脑功能偏侧化
神经病理性疼痛
认知
焦虑
心理学
慢性疼痛
前额叶皮质
SNi公司
冲动性
听力学
神经科学
医学
发展心理学
精神科
化学
水解
生物化学
酸水解
作者
Hugo Leite‐Almeida,João José Cerqueira,Hong Wang,Nuno Ribeiro Costa,Helena Anjos-Martins,Nuno Sousa,Antti Pertovaara,Armando Almeida
出处
期刊:Pain
[Ovid Technologies (Wolters Kluwer)]
日期:2012-11-01
卷期号:153 (11): 2218-2225
被引量:76
标识
DOI:10.1016/j.pain.2012.07.007
摘要
Summary It has long been a matter of dispute whether some pain-related phenomena occur with a lateralization bias. We demonstrate that in a model of chronic neuropathic pain, left-sided pain is detrimental to emotional behaviour, whereas right-sided pain affects cognitive function, particularly in prefrontal cortex–dependent tasks. Chronic pain is frequently accompanied by a deterioration of emotional behavior and cognitive function. A small number of studies in humans concluded that pain-associated negative affect is more pronounced when pain is localized in the left side of the body. It has been suggested that such side bias results from cortical function lateralization. It is not known, however, if other pain-associated behavioral changes are differentially affected by left- and right-sided pain. To test this hypothesis, the performance of rats with a unilateral spared nerve injury neuropathy installed in the left (SNI-L) or in the right (SNI-R) side was compared in anxiety (elevated-plus maze) and cognitive (spatial working and reference memory, attentional set-shifting task, and delay-to-signal impulsivity task) behavioral paradigms. Results show that SNI-L animals presented an increased anxiety-like profile while maintaining preserved cognitive function. On the contrary, SNI-R animals presented cognitive deficits in all tasks except in the reference memory, but displayed a normal anxiety-like profile. Our results show that left- and right-sided neuropathic pain differentially affects emotional behavior, which is in accordance with previous observations in human subjects, both in experimentally induced pain and in chronic pain conditions. Additionally, our results demonstrate that the cognitive function deterioration associated with unilateral neuropathic chronic pain conditions is also differentially affected.
科研通智能强力驱动
Strongly Powered by AbleSci AI