心理学报
心理學報
심이학보
CHINESE JOURNAL OF PSYCHOLOGY
2013年
4期
438-445
,共8页
赵庆柏%张小菲%隋丹妮%周治金%陈其才%周宗奎
趙慶柏%張小菲%隋丹妮%週治金%陳其纔%週宗奎
조경백%장소비%수단니%주치금%진기재%주종규
表象产生%性别差异%事件相关电位%小世界网络%平均路径长度
錶象產生%性彆差異%事件相關電位%小世界網絡%平均路徑長度
표상산생%성별차이%사건상관전위%소세계망락%평균로경장도
image generation%sex difference%event-related potential%small-world network%average path length
行为研究发现女性具有更好的局部表象产生能力,但其神经基础尚不清楚.研究采用事件相关电位技术以及小世界网络分析方法,探索局部表象产生中性别差异的大脑信息加工基础.结果显示在局部表象产生中,女性行为反应较男性更快,表象产生诱发的 P300-650平均波幅更小,且大脑功能网络的平均路径长度更短.深入分析发现,反应时与脑网络的平均路径长度之间成正相关.该结果意味着低耗高效的大脑信息加工模式是女性具有更好的局部表象能力的神经基础.
行為研究髮現女性具有更好的跼部錶象產生能力,但其神經基礎尚不清楚.研究採用事件相關電位技術以及小世界網絡分析方法,探索跼部錶象產生中性彆差異的大腦信息加工基礎.結果顯示在跼部錶象產生中,女性行為反應較男性更快,錶象產生誘髮的 P300-650平均波幅更小,且大腦功能網絡的平均路徑長度更短.深入分析髮現,反應時與腦網絡的平均路徑長度之間成正相關.該結果意味著低耗高效的大腦信息加工模式是女性具有更好的跼部錶象能力的神經基礎.
행위연구발현녀성구유경호적국부표상산생능력,단기신경기출상불청초.연구채용사건상관전위기술이급소세계망락분석방법,탐색국부표상산생중성별차이적대뇌신식가공기출.결과현시재국부표상산생중,녀성행위반응교남성경쾌,표상산생유발적 P300-650평균파폭경소,차대뇌공능망락적평균로경장도경단.심입분석발현,반응시여뇌망락적평균로경장도지간성정상관.해결과의미착저모고효적대뇌신식가공모식시녀성구유경호적국부표상능력적신경기출.
@@@@Previous behavioral studies reported that females performed faster than males in generating the local details of image. However, the neural basis of behavioral sex difference during local image generation is not clear. Generally, reaction time is considered as an index of speed of brain information processing. And the small-world topology of functional brain connectivity could provide high global and local efficiency of parallel information processing. Therefore, it was speculated that stronger small-world effect underlay females’ faster reaction time during local image generation. @@@@Total 28 people (14 males and 14 females) participated in the experiment and they were informed to observe a set of experimental pictures and then generate corresponding mental image to the global or local cue. The reaction time and event-related potential were recorded. The behavioral and electrophysiological data obtained in the experiment were analyzed by ANOVA and small-world measures, respectively. @@@@Results showed that females had the shorter reaction time, the smaller P300-650 amplitude and the shorter average path length of brain network in local image generation. Additionally, there was a positive correlation between the reaction time and the average path length. @@@@The present findings suggested that the lower cost and higher efficiency of brain information processing supported the better behavioral performance.