with procaine. These results suggest that olfactory and trigeminal pathways converge on the same neural elements within the mediodorsal nucleus of the thalamus and that the trigeminal input may modulate olfactory input in this nucleus.

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Citations

Apr 27, 2001·Neuroscience and Biobehavioral Reviews·G BrandD Henquell
Aug 31, 2002·Human Brain Mapping·Ivanka SavicHans Berglund
Jan 9, 2007·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·M BensafiThomas Hummel
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Aug 16, 2016·Schizophrenia Research·July Silveira GomesPedro Shiozawa
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Apr 28, 2021·Behavioral and Brain Functions : BBF·Hideki KashiwadaniTomoyuki Kuwaki

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