Ewww–Investigating the neural basis of disgust in response to naturalistic and pictorial nauseating stimuli DOI Creative Commons
Gesa Berretz,

Canan Dutschke,

Elodie Leonard

et al.

Frontiers in Psychiatry, Journal Year: 2023, Volume and Issue: 13

Published: Jan. 23, 2023

Emotion induction in psychological and neuroscientific research has been mostly done by presenting participants with picture or film material. However, it is debatable whether this passive approach to emotion results an affective state comparable real-life emotions, if the neural correlates of processing are ecologically valid. To investigate appropriateness pictures for we presented 56 a within-subjects design naturalistic disgusting neutral stimuli as well said stimulus material while recording continuous EEG data. We calculated asymmetry indices (AIs) alpha power index regulation at F3/4, F5/6, F7/8, O1/2 electrode pairs. Participants reported higher disgust ratings compared pictorial stimuli. Investigating changes signal pronounced response (n = 38), found smaller AIs pictures. Moreover, disgusted sub-sample, there were pair indicating stronger activation right relative left hemisphere As shown display dominance negative withdrawal-associated might indicate that more appropriate emotions than improve validity from induction, future should incorporate possible.

Language: Английский

How does hemispheric specialization contribute to human-defining cognition? DOI Creative Commons
Gesa Hartwigsen, Yoshua Bengio, Danilo Bzdok

et al.

Neuron, Journal Year: 2021, Volume and Issue: 109(13), P. 2075 - 2090

Published: May 17, 2021

Language: Английский

Citations

85
Asymmetry in the Central Nervous System: A Clinical Neuroscience Perspective DOI Creative Commons
Annakarina Mundorf, Jutta Peterburs, Sebastian Ocklenburg

et al.

Frontiers in Systems Neuroscience, Journal Year: 2021, Volume and Issue: 15

Published: Dec. 14, 2021

Recent large-scale neuroimaging studies suggest that most parts of the human brain show structural differences between left and right hemisphere. Such hemispheric asymmetries have been reported for both cortical subcortical structures. Interestingly, many neurodevelopmental psychiatric disorders associated with altered functional asymmetries. However, findings concerning relation largely inconsistent, within specific as well disorders. In present review, we compare from a clinical neuroscience perspective across different We focus especially on recent studies, to concentrate replicable effects. With notable exception major depressive disorder, all reviewed were distinct patterns alterations in While autism spectrum disorder was broader range areas, other linked more areas related cognitive functions symptomology these The implications are highlighted context transdiagnostic approaches psychopathology.

Language: Английский

Citations

62
Frontal and parietal EEG alpha asymmetry: a large-scale investigation of short-term reliability on distinct EEG systems DOI Creative Commons
Dorothea Metzen, Erhan Genç, Stephan Getzmann

et al.

Brain Structure and Function, Journal Year: 2021, Volume and Issue: 227(2), P. 725 - 740

Published: Oct. 21, 2021

EEG resting-state alpha asymmetry is one of the most widely investigated forms functional hemispheric asymmetries in both basic and clinical neuroscience. However, studies yield inconsistent results. One crucial prerequisite to obtain reproducible results reliability index interest. There a body research suggesting moderate-to-good asymmetry, but unfortunately sample sizes these are typically small. This study presents first large-scale short-term frontal parietal asymmetry. We used Dortmund Vital Study data set containing 370 participants. In each participant, resting state was recorded eight times, twice with their eyes opened, eyes-closed, on two different systems. found good power systems for electrode pairs. also that higher eyes-closed condition than eyes-open condition. The frontomedial pair showed weaker frontolateral Interestingly, we no population-level electrodes, sites research. conclusion, our suggest while an overall reliable measure, should be assessed using multiple

Language: Английский

Citations

49
Exploring brain activity for positive and negative emotions by means of EEG microstates DOI Creative Commons
Giulia Prete, Pierpaolo Croce, Filippo Zappasodi

et al.

Scientific Reports, Journal Year: 2022, Volume and Issue: 12(1)

Published: March 1, 2022

Abstract Microstate analysis applied to electroencephalographic signals (EEG) allows both temporal and spatial imaging exploration represents the activity across scalp. Despite its potential usefulness in understanding brain during a specific task, it has been mostly exploited at rest. We extracted EEG microstates presentation of emotional expressions, presented either unilaterally (a face one visual hemifield) or bilaterally (two faces, each hemifield). Results revealed four microstate’s topographies: (i) M1 involves areas, mainly right hemisphere, with higher occurrence for stimuli left than field; (ii) M2 is localized cortex, coverage unilateral bilateral presentations; (iii) M3, temporo-parietal localization, shows presentation; (iv) M4, fronto-parietal areas possibly representing hemispheric specialization peculiar stimulus category, field. These results suggest that microstate valid tool explore cerebral response emotions can add new insights on functioning, respect other markers.

Language: Английский

Citations

31
Cerebral Polymorphisms for Lateralisation: Modelling the Genetic and Phenotypic Architectures of Multiple Functional Modules DOI Open Access
I. C. McManus

Symmetry, Journal Year: 2022, Volume and Issue: 14(4), P. 814 - 814

Published: April 14, 2022

Recent fMRI and fTCD studies have found that functional modules for aspects of language, praxis, visuo-spatial functioning, while typically left, left right hemispheric respectively, frequently show atypical lateralisation. Studies with increasing numbers participants are finding module combinations, which here termed cerebral polymorphisms—qualitatively different lateral organisations cognitive functions. Polymorphisms more frequent in left-handers than right-handers, but it is far from the case right-handers all organisation described introductory textbooks. In computational terms, this paper extends original, monogenic McManus DC (dextral-chance) model handedness language dominance to multiple modules, a polygenic compatible molecular genetics handedness, biology visceral asymmetries primary ciliary dyskinesia. Distributions polymorphisms calculated families twins, consequences implications explored explaining aphasia due damage, as well possible talents deficits arising inter- intra-hemispheric modular connections. The set broader context testing psychological theories, issues laterality measurement, mutation-selection balance, evolution brain asymmetries.

Language: Английский

Citations

31
Walk the plank! Using mobile electroencephalography to investigate emotional lateralization of immersive fear in virtual reality DOI Creative Commons

Yasmin El Basbasse,

Julian Packheiser, Jutta Peterburs

et al.

Royal Society Open Science, Journal Year: 2023, Volume and Issue: 10(5)

Published: May 1, 2023

Most studies on emotion processing induce emotions through images or films. However, this method lacks ecological validity, limiting generalization to real-life processing. More realistic paradigms using virtual reality (VR) may be better suited investigate authentic emotional states and their neuronal correlates. This pre-registered study examines the underpinnings of naturalistic fear, measured mobile electroencephalography (EEG). Seventy-five healthy participants walked across a plank which extended from side skyscraper-either 80 storeys up (the negative condition) at street level neutral condition). Subjective ratings showed that condition induced feelings fear. Following VR experience, passively viewed international affective picture system (IAPS) outside VR. We compared frontal alpha asymmetry between IAPS task valence conditions. Asymmetry indices in revealed greater right-hemispheric lateralization during condition, relative viewing. Within task, no significant asymmetries were detected. In summary, our findings indicate immersive technologies such as can advance research by providing more ecologically valid ways emotion.

Language: Английский

Citations

19
A fusion of neural, genetic and ensemble machine learning approaches for enhancing the engineering predictive capabilities of lightweight foamed reinforced concrete beam DOI
Chen Yang, Jie Zeng, Jianping Jia

et al.

Powder Technology, Journal Year: 2024, Volume and Issue: 440, P. 119680 - 119680

Published: March 31, 2024

Language: Английский

Citations

8
Handedness and depression: A meta-analysis across 87 studies DOI
Julian Packheiser, Judith Schmitz,

Clara C. Stein

et al.

Journal of Affective Disorders, Journal Year: 2021, Volume and Issue: 294, P. 200 - 209

Published: July 16, 2021

Language: Английский

Citations

33
Investigating real-life emotions in romantic couples: a mobile EEG study DOI Creative Commons
Julian Packheiser, Gesa Berretz, Noemi Rook

et al.

Scientific Reports, Journal Year: 2021, Volume and Issue: 11(1)

Published: Jan. 13, 2021

Abstract The neural basis of emotional processing has been largely investigated in constrained spatial environments such as stationary EEGs or fMRI scanners using highly artificial stimuli like standardized pictures depicting scenes. Typically, experiments have low ecological validity and it remains unclear whether their results reflect neuronal real-life affective situations at all. Critically, do not only encompass the perception emotions, but also behavioral components associated with them. In this study, we aimed to investigate emotions by recording couples homes mobile EEG technology during embracing, kissing speech. We focused on asymmetries demonstrated be strongly lateralized brain. found higher alpha beta power asymmetry embracing frontal electrodes kisses speech compared a neutral control condition indicative stronger left-hemispheric activation. contrast, lower parieto-occipital electrode sites right-hemispheric Our findings for are line models lateralization that postulate valence-specific over cortices dominance regions. pointed more towards indicating that, while frequencies seem functionally associated, they reflecting identical cognitive processing.

Language: Английский

Citations

32
Is any but a tiny fraction of handedness variance likely to be due to the external environment? DOI Creative Commons
I. C. McManus

Laterality Asymmetries of Body Brain and Cognition, Journal Year: 2021, Volume and Issue: 26(3), P. 310 - 314

Published: March 2, 2021

Non-shared environmental variance (NSEV) accounts for 76% of in genetic modelling handedness. However, it is very misleading to suggest that NSEV, "highlights the importance non-genetic factors ontogenesis hemispheric asymmetries". NSEV poorly named, calculated only by subtraction, and provides no direct evidence effects sense external environment. Miller suggested would be better named as "residual effect". Mitchell has much or indeed most "developmental variance" should included under heading nature rather than nurture, handedness, "largely reflect[s] outcome randomness brain development". Overall a small proportion handedness likely related usual term.

Language: Английский

Citations

28