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Unilateral Resection of the Anterior Medial Temporal Lobe Impairs Odor Identification and Valence Perception
Karolinska Inst, Dept Clin Neurosci, Div Psychol, Stockholm, Sweden;Karolinska Inst, Inst Environm Med, Unit Work Environm Toxicol, Stockholm, Sweden.
Karolinska Inst, Dept Clin Neurosci, Div Psychol, Stockholm, Sweden;Monell Chem Senses Ctr, 3500 Market St, Philadelphia, PA 19104 USA;Univ Penn, Dept Psychol, 3815 Walnut St, Philadelphia, PA 19104 USA.
Stockholm Cty Council, Mental Hlth Care, Stockholm, Sweden.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Landtblom: Neurology.ORCID iD: 0000-0002-1952-8791
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2016 (English)In: Frontiers in Psychology, ISSN 1664-1078, E-ISSN 1664-1078, Vol. 6, article id 2015Article in journal (Refereed) Published
Abstract [en]

The anterior medial temporal lobe (TL), including the amygdala, has been implicated in olfactory processing, e.g., coding for intensity and valence, and seems also involved in memory. With this background, the present study evaluated whether anterior medial TL-resections in TL epilepsy affected intensity and valence ratings, as well as free and cued identification of odors. These aspects of odor perception were assessed in 31 patients with unilateral anterior medial TL-resections (17 left, 14 right) and 16 healthy controls. Results suggest that the anterior medial TL is in particular necessary for free, but also cued, odor identification. TL resection was also found to impair odor valence, but not intensity ratings. Left resected patients rated nominally pleasant and unpleasant odors as more neutral suggesting a special role for the left anterior TL in coding for emotional saliency in response to odors.

Place, publisher, year, edition, pages
2016. Vol. 6, article id 2015
Keywords [en]
anterior medial temporal lobe, amygdalo-hippocampectomy, olfactory perception, odor valence, brain Iateralization, temporal lobe epilepsy (TLE)
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Neurosciences
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URN: urn:nbn:se:uu:diva-400253DOI: 10.3389/fpsyg.2015.02015ISI: 000443501000001PubMedID: 26779109OAI: oai:DiVA.org:uu-400253DiVA, id: diva2:1384695
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Swedish Research CouncilRiksbankens JubileumsfondAvailable from: 2020-01-10 Created: 2020-01-10 Last updated: 2020-01-10Bibliographically approved

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Kumlien, EvaFredrikson, MatsÅhs, FredrikOlsson, Mats J.
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