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morten kringelbach

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https://www.readbyqxmd.com/read/29779732/music-dance-and-other-art-forms-new-insights-into-the-links-between-hedonia-pleasure-and-eudaimonia-well-being
#1
Eloise A Stark, Peter Vuust, Morten L Kringelbach
For Aristotle, the goal of human life was to live well, to flourish, and to ultimately have a good life. These goals can be conceptualized as "eudaimonia," a concept distinct from "hedonia" (pleasure). Many people would argue that the arts play a large role in their well-being and eudaimonia. Music in particular is a culturally ubiquitous phenomenon which brings joy and social bonding to listeners. Research has given insights into how the "sweet anticipation" of music and other art forms can lead to pleasure, but a full understanding of eudaimonia from the arts is still missing...
2018: Progress in Brain Research
https://www.readbyqxmd.com/read/29683495/now-you-hear-it-a-predictive-coding-model-for-understanding-rhythmic-incongruity
#2
Peter Vuust, Martin J Dietz, Maria Witek, Morten L Kringelbach
Rhythmic incongruity in the form of syncopation is a prominent feature of many contemporary musical styles. Syncopations afford incongruity between rhythmic patterns and the meter, giving rise to mental models of differently accented isochronous beats. Syncopations occur either in isolation or as part of rhythmic patterns, so-called grooves. On the basis of the predictive coding framework, we discuss how brain processing of rhythm can be seen as a special case of predictive coding. We present a simple, yet powerful model for how the brain processes rhythmic incongruity: the model for predictive coding of rhythmic incongruity...
April 23, 2018: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/29625237/scale-freeness-or-partial-synchronization-in-neural-mass-phase-oscillator-networks-pick-one-of-two
#3
REVIEW
Andreas Daffertshofer, Robert Ton, Bastian Pietras, Morten L Kringelbach, Gustavo Deco
Modeling and interpreting (partial) synchronous neural activity can be a challenge. We illustrate this by deriving the phase dynamics of two seminal neural mass models: the Wilson-Cowan firing rate model and the voltage-based Freeman model. We established that the phase dynamics of these models differed qualitatively due to an attractive coupling in the first and a repulsive coupling in the latter. Using empirical structural connectivity matrices, we determined that the two dynamics cover the functional connectivity observed in resting state activity...
April 3, 2018: NeuroImage
https://www.readbyqxmd.com/read/29526743/distinct-criticality-of-phase-and-amplitude-dynamics-in-the-resting-brain
#4
REVIEW
Andreas Daffertshofer, Robert Ton, Morten L Kringelbach, Mark Woolrich, Gustavo Deco
Converging research suggests that the resting brain operates at the cusp of dynamic instability, as signified by scale-free temporal correlations. We asked whether the scaling properties of these correlations differ between amplitude and phase fluctuations, which may reflect different aspects of cortical functioning. Using source-reconstructed magneto-encephalographic signals, we found power-law scaling for the collective amplitude and for phase synchronization, both capturing whole-brain activity. The temporal changes of the amplitude comprise slow, persistent memory processes, whereas phase synchronization exhibits less temporally structured and more complex correlations, indicating a fast and flexible coding...
March 9, 2018: NeuroImage
https://www.readbyqxmd.com/read/29504798/environmental-light-and-time-of-day-modulate-subjective-liking-and-wanting
#5
Jacob Itzhacki, Bart H W Te Lindert, Wisse P van der Meijden, Morten L Kringelbach, Jorge Mendoza, Eus J W Van Someren
Several studies demonstrated effects of light on affect via projections from the retina of the eye to the circadian clock or via projections to areas involved in mood and reward. Few field studies investigated how naturally fluctuating light levels affect positive and negative mood in everyday life, but none addressed two key components of the reward system: wanting and liking. To elucidate diurnal profiles and immediate effects of dynamically changing light intensity in everyday life, subjective wanting and liking were assessed using experience sampling, while continuously monitoring environmental illuminance...
March 5, 2018: Emotion
https://www.readbyqxmd.com/read/29425897/the-dynamics-of-human-cognition-increasing-global-integration-coupled-with-decreasing-segregation-found-using-ieeg
#6
Josephine Cruzat, Gustavo Deco, Adrià Tauste-Campo, Alessandro Principe, Albert Costa, Morten L Kringelbach, Rodrigo Rocamora
Cognitive processing requires the ability to flexibly integrate and process information across large brain networks. How do brain networks dynamically reorganize to allow broad communication between many different brain regions in order to integrate information? We record neural activity from 12 epileptic patients using intracranial EEG while performing three cognitive tasks. We assess how the functional connectivity between different brain areas changes to facilitate communication across them. At the topological level, this facilitation is characterized by measures of integration and segregation...
May 15, 2018: NeuroImage
https://www.readbyqxmd.com/read/29425334/bright-environmental-light-ameliorates-deficient-subjective-liking-in-insomnia-an-experience-sampling-study
#7
Bart H W Te Lindert, Jacob Itzhacki, Wisse P van der Meijden, Morten L Kringelbach, Jorge Mendoza, Eus J W Van Someren
Study Objectives: Altered comfort sensing and reduced gray matter volume in the orbitofrontal cortex of the brain in people suffering from insomnia disorder (ID) suggest compromised processes of motivation and hedonia. The experience sampling (ES) method was used to evaluate whether, in naturalistic conditions, people with ID differ from those without sleep complaints with respect to subjective Wanting and Liking, two major dimensions of the reward system. Since light affects brain circuits involved in affect and reward, ES was combined with ambulatory monitoring of light intensity fluctuations to evaluate their effect on subjective Wanting and Liking...
April 1, 2018: Sleep
https://www.readbyqxmd.com/read/29408479/neural-responses-during-the-anticipation-and-receipt-of-olfactory-reward-and-punishment-in-human
#8
Lai-Quan Zou, Han-Yu Zhou, Yuan Zhuang, Tim J van Hartevelt, Simon S Y Lui, Eric F C Cheung, Arne Møller, Morten L Kringelbach, Raymond C K Chan
Pleasure experience is an important part of normal healthy life and is essential for general and mental well-being. Many neuroimaging studies have investigated the underlying neural processing of verbal and visual modalities of reward. However, how the brain processes rewards in the olfactory modality is not fully understood. This study aimed to examine the neural basis of olfactory rewards in 25 healthy participants using functional magnetic resonance imaging (fMRI). We developed an Olfactory Incentive Delay (OLID) imaging task distinguishing between the anticipation and receipt of olfactory rewards and punishments...
March 2018: Neuropsychologia
https://www.readbyqxmd.com/read/29247209/connectome-harmonic-decomposition-of-human-brain-activity-reveals-dynamical-repertoire-re-organization-under-lsd
#9
Selen Atasoy, Leor Roseman, Mendel Kaelen, Morten L Kringelbach, Gustavo Deco, Robin L Carhart-Harris
Recent studies have started to elucidate the effects of lysergic acid diethylamide (LSD) on the human brain but the underlying dynamics are not yet fully understood. Here we used 'connectome-harmonic decomposition', a novel method to investigate the dynamical changes in brain states. We found that LSD alters the energy and the power of individual harmonic brain states in a frequency-selective manner. Remarkably, this leads to an expansion of the repertoire of active brain states, suggestive of a general re-organization of brain dynamics given the non-random increase in co-activation across frequencies...
December 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29225066/perturbation-of-whole-brain-dynamics-in-silico-reveals-mechanistic-differences-between-brain-states
#10
Gustavo Deco, Joana Cabral, Victor M Saenger, Melanie Boly, Enzo Tagliazucchi, Helmut Laufs, Eus Van Someren, Beatrice Jobst, Angus Stevner, Morten L Kringelbach
Human neuroimaging research has revealed that wakefulness and sleep involve very different activity patterns. Yet, it is not clear why brain states differ in their dynamical complexity, e.g. in the level of integration and segregation across brain networks over time. Here, we investigate the mechanisms underlying the dynamical stability of brain states using a novel off-line in silico perturbation protocol. We first adjust a whole-brain computational model to the basal dynamics of wakefulness and deep sleep recorded with fMRI in two independent human fMRI datasets...
April 1, 2018: NeuroImage
https://www.readbyqxmd.com/read/28966977/novel-intrinsic-ignition-method-measuring-local-global-integration-characterizes-wakefulness-and-deep-sleep
#11
Gustavo Deco, Enzo Tagliazucchi, Helmut Laufs, Ana Sanjuán, Morten L Kringelbach
A precise definition of a brain state has proven elusive. Here, we introduce the novel local-global concept of intrinsic ignition characterizing the dynamical complexity of different brain states. Naturally occurring intrinsic ignition events reflect the capability of a given brain area to propagate neuronal activity to other regions, giving rise to different levels of integration. The ignitory capability of brain regions is computed by the elicited level of integration for each intrinsic ignition event in each brain region, averaged over all events...
September 2017: ENeuro
https://www.readbyqxmd.com/read/28943891/the-affective-core-of-emotion-linking-pleasure-subjective-well-being-and-optimal-metastability-in-the-brain
#12
Morten L Kringelbach, Kent C Berridge
Arguably, emotion is always valenced-either pleasant or unpleasant-and dependent on the pleasure system. This system serves adaptive evolutionary functions; relying on separable wanting, liking, and learning neural mechanisms mediated by mesocorticolimbic networks driving pleasure cycles with appetitive, consummatory, and satiation phases. Liking is generated in a small set of discrete hedonic hotspots and coldspots, while wanting is linked to dopamine and to larger distributed brain networks. Breakdown of the pleasure system can lead to anhedonia and other features of affective disorders...
July 2017: Emotion Review: Journal of the International Society for Research on Emotion
https://www.readbyqxmd.com/read/28863720/harmonic-brain-modes-a-unifying-framework-for-linking-space-and-time-in-brain-dynamics
#13
Selen Atasoy, Gustavo Deco, Morten L Kringelbach, Joel Pearson
A fundamental characteristic of spontaneous brain activity is coherent oscillations covering a wide range of frequencies. Interestingly, these temporal oscillations are highly correlated among spatially distributed cortical areas forming structured correlation patterns known as the resting state networks, although the brain is never truly at "rest." Here, we introduce the concept of harmonic brain modes-fundamental building blocks of complex spatiotemporal patterns of neural activity. We define these elementary harmonic brain modes as harmonic modes of structural connectivity; that is, connectome harmonics, yielding fully synchronous neural activity patterns with different frequency oscillations emerging on and constrained by the particular structure of the brain...
September 1, 2017: Neuroscientist: a Review Journal Bringing Neurobiology, Neurology and Psychiatry
https://www.readbyqxmd.com/read/28851996/uncovering-the-underlying-mechanisms-and-whole-brain-dynamics-of-deep-brain-stimulation-for-parkinson-s-disease
#14
Victor M Saenger, Joshua Kahan, Tom Foltynie, Karl Friston, Tipu Z Aziz, Alexander L Green, Tim J van Hartevelt, Joana Cabral, Angus B A Stevner, Henrique M Fernandes, Laura Mancini, John Thornton, Tarek Yousry, Patricia Limousin, Ludvic Zrinzo, Marwan Hariz, Paulo Marques, Nuno Sousa, Morten L Kringelbach, Gustavo Deco
Deep brain stimulation (DBS) for Parkinson's disease is a highly effective treatment in controlling otherwise debilitating symptoms. Yet the underlying brain mechanisms are currently not well understood. Whole-brain computational modeling was used to disclose the effects of DBS during resting-state functional Magnetic Resonance Imaging in ten patients with Parkinson's disease. Specifically, we explored the local and global impact that DBS has in creating asynchronous, stable or critical oscillatory conditions using a supercritical bifurcation model...
August 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28813266/intuitive-parenting-understanding-the-neural-mechanisms-of-parents-adaptive-responses-to-infants
#15
REVIEW
Christine E Parsons, Katherine S Young, Alan Stein, Morten L Kringelbach
When interacting with an infant, parents intuitively enact a range of behaviours that support infant communicative development. These behaviours include altering speech, establishing eye contact and mirroring infant expressions and are argued to occur largely in the absence of conscious intent. Here, we describe studies investigating early, pre-conscious neural responses to infant cues, which we suggest support aspects of parental intuitive behaviour towards infants. This work has provided converging evidence for rapid differentiation of infant cues from other salient social signals in the adult brain...
June 2017: Current Opinion in Psychology
https://www.readbyqxmd.com/read/28698644/cognitive-performance-in-healthy-older-adults-relates-to-spontaneous-switching-between-states-of-functional-connectivity-during-rest
#16
Joana Cabral, Diego Vidaurre, Paulo Marques, Ricardo Magalhães, Pedro Silva Moreira, José Miguel Soares, Gustavo Deco, Nuno Sousa, Morten L Kringelbach
Growing evidence has shown that brain activity at rest slowly wanders through a repertoire of different states, where whole-brain functional connectivity (FC) temporarily settles into distinct FC patterns. Nevertheless, the functional role of resting-state activity remains unclear. Here, we investigate how the switching behavior of resting-state FC relates with cognitive performance in healthy older adults. We analyse resting-state fMRI data from 98 healthy adults previously categorized as being among the best or among the worst performers in a cohort study of >1000 subjects aged 50+ who underwent neuropsychological assessment...
July 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28680119/increased-stability-and-breakdown-of-brain-effective-connectivity-during-slow-wave-sleep-mechanistic-insights-from-whole-brain-computational-modelling
#17
Beatrice M Jobst, Rikkert Hindriks, Helmut Laufs, Enzo Tagliazucchi, Gerald Hahn, Adrián Ponce-Alvarez, Angus B A Stevner, Morten L Kringelbach, Gustavo Deco
Recent research has found that the human sleep cycle is characterised by changes in spatiotemporal patterns of brain activity. Yet, we are still missing a mechanistic explanation of the local neuronal dynamics underlying these changes. We used whole-brain computational modelling to study the differences in global brain functional connectivity and synchrony of fMRI activity in healthy humans during wakefulness and slow-wave sleep. We applied a whole-brain model based on the normal form of a supercritical Hopf bifurcation and studied the dynamical changes when adapting the bifurcation parameter for all brain nodes to best match wakefulness and slow-wave sleep...
July 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28596608/the-dynamics-of-resting-fluctuations-in-the-brain-metastability-and-its-dynamical-cortical-core
#18
Gustavo Deco, Morten L Kringelbach, Viktor K Jirsa, Petra Ritter
In the human brain, spontaneous activity during resting state consists of rapid transitions between functional network states over time but the underlying mechanisms are not understood. We use connectome based computational brain network modeling to reveal fundamental principles of how the human brain generates large-scale activity observable by noninvasive neuroimaging. We used structural and functional neuroimaging data to construct whole- brain models. With this novel approach, we reveal that the human brain during resting state operates at maximum metastability, i...
June 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28595052/hierarchy-of-information-processing-in-the-brain-a-novel-intrinsic-ignition-framework
#19
REVIEW
Gustavo Deco, Morten L Kringelbach
A general theory of brain function has to be able to explain local and non-local network computations over space and time. We propose a new framework to capture the key principles of how local activity influences global computation, i.e., describing the propagation of information and thus the broadness of communication driven by local activity. More specifically, we consider the diversity in space (nodes or brain regions) over time using the concept of intrinsic ignition, which are naturally occurring intrinsic perturbations reflecting the capability of a given brain area to propagate neuronal activity to other regions in a given brain state...
June 7, 2017: Neuron
https://www.readbyqxmd.com/read/28585020/experimental-manipulation-of-infant-temperament-affects-amygdala-functional-connectivity
#20
Madelon M E Riem, Marinus H Van Ijzendoorn, Christine E Parsons, Katherine S Young, Pietro De Carli, Morten L Kringelbach, Marian J Bakermans-Kranenburg
In this functional magnetic resonance imaging (fMRI) study we examined neural processing of infant faces associated with a happy or a sad temperament in nulliparous women. We experimentally manipulated adult perception of infant temperament in a probabilistic learning task. In this task, participants learned about an infant's temperament through repeated pairing of the infant face with positive or negative facial expressions and vocalizations. At the end of the task, participants were able to differentiate between "mostly sad" infants who cried often and "mostly happy" infants who laughed often...
August 2017: Cognitive, Affective & Behavioral Neuroscience
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