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Oxytocin Enhances Social Recognition by Modulating Cortical Control of Early Olfactory Processing

Abstract

Oxytocin promotes social interactions and recognition of conspecifics that rely on olfaction in most species. The circuit mechanisms through which oxytocin modifies olfactory processing are incompletely understood. Here, we observed that optogenetically induced oxytocin release enhanced olfactory exploration and same-sex recognition of adult rats. Consistent with oxytocin's function in the anterior olfactory cortex, particularly in social cue processing, region-selective receptor deletion impaired social recognition but left odor discrimination and recognition intact outside a social context. Oxytocin transiently increased the drive of the anterior olfactory cortex projecting to olfactory bulb interneurons. Cortical top-down recruitment of interneurons dynamically enhanced the inhibitory input to olfactory bulb projection neurons and increased the signal-to-noise of their output. In summary, oxytocin generates states for optimized information extraction in an early cortical top-down network that is required for social interactions with potential implications for sensory processing deficits in autism spectrum disorders.

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References
1.
Tribollet E, Barberis C, Jard S, Dubois-Dauphin M, Dreifuss J . Localization and pharmacological characterization of high affinity binding sites for vasopressin and oxytocin in the rat brain by light microscopic autoradiography. Brain Res. 1988; 442(1):105-18. DOI: 10.1016/0006-8993(88)91437-0. View

2.
Cang J, Isaacson J . In vivo whole-cell recording of odor-evoked synaptic transmission in the rat olfactory bulb. J Neurosci. 2003; 23(10):4108-16. PMC: 6741073. View

3.
Knobloch H, Charlet A, Hoffmann L, Eliava M, Khrulev S, Cetin A . Evoked axonal oxytocin release in the central amygdala attenuates fear response. Neuron. 2012; 73(3):553-66. DOI: 10.1016/j.neuron.2011.11.030. View

4.
Linster C, Fontanini A . Functional neuromodulation of chemosensation in vertebrates. Curr Opin Neurobiol. 2014; 29:82-7. PMC: 4268319. DOI: 10.1016/j.conb.2014.05.010. View

5.
Choe H, Reed M, Benavidez N, Montgomery D, Soares N, Yim Y . Oxytocin Mediates Entrainment of Sensory Stimuli to Social Cues of Opposing Valence. Neuron. 2015; 87(1):152-63. PMC: 4689302. DOI: 10.1016/j.neuron.2015.06.022. View