扣带回(脑)
心理学
楔前
脑岛
功能磁共振成像
神经科学
岛叶皮质
感觉系统
体感系统
中央后回
后扣带
眶额皮质
辅助电机区
气味
听力学
前额叶皮质
认知
医学
磁共振成像
部分各向异性
放射科
白质
作者
Benito de Celis Alonso,Silvia Hidalgo-Tobón,Eduardo Barragán-Pérez,Eduardo Castro‐Sierra,Pilar Dies-Suárez,Julio F. García,Eduardo Moreno Barbosa,Óscar Arias-Carrión
出处
期刊:Cns & Neurological Disorders-drug Targets
[Bentham Science]
日期:2019-02-21
卷期号:18 (1): 63-77
被引量:8
标识
DOI:10.2174/1871527317666181105105113
摘要
Impulsivity is a complex multi-dimensional combination of behaviors which include: ineffective impulse control, premature decision-making and inability to delay gratification.The aim of this work was to explore how food odor perception and its emotional value is affected in impulsive children.Here we compared two cohorts of impulsive and control children with ages between 10 and 16 years. Both groups underwent a functional magnetic resonance imaging experiment, in which foodrelated odor-cues were presented to all of them.Differences in regions of blood oxygen level dependent activation, as well as connectivity, were calculated. Activations were significant for all odors in the impulsive group in the temporal lobe, cerebellum, supplementary motor area, frontal cortex, medial cingulate cortex, insula, precuneus, precentral, para-hippocampal and calcarine cortices.Connectivity results showed that the expected emotional reward, based on odor perceived and processed in temporal lobes, was the main cue driving responses of impulsive children. This was followed by self-consciousness, the sensation of interaction with the surroundings and feelings of comfort and happiness, modulated by the precuneus together with somatosensory cortex and cingulum. Furthermore, reduced connectivity to frontal areas as well as to other sensory integration areas (piriform cortex), combined to show different sensory processing strategies for olfactory emotional cues in impulsive children. Finally, we hypothesize that the cerebellum plays a pivotal role in modulating decision-making for impulsive children.
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