More than just statics : Temporal dynamic changes of intrinsic brain activity in cigarette smoking

© 2021 Society for the Study of Addiction..

Smoking is companied with altered intrinsic activity of the brain measured by amplitude of low-frequency fluctuation. Evidence has revealed that human brain activity is a highly dynamic and rapidly changing system. How exactly cigarette smoking affect temporal dynamic intrinsic brain activity is not fully understood nor is it clear how smoking severity influences spontaneous brain activity. Dynamic amplitude of low-frequency fluctuation (dALFF) was used to examine the dynamic temporal variability in 93 participants (63 smokers, 30 nonsmokers). We further divided smokers into light and heavy smokers. The temporal variability in intrinsic brain activity among these groups was compared. Correlation analyses were performed between dALFF in areas showing group differences and smoking behaviour (e.g., the Fagerström Test for Nicotine Dependence [FTND] scores and pack-years). Smokers showed significantly increased dALFF in the left inferior/middle frontal gyrus, right orbitofrontal gyrus, right insula, left superior/medial frontal gyrus and right middle frontal gyrus than nonsmokers. Light smokers showed increased dALFF variability in the left prefrontal cortex. Heavy smokers showed increased dynamics in specific brain regions, including the right postcentral gyrus, right insula and left precentral gyrus. Furthermore, the temporal variability in dALFF in the left superior/medial frontal gyrus, left superior/middle frontal gyrus, right middle frontal gyrus and right insula was positively correlated with pack-years or FTND. Combined, these results suggest that smokers increase stable and persistent spontaneous brain activity in prefrontal cortex, involved impaired gold-directed action and value-based decision-making. In addition, individuals with heavier smoking severity show increased perturbance on spontaneous brain activity of perception and sensorimotor, related to increased reliance.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:26

Enthalten in:

Addiction biology - 26(2021), 6 vom: 03. Nov., Seite e13050

Sprache:

Englisch

Beteiligte Personen:

Wen, Mengmeng [VerfasserIn]
Yang, Zhengui [VerfasserIn]
Wei, Yarui [VerfasserIn]
Huang, Huiyu [VerfasserIn]
Zheng, Ruiping [VerfasserIn]
Wang, Weijian [VerfasserIn]
Gao, Xinyu [VerfasserIn]
Zhang, Mengzhe [VerfasserIn]
Fang, Keke [VerfasserIn]
Zhang, Yong [VerfasserIn]
Cheng, Jingliang [VerfasserIn]
Han, Shaoqiang [VerfasserIn]

Links:

Volltext

Themen:

Amplitude of low-frequency fluctuation (ALFF)
Dynamic
Journal Article
Research Support, Non-U.S. Gov't
Resting-state functional magnetic resonance imaging (rs-fMRI)
Severity
Smokers

Anmerkungen:

Date Completed 02.02.2022

Date Revised 02.02.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1111/adb.13050

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM326336818