Blar i Bergen Open Research Archive på forfatter "Specht, Karsten"
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Eliciting false auditory perceptions using speech frequencies and semantic priming: a signal detection approach
Laloyaux, Julien; Hirnstein, Marco; Specht, Karsten; Giersch, Anne; Larøi, Frank (Journal article; Peer reviewed, 2022)Introduction Individuals experiencing auditory hallucinations (AH) tend to perceive voices when exposed to random noise. However, the factors driving this tendency remain unclear. The present study examined the interaction ... -
Evaluation of a Simple Clinical Language Paradigm With Respect to Sensory Independency, Functional Asymmetry, and Effective Connectivity
Rødland, Erik; Melleby, Kathrine Midgaard; Specht, Karsten (Journal article; Peer reviewed, 2022-03-03)The present study replicates a known visual language paradigm, and extends it to a paradigm that is independent from the sensory modality of the stimuli and, hence, could be administered either visually or aurally, such ... -
An fMRI-study on single-sided deafness: Spectral-temporal properties and side of stimulation modulates hemispheric dominance
Heggdal, Peder Olaf Laugen; Aarstad, Hans Jørgen; Brännström, Jonas; Vassbotn, Flemming; Specht, Karsten (Peer reviewed; Journal article, 2019)Objective: Our main aim was to investigate the blood oxygenation level dependent (BOLD) response to monaural and binaural speech- and non-speech stimuli as measured with fMRI in subjects with single-sided deafness and in ... -
The functional and structural asymmetries of the superior temporal sulcus
Specht, Karsten; Wigglesworth, Philip (Peer reviewed; Journal article, 2018-02)The superior temporal sulcus (STS) is an anatomical structure that increasingly interests researchers. This structure appears to receive multisensory input and is involved in several perceptual and cognitive core functions, ... -
Functional asymmetry and effective connectivity of the auditory system during speech perception is modulated by the place of articulation of the consonant – A 7 T fMRI study
Specht, Karsten; Baumgartner, Florian; Stadler, Jörg; Hugdahl, Kenneth; Pollmann, Stefan (Peer reviewed; Journal article, 2014-06-11)To differentiate between stop-consonants, the auditory system has to detect subtle place of articulation (PoA) and voice-onset time (VOT) differences between stop-consonants. How this differential processing is represented ... -
Glutamatergic modulation of auditory cortex connectivity with attentional brain networks in unpredictable perceptual environment
Kompus, Kristiina; Volehaugen, Vegard; Craven, Alexander R.; Specht, Karsten (Journal article; Peer reviewed, 2020)In a stable environment the brain can minimize processing required for sensory input by forming a predictive model of the surrounding world and suppressing neural response to predicted stimuli. Unpredicted stimuli lead to ... -
The human amygdala encodes value and space during decision making
Ousdal, Olga Therese; Specht, Karsten; Server, Andres; Andreassen, Ole Andreas; Dolan, Ray J.; Jensen, Jimmy Kristian (Peer reviewed; Journal article, 2014-11-01)Valuable stimuli are invariably localized in space. While our knowledge regarding the neural networks supporting value assignment and comparisons is considerable, we lack a basic understanding of how the human brain ... -
Impact of glutamate levels on neuronal response and cognitive abilities in schizophrenia
Falkenberg, Liv Eggset; Westerhausen, René; Craven, Alexander R.; Kroken, Rune A.; Løberg, Else-Marie; Specht, Karsten; Hugdahl, Kenneth (Peer reviewed; Journal article, 2014-04-02)Schizophrenia is characterized by impaired cognitive functioning, and brain regions involved in cognitive control processes show marked glutamatergic abnormalities. However, it is presently unclear whether aberrant neuronal ... -
An Information-Theoretic Analysis of Resting-State versus Task fMRI
Tuominen, Julia Axiina; Specht, Karsten; Vaisvilaite, Liucija; Zeidman, Peter (Journal article; Peer reviewed, 2023)Resting-state fMRI is an increasingly popular alternative to task-based fMRI. However, a formal quantification of the amount of information provided by resting-state fMRI as opposed to active task conditions about neural ... -
The intra-individual reliability of 1H-MRS measurement in the anterior cingulate cortex across 1 year
Wang, Mengyun; Korbmacher, Max; Eikeland, Rune; Craven, Alexander R.; Specht, Karsten (Journal article; Peer reviewed, 2024)Magnetic resonance spectroscopy (MRS) is the primary method that can measure the levels of metabolites in the brain in vivo. To achieve its potential in clinical usage, the reliability of the measurement requires further ... -
Language lateralisation measured across linguistic and national boundaries
Hausmann, Markus; Brysbaert, Marc; van der Haegen, Lise; Lewald, Jörg; Specht, Karsten; Hirnstein, Marco; Willemin, Julie; Barton, Jack; Buchilly, Delia; Chmetz, Florian; Roch, Maja; Brederoo, Sanne; Dael, Nele; Mohr, Christine (Peer reviewed; Journal article, 2019)The visual half-field technique has been shown to be a reliable and valid neuropsychological measurement of language lateralisation, typically showing higher accuracy and faster correct responses for linguistic stimuli ... -
Listening to rhythmic music reduces connectivity within the basal ganglia and the reward system
Brodal, Hans Petter; Osnes, Berge; Specht, Karsten (Peer reviewed; Journal article, 2017-03-28)Music can trigger emotional responses in a more direct way than any other stimulus. In particular, music-evoked pleasure involves brain networks that are part of the reward system. Furthermore, rhythmic music stimulates ... -
“Mickey Mousing” in the Brain: Motion-Sound Synesthesia and the Subcortical Substrate of Audio-Visual Integration
Laeng, Bruno; Flaaten, Camilla Bärthel; Walle, Kjersti Mæhlum; Hochkeppler, Anne; Specht, Karsten (Journal article; Peer reviewed, 2021-02-15)Motion-sound synesthesia is characterized by illusory auditory sensations linked to the pattern and rhythms of motion (dubbed “Mickey Mousing” as in cinema) of visually experienced but soundless object, like an optical ... -
A multimodal study of the effects of tDCS on dorsolateral prefrontal and temporo-parietal areas during dichotic listening
Marquardt, Lynn Anne; Kusztrits, Isabella; Craven, Alexander R.; Hugdahl, Kenneth; Specht, Karsten; Hirnstein, Marco (Journal article; Peer reviewed, 2020)The underlying neural mechanisms of transcranial direct current stimulation (tDCS), especially beyond the primary motor cortex, remain unclear. Several studies examined tDCS effects on either functional activity, ... -
Music for autism: a protocol for an international randomized crossover trial on music therapy for children with autism
Loria, Marianna Ruiz; Groessing, Alexander; Guran, Alexandrina; Koçan, Asena U.; Mikus, Nace; Nater, Urs M.; Kouwer, Karlijn; Posserud, Maj-Britt Rocio; Salomon-Gimmon, Maayan; Todorova, Boryana; Wagner, Isabella C.; Gold, Christian; Silani, Giorgia; Specht, Karsten (Journal article; Peer reviewed, 2023)The notion of a connection between autism and music is as old as the first reported cases of autism, and music has been used as a therapeutic tool for many decades. Music therapy holds promise as an intervention for ... -
The neural correlates of sex differences in left-right confusion
Hjelmervik, Helene; Westerhausen, Rene; Hirnstein, Marco; Specht, Karsten; Hausmann, Markus (Peer reviewed; Journal article, 2015-03-14)Difficulties in left–right discrimination (LRD) are commonly experienced in everyday life situations. Here we investigate the neurocognitive mechanisms of LRD and the specific role of left angular gyrus. Given that previous ... -
Neuroplastic effects in patients with traumatic brain injury after music-supported therapy
Vik, Berit; Skeie, Geir Olve; Specht, Karsten (Peer reviewed; Journal article, 2019)Damage to the orbitofrontal cortex (OFC) often occurs following a traumatic brain injury (TBI) and can lead to complex behavioral changes, including difficulty with attention and concentration. We investigated the effects ... -
Physical exercise augmented cognitive behaviour therapy for older adults with generalised anxiety disorder (PEXACOG): a feasibility study for a randomized controlled trial
Sirevåg, Kristine; Stavestrand, Silje Haukenes; Sjøbø, Trond; Endal, Trygve Bruun; Nordahl, Hans Morten; Andersson, E.; Nordhus, Inger Hilde; Rekdal, Åsa Kristine; Specht, Karsten; Hammar, Åsa Karin; Halmøy, Anne; Mohlman, J.; Hjelmervik, Helene; Thayer, Julian Francis; Hovland, Anders (Journal article; Peer reviewed, 2023)Background Generalised anxiety disorder (GAD) is a frequent and severe disorder among older adults. For older adults with GAD the effect of the recommended treatment, cognitive behaviour therapy (CBT), is reduced. ... -
Physical exercise augmented cognitive behaviour therapy for older adults with generalised anxiety disorder (PEXACOG): Study protocol for a randomized controlled trial
Stavestrand, Silje Haukenes; Sirevåg, Kristine; Nordhus, Inger Hilde; Sjøbø, Trond; Endal, Trygve; Nordahl, Hans Morten; Specht, Karsten; Hammar, Åsa; Halmøy, Anne; Martinsen, Egil Wilhelm; Andersson, Eva; Hjelmervik, Helene; Mohlman, Jan; Thayer, Julian Francis; Hovland, Anders (Peer reviewed; Journal article, 2019-03-18)Background Generalised anxiety disorder (GAD) is a frequent and severe anxiety disorder among older adults. GAD increases the risk of developing other disorders such as depression and coronary heart disease. Older adults ... -
Pilot-RCT Finds No Evidence for Modulation of Neuronal Networks of Auditory Hallucinations by Transcranial Direct Current Stimulation
Marquardt, Lynn Anne; Craven, Alexander R.; Hugdahl, Kenneth Jan; Johnsen, Erik; Kroken, Rune Andreas; Kusztrits, Isabella; Specht, Karsten; Thomassen, Anne Synnøve; Weber, Sarah; Hirnstein, Marco (Journal article; Peer reviewed, 2022-10-12)Background: Transcranial direct current stimulation (tDCS) is used as treatment for auditory verbal hallucinations (AVH). The theory behind the treatment is that tDCS increases activity in prefrontal cognitive control ...