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Perception of voices that do not exist: Tracking the temporal signatures of auditory hallucinations

Total Cost €


EC-Contrib. €






 ONOFF project word cloud

Explore the words cloud of the ONOFF project. It provides you a very rough idea of what is the project "ONOFF" about.

interaction    episode    offset    track    supports    once    schizophrenia    levels    severe    blobology    dichotic    source    asking    onsets    markers    vital    underpinnings    fmri    cognitive    hypothesized    neurocognitive    clinical    causes    offsets    neurobiological    believe    complexities    perplexing    ahs    few    never    onset    iphone    experimental    auditory    excitatory    brain    listening    modulates    cognition    lower    questionnaires    spontaneously    voice    paradigm    standard    acknowledge    disorder    question    respectively    conviction    inhibitory    mechanisms    explaining    fluctuations    vertically    episodes    corresponding    hallucination    phenomenology    mind    initiation    mediate    transmitters    interview    human    single    absence    spectroscopy    explanation    app    narrows    otherwise    tests    mental    underlying    receptor    external    happens    model    phenomena    strategies    permanently    perceiving    stated    hallucinatory    time    uncovered    ah    imaging    treatment    initiated    symptom    mr    insights    seconds   

Project "ONOFF" data sheet

The following table provides information about the project.


Organization address
address: MUSEPLASSEN 1
city: BERGEN
postcode: 5020

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Norway [NO]
 Project website
 Total cost 2˙413˙371 €
 EC max contribution 2˙413˙371 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2015-AdG
 Funding Scheme ERC-ADG
 Starting year 2016
 Duration (year-month-day) from 2016-09-01   to  2021-08-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITETET I BERGEN NO (BERGEN) coordinator 2˙413˙371.00


 Project objective

'One of the most perplexing phenomena of the human mind is the conviction of perceiving a 'voice' in the absence of an external auditory source. This is called an auditory hallucination (AH), and is the most characteristic symptom of the most severe mental disorder, schizophrenia. Understanding the phenomenology, cognitive, and neurobiological underpinnings of AHs will not only provide new insights for explaining schizophrenia, but will also provide new insights into the 'complexities of the mind'. In my previous research, I have uncovered the neurocognitive markers of the initiation of an AH, focusing on what causes the onset of a hallucinatory episode. The current proposal further narrows the focus, asking a single question; why do AHs spontaneously come-and-go over time, or stated otherwise, why are they not permanently present once initiated? If we believe that the onset of an episode has neurocognitive markers, which all evidence supports, then we must also acknowledge that the offset must have corresponding markers. This question has to my knowledge never been addressed, although it is vital for the understanding of the underlying mechanisms, and for new treatment strategies. I will track the fluctuations of AH episodes in real-time with iPhone app technology, going beyond interview questionnaires. I will track how cognition modulates the onset and offset with an experimental dichotic listening paradigm, going beyond standard tests. I will track what happens in the brain the few seconds before the onset and, in particular the offset of an episode, using component-based fMRI analysis, going beyond 'blobology'. I will track with MR spectroscopy the interaction of excitatory and inhibitory transmitters that are hypothesized to mediate episode onsets and offsets, respectively, going beyond systems imaging. Thus, I will track AH episodes from the clinical to the receptor level, working vertically through a “levels of explanation” model, from higher to lower levels'


year authors and title journal last update
List of publications.
2019 Kenneth Hugdahl, Katarzyna Kazimierczak, Justyna Beresniewicz, Kristiina Kompus, Rene Westerhausen, Lars Ersland, Renate Grüner, Karsten Specht
Dynamic up- and down-regulation of the default (DMN) and extrinsic (EMN) mode networks during alternating task-on and task-off periods
published pages: 1-15, ISSN: 1932-6203, DOI: 10.5061/dryad.j6v0fq0
PlosONE 14(9) e0218358 2019-10-04
2017 Lynn Mørch-Johnsen, Ragnar Nesvåg, Kjetil N. Jørgensen, Elisabeth H. Lange, Cecilie B. Hartberg, Unn K. Haukvik, Kristiina Kompus, René Westerhausen, Kåre Osnes, Ole A. Andreassen, Ingrid Melle, Kenneth Hugdahl, Ingrid Agartz
Auditory Cortex Characteristics in Schizophrenia: Associations With Auditory Hallucinations
published pages: 75-83, ISSN: 0586-7614, DOI: 10.1093/schbul/sbw130
Schizophrenia Bulletin 43/1 2019-06-14
2017 Kenneth Hugdahl, Iris E Sommer
Auditory Verbal Hallucinations in Schizophrenia From a Levels of Explanation Perspective
published pages: 234-241, ISSN: 0586-7614, DOI: 10.1093/schbul/sbx142
Schizophrenia Bulletin 44/2 2019-06-14
2017 Maiken K. Brix, Lars Ersland, Kenneth Hugdahl, Gerard E. Dwyer, Renate Grüner, Ralph Noeske, Mona K. Beyer, Alexander R. Craven
Within- and between-session reproducibility of GABA measurements with MR spectroscopy
published pages: 421-430, ISSN: 1053-1807, DOI: 10.1002/jmri.25588
Journal of Magnetic Resonance Imaging 46/2 2019-06-14
2016 Renaud Jardri, Kenneth Hugdahl, Matthew Hughes, Jérôme Brunelin, Flavie Waters, Ben Alderson-Day, Dave Smailes, Philipp Sterzer, Philip R. Corlett, Pantelis Leptourgos, Martin Debbané, Arnaud Cachia, Sophie Denève
Are Hallucinations Due to an Imbalance Between Excitatory and Inhibitory Influences on the Brain?
published pages: 1124-1134, ISSN: 0586-7614, DOI: 10.1093/schbul/sbw075
Schizophrenia Bulletin 42/5 2019-06-14
2018 Iris E. Sommer, Hidde Kleijer, Kenneth Hugdahl
Toward personalized treatment of hallucinations
published pages: 1, ISSN: 0951-7367, DOI: 10.1097/YCO.0000000000000416
Current Opinion in Psychiatry 2019-06-14
2017 Kenneth Hugdahl
Auditory Hallucinations as Translational Psychiatry: Evidence from Magnetic Resonance Imaging
published pages: 504-513, ISSN: 2146-3123, DOI: 10.4274/balkanmedj.2017.1226
Balkan Medical Journal 34/6 2019-06-14
2018 F. Waters, J. D. Blom, R. Jardri, K. Hugdahl, I. E. C. Sommer
Auditory hallucinations, not necessarily a hallmark of psychotic disorder
published pages: 529-536, ISSN: 0033-2917, DOI: 10.1017/S0033291717002203
Psychological Medicine 48/04 2019-06-14
2017 M. M. Bohlken, K. Hugdahl, I. E. C. Sommer
Auditory verbal hallucinations: neuroimaging and treatment
published pages: 199-208, ISSN: 0033-2917, DOI: 10.1017/S003329171600115X
Psychological Medicine 47/02 2019-06-14
2018 Josef J. Bless, Frank Larøi, Julien Laloyaux, Kristiina Kompus, Bodil Kråkvik, Einar Vedul-Kjelsås, Anne Martha Kalhovde, Kenneth Hugdahl
Do adverse life events at first onset of auditory verbal hallucinations influence subsequent voice characteristics? Results from an epidemiological study
published pages: 232-236, ISSN: 0165-1781, DOI: 10.1016/j.psychres.2017.12.060
Psychiatry Research 261 2019-06-14
2018 Clara Strauss, Kenneth Hugdahl, Flavie Waters, Mark Hayward, Josef J. Bless, Liv E. Falkenberg, Bodil Kråkvik, Arve Egil Asbjørnsen, Erik Johnsen, Igne Sinkeviciute, Rune A. Kroken, Else-Marie Løberg, Neil Thomas
The Beliefs about Voices Questionnaire – Revised: A factor structure from 450 participants
published pages: 95-103, ISSN: 0165-1781, DOI: 10.1016/j.psychres.2017.09.089
Psychiatry Research 259 2019-06-14
2019 Paul Allen, Iris E. Sommer, Renaud Jardri, Michael W. Eysenck, Kenneth Hugdahl
Extrinsic and default mode networks in psychiatric conditions: Relationship to excitatory-inhibitory transmitter balance and early trauma
published pages: 90-100, ISSN: 0149-7634, DOI: 10.1016/j.neubiorev.2019.02.004
Neuroscience & Biobehavioral Reviews 99 2019-05-10
2019 Neil Thomas, Josef J Bless, Ben Alderson-Day, Imogen H Bell, Matteo Cella, Tom Craig, Philippe Delespaul, Kenneth Hugdahl, Julien Laloyaux, Frank Larøi, Tania M Lincoln, Björn Schlier, Prabitha Urwyler, David van den Berg, Renaud Jardri
Potential Applications of Digital Technology in Assessment, Treatment, and Self-help for Hallucinations
published pages: S32-S42, ISSN: 0586-7614, DOI: 10.1093/schbul/sby103
Schizophrenia Bulletin 45/Supplement_1 2019-05-10
2019 Runar Elle Smelror, Josef Johann Bless, Kenneth Hugdahl, Ingrid Agartz
Feasibility and Acceptability of Using a Mobile Phone App for Characterizing Auditory Verbal Hallucinations in Adolescents With Early-Onset Psychosis: Exploratory Study
published pages: e13882, ISSN: 2561-326X, DOI: 10.2196/13882
JMIR Formative Research 3/2 2019-08-29
2019 J. N. de Boer, M. M. J. Linszen, J. de Vries, M. J. L. Schutte, M. J. H. Begemann, S. M. Heringa, M. M. Bohlken, K. Hugdahl, A. Aleman, F. N. K. Wijnen, I. E. C. Sommer
Auditory hallucinations, top-down processing and language perception: a general population study
published pages: 1-9, ISSN: 0033-2917, DOI: 10.1017/s003329171800380x
Psychological Medicine 2019-08-29
2019 Frank Larøi, Josef J. Bless, Julien Laloyaux, Bodil Kråkvik, Einar Vedul-Kjelsås, Anne Martha Kalhovde, Marco Hirnstein, Kenneth Hugdahl
An epidemiological study on the prevalence of hallucinations in a general-population sample: Effects of age and sensory modality
published pages: 707-714, ISSN: 0165-1781, DOI: 10.1016/j.psychres.2019.01.003
Psychiatry Research 272 2019-08-29
2018 Igne Sinkeviciute, Marieke Begemann, Merel Prikken, Bob Oranje, Erik Johnsen, Wan U. Lei, Kenneth Hugdahl, Rune A. Kroken, Carina Rau, Jolien D. Jacobs, Silvia Mattaroccia, Iris E. Sommer
Efficacy of different types of cognitive enhancers for patients with schizophrenia: a meta-analysis
published pages: , ISSN: 2334-265X, DOI: 10.1038/s41537-018-0064-6
npj Schizophrenia 4/1 2019-08-29
2019 Julien Laloyaux, Josef J. Bless, Kenneth Hugdahl, Bodil Kråkvik, Einar Vedul-Kjelsås, Anne Martha Kalhovde, Frank Larøi
Multimodal hallucinations are associated with poor mental health and negatively impact auditory hallucinations in the general population: Results from an epidemiological study
published pages: 319-322, ISSN: 0920-9964, DOI: 10.1016/j.schres.2019.06.005
Schizophrenia Research 210 2019-08-29

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