反复发作抑郁症患者前扣带回额叶执行功能的磁源性影像研究  被引量:23

The fronto-cingulate executive function in recurrent depression revealed by the magnetic source imaging

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作  者:汤浩[1] 韩颖琳[1] 韩莉[1] 江海腾[3] 卢青[3] 姚志剑 

机构地区:[1]南京医科大学附属脯科医院精神科,南京210029 [2]南京神经精神病学研究所 [3]东南大学学习科学研究中心

出  处:《中华行为医学与脑科学杂志》2011年第11期1005-1007,共3页Chinese Journal of Behavioral Medicine and Brain Science

基  金:国家自然科学基金(30900356,81071135);南京市医学科技发展项目(ZKX09037)

摘  要:目的观察反复发作抑郁症患者前扣带回、额叶执行功能在时间空间序列的变化特征。方法18例反复发作抑郁症患苦及21私年龄、性别、受教育年匹配的健康对照入组,利用脑磁图检测受试者在完成Stroop字色干扰测试时前扣带叫、额叶功能的实时改变。结果1.与对照绀相比,患者组完成Stroop字色干扰测试时激洒增强的脑区依次为(t代表激活强发):(1)100~200ms:右前扣带回(t=1.81)、双侧额内侧回(t=1.91,t=1.86)、左额上回(t=1.79)、有额中回(t=1.82)、右额下回(t=1.82)(2)200~300ms:左前扣带回(t=1.82);(3)250~350m:左前扣带网(t=2.67)、左额内侧回(t=2.43)、左额下回(t=1.91);(4)300~400ms:左前扣带回(t=2.26)、双侧额下回(t=1.97,t=2.66)、左额内侧回(t=2.35);(5)350—450ms:左前扣带回(t=2.02)、左锨内侧回(t=2.00)、双侧额下回(t=1.74,t=1.78);(6)400—500ms:左前扣带回(t=2.01)、左额内侧回(t=1.97);2.与对照组相比,患者组完成Slroop字色干扰测试时激活减弱的脑区为:200~300ms定额中回(t=1.79)、左额上回(t=1.76)。结论反复发作抑郁症患者前扣带回、额叶脑区存在时间和空间序列双层次的激活紊乱。Objective To investigate the variation of executive function of fronto-eingulate eortex in spario-temporal sequence in recurrent depressed patients. Methods Eighteen recurrent depressed patients and twenty-one age- , gender- and education- matched healthy enntrols were involved in the Stronp word-color interference test to detect the executive function of anterior cingulate and prefrontal regions by magnetoencephaloraphy scanning. Results 1. Compared to healthy controls, tile inereased activation of brain regions in depressed patients during different time periods were separately shown as follows( 1 represents activation strength ) :( 1 )100 -200 ms: the right anterior cingulate gyrus ( t = 1.81 ,T value means activation strength) , the bilateral medial frontal gyrus ( t = 1.91, t = 1.86 ), the left superior frontal gyrus( t = 1.79 ), the right middle fi'ontal gyrus ( t= 1.82 ), the right inferior frontal gyms( t= 1.82). (2)200 -300ms: the left anterior eingulate gyrus( t = 1.82). (3)250 -350ms: the left anterior cingulate gyrus ( t = 2.67 ) , the left medial frontal gyrus ( t = 2.43 ) , the left inferior frontal gyrus ( t = 1.91 ). (4)300 -400ms: the left anterior frontal gyrus(t=2.26) ,the bilateral inferior gyrus( t= 1.97, t=2. 66) , the left medial frontal gyrus ( t = 2.35 ). ( 5 ) 350 - 450ms : the left anterior cingulate gyrus ( t = 2.02 ) , the left medial frontal gyrus ( t = 2.00) , the bilateral inferior fiontal gyrus ( t = 1.74, t = 1.78 ). ( 6 ) 400 - 500 ms : the left anterior eingulate gyrus( t = 2.01 ) ,the left medial frontal gyrus ( t = 1.97 ). 2. Compared to healthy controls,patients showed decreased activation in the left middle frontal gyrus ( t = 1.79) and the left superior gyrus( t = 1.76) in 200 - 300 ms. Conclusion Executive dysfunction is reflected in depressed patients with the activation inefficiency in anterior cingulate and prefrontal regions in spatio-temporal sequen

关 键 词:抑郁症 执行功能 脑磁图 扣带回 

分 类 号:R749.4[医药卫生—神经病学与精神病学]

 

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