Effects of an ambient odor on brain activations during episodic retrieval of objects.
This study investigated the brain areas involved in episodic memory retrieval of pictures depending on the characteristics of the contextual environment during encoding (i.e. presence or absence of an odor). In the first stage, subjects were presented with a series of 32 pictures. Half of the pictur...
| Published in: | Brain Imaging & Behavior Vol. 7; no. 2; pp. 213 - 220 |
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| Main Authors: | , , , , , |
| Format: | research Journal Article |
| Published: |
Springer Nature
Jun2013
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104071960&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104071960 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 19317557 3GSC jtl: Brain Imaging & Behavior issn: 19317557 maglogo: N pubinfo: dt: Jun2013 vid: 7 iid: 2 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 104071960 NLM23292620 2012102327 10.1007/s11682-012-9218-8 NLM23292620 104071960 ppf: 213 ppct: 7 formats: fmt: @attributes: type: P tig: atl: Effects of an ambient odor on brain activations during episodic retrieval of objects. aug: au: Galliot, Emmanuel Comte, Alexandre Magnin, Eloi Tatu, Laurent Moulin, Thierry Millot, Jean-Louis affil: Laboratoire de Neurosciences Intégratives et Cliniques, Université de Franche-Comté, 2 Place Leclerc, 25030, Besançon Cedex, France. sug: subj: Brain Physiology Magnetic Resonance Imaging Memory Odors Perception Visual Perception Physiology Cues Female Frontal Lobe Physiology Hippocampus Physiology Human Neural Pathways Physiology Parietal Lobe Physiology Physical Stimulation Methods Young Adult Female ab: This study investigated the brain areas involved in episodic memory retrieval of pictures depending on the characteristics of the contextual environment during encoding (i.e. presence or absence of an odor). In the first stage, subjects were presented with a series of 32 pictures. Half of the pictures were presented while the subjects smelled an odor (vanillin). No particular odor was associated with the presentation of the other half of the pictures. Two weeks later, a retrieval task was performed in which the same pictures were presented during an fMRI session but without any odor association involved. The results show that both conditions activate a common episodic memory network including the hippocampal formation. Compared with the "encoding without odor" condition, the "encoding with odor" condition shows greater activations in temporal, parietal and frontal cortices, notably within the area of the orbitofrontal cortex which constitutes a main site of the secondary olfactory cortex. No activated areas were observed in the inverse contrast. These results highlight the complexity of the networks involved in episodic memory according to the context during encoding. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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