Acute inflammation and psychomotor slowing: Experimental assessment using lipopolysaccharide administration in healthy humans

Data from clinical and cross-sectional studies suggest that inflammation contributes to psychomotor slowing and attentional deficits found in depressive disorder. However, experimental evidence is still lacking. The aim of this study was to clarify the effect of inflammation on psychomotor slowing u...

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Main Authors: Analena Handke, John Axelsson, Sven Benson, Karoline Boy, Vera Weskamp, Till Hasenberg, Miriam Remy, Johannes Hebebrand, Manuel Föcker, Alexandra Brinkhoff, Meike Unteroberdörster, Harald Engler, Manfred Schedlowski, Julie Lasselin
Format: Article
Language:English
Published: Elsevier 2020-10-01
Series:Brain, Behavior, & Immunity - Health
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666354620300958
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author Analena Handke
John Axelsson
Sven Benson
Karoline Boy
Vera Weskamp
Till Hasenberg
Miriam Remy
Johannes Hebebrand
Manuel Föcker
Alexandra Brinkhoff
Meike Unteroberdörster
Harald Engler
Manfred Schedlowski
Julie Lasselin
spellingShingle Analena Handke
John Axelsson
Sven Benson
Karoline Boy
Vera Weskamp
Till Hasenberg
Miriam Remy
Johannes Hebebrand
Manuel Föcker
Alexandra Brinkhoff
Meike Unteroberdörster
Harald Engler
Manfred Schedlowski
Julie Lasselin
Acute inflammation and psychomotor slowing: Experimental assessment using lipopolysaccharide administration in healthy humans
Brain, Behavior, & Immunity - Health
Inflammation
Psychomotor slowing
Reaction time
Go/no-go
Sickness
Lipopolysaccharide
author_facet Analena Handke
John Axelsson
Sven Benson
Karoline Boy
Vera Weskamp
Till Hasenberg
Miriam Remy
Johannes Hebebrand
Manuel Föcker
Alexandra Brinkhoff
Meike Unteroberdörster
Harald Engler
Manfred Schedlowski
Julie Lasselin
author_sort Analena Handke
title Acute inflammation and psychomotor slowing: Experimental assessment using lipopolysaccharide administration in healthy humans
title_short Acute inflammation and psychomotor slowing: Experimental assessment using lipopolysaccharide administration in healthy humans
title_full Acute inflammation and psychomotor slowing: Experimental assessment using lipopolysaccharide administration in healthy humans
title_fullStr Acute inflammation and psychomotor slowing: Experimental assessment using lipopolysaccharide administration in healthy humans
title_full_unstemmed Acute inflammation and psychomotor slowing: Experimental assessment using lipopolysaccharide administration in healthy humans
title_sort acute inflammation and psychomotor slowing: experimental assessment using lipopolysaccharide administration in healthy humans
publisher Elsevier
series Brain, Behavior, & Immunity - Health
issn 2666-3546
publishDate 2020-10-01
description Data from clinical and cross-sectional studies suggest that inflammation contributes to psychomotor slowing and attentional deficits found in depressive disorder. However, experimental evidence is still lacking. The aim of this study was to clarify the effect of inflammation on psychomotor slowing using an experimental and acute model of inflammation, in which twenty-two healthy volunteers received an intravenous injection of lipopolysaccharide (LPS, dose: 0.8 ​ng/kg body weight) and of placebo, in a randomized order following a double-blind within-subject crossover design. A reaction time test and a go/no-go test were conducted 3 ​h after the LPS/placebo injection and interleukin (IL)-6 and tumor necrosis factor (TNF)-α concentrations were assessed. No effect of experimental inflammation on reaction times or errors for either test was found. However, inflammation was related to worse self-rated performance and lower effort put in the tasks. Exploratory analyses indicated that reaction time fluctuated more over time during acute inflammation. These data indicate that acute inflammation has only modest effects on psychomotor speed and attention in healthy subjects objectively, but alters the subjective evaluation of test performance. Increased variability in reaction time might be the first objective sign of altered psychomotor ability and would merit further investigation.
topic Inflammation
Psychomotor slowing
Reaction time
Go/no-go
Sickness
Lipopolysaccharide
url http://www.sciencedirect.com/science/article/pii/S2666354620300958
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spelling doaj-c810d1c8405249bdb62170fbe15d0eff2021-06-10T04:57:47ZengElsevierBrain, Behavior, & Immunity - Health2666-35462020-10-018100130Acute inflammation and psychomotor slowing: Experimental assessment using lipopolysaccharide administration in healthy humansAnalena Handke0John Axelsson1Sven Benson2Karoline Boy3Vera Weskamp4Till Hasenberg5Miriam Remy6Johannes Hebebrand7Manuel Föcker8Alexandra Brinkhoff9Meike Unteroberdörster10Harald Engler11Manfred Schedlowski12Julie Lasselin13Institute of Medical Psychology and Behavioral Immunobiology, University Hospital Essen, Essen, GermanyStress Research Institute, Stockholm University, Stockholm, Sweden; Division for Psychology, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, SwedenInstitute of Medical Psychology and Behavioral Immunobiology, University Hospital Essen, Essen, GermanyInstitute of Medical Psychology and Behavioral Immunobiology, University Hospital Essen, Essen, GermanyInstitute of Medical Psychology and Behavioral Immunobiology, University Hospital Essen, Essen, GermanyHelios Adipositas Zentrum West, Helios St. Elisabeth Klinik Oberhausen, Witten/Herdecke University, Oberhausen, GermanyDepartment of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital Essen, University of Duisburg-Essen, GermanyDepartment of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital Essen, University of Duisburg-Essen, GermanyDepartment of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital Essen, University of Duisburg-Essen, Germany; Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital Muenster, Muenster, GermanyInstitute of Medical Psychology and Behavioral Immunobiology, University Hospital Essen, Essen, Germany; Department of Nephrology, University Hospital Essen, Essen, GermanyInstitute of Medical Psychology and Behavioral Immunobiology, University Hospital Essen, Essen, Germany; Department of Neurosurgery, University Hospital Essen, Essen, GermanyInstitute of Medical Psychology and Behavioral Immunobiology, University Hospital Essen, Essen, GermanyInstitute of Medical Psychology and Behavioral Immunobiology, University Hospital Essen, Essen, GermanyInstitute of Medical Psychology and Behavioral Immunobiology, University Hospital Essen, Essen, Germany; Stress Research Institute, Stockholm University, Stockholm, Sweden; Division for Psychology, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden; Osher Center for Integrative Medicine, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden; Corresponding author. Stress Research Institute, Stockholm University, 106 91, Stockholm, Sweden.Data from clinical and cross-sectional studies suggest that inflammation contributes to psychomotor slowing and attentional deficits found in depressive disorder. However, experimental evidence is still lacking. The aim of this study was to clarify the effect of inflammation on psychomotor slowing using an experimental and acute model of inflammation, in which twenty-two healthy volunteers received an intravenous injection of lipopolysaccharide (LPS, dose: 0.8 ​ng/kg body weight) and of placebo, in a randomized order following a double-blind within-subject crossover design. A reaction time test and a go/no-go test were conducted 3 ​h after the LPS/placebo injection and interleukin (IL)-6 and tumor necrosis factor (TNF)-α concentrations were assessed. No effect of experimental inflammation on reaction times or errors for either test was found. However, inflammation was related to worse self-rated performance and lower effort put in the tasks. Exploratory analyses indicated that reaction time fluctuated more over time during acute inflammation. These data indicate that acute inflammation has only modest effects on psychomotor speed and attention in healthy subjects objectively, but alters the subjective evaluation of test performance. Increased variability in reaction time might be the first objective sign of altered psychomotor ability and would merit further investigation.http://www.sciencedirect.com/science/article/pii/S2666354620300958InflammationPsychomotor slowingReaction timeGo/no-goSicknessLipopolysaccharide