scholarly journals Music-Based Intervention Connects Auditory and Reward Systems

2021 ◽  
Author(s):  
Milena Quinci ◽  
Alexander Belden ◽  
Valerie Goutama ◽  
Dayang Gong ◽  
Suzanne Hanser ◽  
...  
Keyword(s):  
Older Adults ◽  
Brain Aging ◽  
Network Connectivity ◽  
Neural Mechanism ◽  
Brain Network ◽  
Music Listening ◽  
Post Intervention ◽  
Brain Network Connectivity ◽  
Parametric Effects ◽  
Listening Task

Listening to pleasurable music is known to engage the brain's reward system, but little is known about how this engagement develops over time. Here we show for the first time that brain network connectivity can change longitudinally as a result of a personalized receptive music-based intervention (MBI) in cognitively unimpaired older adults. Using a combination of whole-brain regression, seed-based connectivity analysis, and representational similarity analysis (RSA), we compared fMRI responses during a simple music listening task in older adults before and after an eight-week personalized music listening program. Participants rated self-selected and researcher-selected musical excerpts on liking and familiarity. Parametric effects of liking, familiarity, and selection showed significant activation of auditory, reward, default mode, and sensorimotor areas both pre- and post-intervention. Seed-based connectivity comparing pre- and post-intervention showed a significant increase in functional connectivity between auditory regions and the medial prefrontal cortex (mPFC), and this auditory-mPFC connectivity was modulated by participant liking and familiarity ratings. RSA showed significant representations of selection and novelty in auditory regions at both time-points, and an increase in striatal representation of musical stimuli following intervention. Taken together, results show a sensitivity of auditory, reward, default, and sensorimotor regions to individual differences in music familiarity and liking, as well as a shift in brain network dynamics following the personalized MBI. Results show how regular music listening can provide an auditory channel towards the mPFC, thus offering a potential neural mechanism supporting healthy brain aging.

scholarly journals Music-Based Intervention Connects Auditory and Reward Systems

2021 ◽  
Author(s):  
Milena Aiello Quinci ◽  
Alexander Belden ◽  
Valerie Goutama ◽  
Dayang Gong ◽  
Suzanne Hanser ◽  
...  
Keyword(s):  
Older Adults ◽  
Behavioral Interventions ◽  
Healthy Aging ◽  
Network Connectivity ◽  
Neural Mechanism ◽  
Preliminary Evidence ◽  
Brain Network ◽  
Music Listening ◽  
Reward Systems ◽  
Post Intervention

Abstract Listening to pleasurable music is known to engage the brain’s reward system. This has motivated many cognitive-behavioral interventions for healthy aging, but little is known about the effects of music-based intervention (MBI) on plasticity of the cognitive and reward systems. Here we show preliminary evidence that brain network connectivity can change after receptive MBI in cognitively unimpaired older adults. Using a combination of whole-brain regression, seed-based connectivity analysis, and representational similarity analysis (RSA), we examined fMRI responses during music listening in older adults before and after an eight-week personalized MBI. Participants rated self-selected and researcher-selected musical excerpts on liking and familiarity. Parametric effects of liking, familiarity, and selection showed simultaneous activation in auditory, reward, and default mode network (DMN) areas. Seed-based connectivity comparing pre- and post-intervention showed significant increase in functional connectivity between auditory regions and medial prefrontal cortex (mPFC); this auditory-mPFC connectivity was modulated by participant liking and familiarity ratings. RSA showed significant representations of selection and novelty at both time-points, and an increase in striatal representation of musical stimuli following intervention. Taken together, results show how regular music listening can provide an auditory channel towards the mPFC, thus offering a potential neural mechanism for MBI supporting healthy aging.

scholarly journals Six-Month Lower-Leg Sensory Stimulation Augments Neural Network Connectivity Associated With Improved Gait

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. 960-961
Author(s):  
Chun Liang Hsu ◽  
Ikechukwu Iloputaife ◽  
Lars Oddsson ◽  
Brad Manor ◽  
Lewis Lipsitz
Keyword(s):  
Older Adults ◽  
Lower Limb ◽  
Network Connectivity ◽  
Lower Leg ◽  
Afferent Input ◽  
Brain Network ◽  
Community Dwelling ◽  
Vibrotactile Stimulation ◽  
Post Intervention ◽  
Brain Network Connectivity

Abstract Foot sole somatosensory impairment associated with peripheral neuropathy (PN) is prevalent and a strong independent risk factor for gait disturbance and falls in older adults. A lower-limb sensory prosthesis providing afferent input related to foot sole pressure distributions via lower-leg vibrotactile stimulation has been demonstrated to improve gait in people with PN. The effects of this device on brain function related to motor control, however, remains equivocal. This study aimed to explore changes in brain network connectivity after six months of daily use of the prosthesis among individuals with diagnosed PN and balance problems. Functional Gait Assessment (FGA) and resting-state functional magnetic resonance imaging were completed before and after the intervention. Preliminary analysis on participants who have completed the study to date (N=5; mean age 76 years) indicated altered connectivity of the sensorimotor network (SMN), frontoparietal network (FPN), and the default mode network (DMN) post-intervention (Z>3.11, unadjusted p<0.05). Participants displayed an average improvement of 5.5 point in the FGA (Minimal Clinically Important Differences>4 for community-dwelling older adults) that was correlated with connectivity changes (unadjusted p<0.05). Specifically, improved FGA was associated with: 1) increased connectivity between the SMN, cerebellum, and occipital cortex; 2) increased connectivity between the FPN, cerebellum, calcarine and intracalcarine; and 3) decreased connectivity between DMN and intracalcarine. These early findings suggest that long-term use of a lower-limb sensory prosthesis may induce neuroplastic changes in brain network connectivity reflecting enhanced bottom-up sensory-attentional processing and suppression of the DMN that are relevant to gait improvements among older adults with PN.

scholarly journals EFFECTS OF FUNCTIONAL BRAIN NETWORKS AND WHITE MATTER DISEASE ON MOBILITY OF OLDER ADULTS IN AN EXERCISE INTERVENTION

2019 ◽  
Vol 3 (Supplement_1) ◽  
pp. S851-S852
Author(s):  
Blake R Neyland ◽  
Robert Kraft ◽  
Mary Lyles ◽  
Stephen Kritchevsky ◽  
Paul J Laurienti ◽  
...  
Keyword(s):  
Older Adults ◽  
White Matter ◽  
Exercise Intervention ◽  
Brain Networks ◽  
Network Connectivity ◽  
Brain Network ◽  
White Matter Disease ◽  
Before And After ◽  
Functional Brain Networks ◽  
Brain Network Connectivity

Abstract Declining mobility is associated with increased accumulation of white matter hyperintensities (WMH). However, a high WMH burden is not always accompanied by impaired mobility. Our previous work demonstrates that some variance in mobility may be explained by brain network connectivity. Here, we extended this work by measuring WMHs and brain networks in older adults participating in a lifestyle intervention. The Short Physical Performance Battery (SPPB) and resting state functional magnetic resonance imaging (fMRI) were collected before and after a 5-month caloric restriction plus aerobic exercise intervention in 57 obese, sedentary adults aged 65-78. Participants were categorized based on median splits of baseline SPPB scores and WMH burden: Expected Healthy (EH: low WMH, SPPB≥11, n=16), Expected Impaired (EI: high WMH, SPPB≤10, n=17), Unexpected Healthy (UH: high WMH, SPPB≥11, n=12), and Unexpected Impaired (UI: low WMH, SPPB≤10, n=12). Graph theory-based methods were used to characterize brain networks and compare the four groups. At baseline, the somatomotor cortex community structure (SMC-CS) was less consistent in EI (p=0.05) and UI (p=0.23) compared to EH. The EI (mean=1.25, p=0.003) and UI (mean=1.57, p=0.001) significantly improved their SPPB scores following the intervention. Although both groups had equivalent SPPB scores, SMC-CS was less consistent in the UH than EH (p=0.16). However, UH displayed a significant (p=0.004) increase in second-order connections to the precuneus compared to EH. These data suggest that studying brain networks could improve the understanding of the development of mobility disability and the CNS contributions to mobility independent of white matter disease.

scholarly journals Miswiring the brain: Human prenatal Δ9-tetrahydrocannabinol use associated with altered fetal hippocampal brain network connectivity

2021 ◽  
pp. 101000
Author(s):  
Moriah E. Thomason ◽  
Ava C. Palopoli ◽  
Nicki N. Jariwala ◽  
Denise M. Werchan ◽  
Alan Chen ◽  
...  
Keyword(s):  
Network Connectivity ◽  
Brain Network ◽  
Brain Network Connectivity ◽  
The Brain

scholarly journals Altered Brain Network Connectivity as a Potential Endophenotype of Schizophrenia

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Peng Li ◽  
Teng-Teng Fan ◽  
Rong-Jiang Zhao ◽  
Ying Han ◽  
Le Shi ◽  
...  
Keyword(s):  
Network Connectivity ◽  
Brain Network ◽  
Brain Network Connectivity

scholarly journals Childhood Trauma Associated With Abnormal Resting-State Brain Network Connectivity in First-Episode Schizophrenia Patients

2020 ◽  
Author(s):  
Xiangyun Long ◽  
Jiaxin Wu ◽  
Fei Liu ◽  
Ansi Qi ◽  
Nan Huang ◽  
...  
Keyword(s):  
Childhood Trauma ◽  
Resting State ◽  
Network Connectivity ◽  
Brain Network ◽  
Traumatic Experiences ◽  
First Episode ◽  
Resting State Networks ◽  
Attention Network ◽  
Brain Network Connectivity ◽  
First Episode Schizophrenia

Abstract Childhood trauma is a central risk factor for schizophrenia. We explored the correlation between early traumatic experiences and the functional connectivity of resting-state networks. This fMRI study included 28 first-episode schizophrenia patients and 27 healthy controls. In first-episode schizophrenia patients, higher levels of childhood trauma associated with abnormal connections of resting-state networks, and these anomalies distributed among task-positive networks (i.e., ventral attention network, dorsal-ventral attention network and frontal-parietal network), and sensory networks (i.e., visual network and auditory network). These findings mentioned that childhood traumatic experiences may impact resting-state network connectivity in adulthood, mainly involving systems related to attention and execution control.

scholarly journals Reduced DNA Methylation of the Oxytocin Receptor Gene Is Associated With Anhedonia-Asociality in Women With Recent-Onset Schizophrenia and Ultra-high Risk for Psychosis

2019 ◽  
Vol 45 (6) ◽  
pp. 1279-1290 ◽  
Author(s):  
Minji Bang ◽  
Jee In Kang ◽  
Se Joo Kim ◽  
Jin Young Park ◽  
Kyung Ran Kim ◽  
...  
Keyword(s):  
Negative Symptoms ◽  
Receptor Gene ◽  
Network Connectivity ◽  
Inverse Correlation ◽  
Brain Network ◽  
Oxytocin Receptor ◽  
Epigenetic Alterations ◽  
Oxytocin Receptor Gene ◽  
Recent Onset ◽  
Brain Network Connectivity

Abstract Negative symptoms are recognized as a fundamental feature of schizophrenia throughout the disease course. Epigenetic alterations in the oxytocin receptor gene (OXTR) may be a key mechanism involved in social-emotional disturbances of schizophrenia. Here, we investigated OXTR methylation and its association with clinical and brain network connectivity phenotypes of negative symptoms, particularly anhedonia-asociality, in individuals with recent-onset schizophrenia (ROS) and at ultrahigh risk (UHR) for psychosis. Sixty-four ROS (39 women), 46 UHR (19 women), and 98 healthy individuals (52 women) participated in this study. OXTR methylation was quantified using the pyrosequencing method. A subset of participants (16 ROS, 23 UHR, and 33 healthy controls [HCs]) underwent a 5.5-minute resting-state functional magnetic resonance imaging to determine the relationship between OXTR methylation and the striatal-amygdala network functional connectivity (FC) underlying anhedonia-asociality. Both men and women with ROS and UHR showed significantly decreased OXTR methylation compared to HCs. In women with ROS and UHR, decreased OXTR methylation showed a significant correlation with increased anhedonia-asociality. FC of the striatal-amygdala network, positively associated with the severity of anhedonia-asociality, showed an inverse correlation with OXTR methylation. This study suggests that epigenetic alterations of OXTR, which can be detected before the development of full-blown psychosis, confer susceptibility to schizophrenia and play a crucial role in the manifestation of anhedonia-asociality, particularly in women.

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