Preclinical data show that, compared to no exposure, prenatal cocaine exposure (PCE) has age-dependent effects on social interaction and aggression. The aim of this clinical study was to determine how heavy/persistent PCE--after controlling for other prenatal drug exposures, sex and postnatal factors--predicts behavioral sensitivity to provocation (i.e., reactive aggression) using a well-validated human laboratory model of aggression. African American teens (mean=14.2 years old) with histories of heavy/persistent PCE (maternal cocaine use ≥ 2 times/week during pregnancy, or positive maternal or infant urine/meconium test at delivery; n=86) or none/some exposure (NON: maternal cocaine use < 2 times/week during pregnancy; n=330) completed the Point Subtraction Aggression Paradigm. In this task, teens competed in a computer game against a fictitious opponent. There were three possible responses: (a) earn points, to exchange for money later; or (b) "aggress" against the fictitious opponent by subtracting their points; or (c) escape temporarily from point subtraction perpetrated by the fictitious opponent. The PCE group responded significantly more frequently on the escape option than the NON group, but did not differ in aggressive or money-earning responses. These data indicate that PCE-teens provoked with a social stressor exhibit a behavioral preference for escape (negative reinforcement) than for aggressive (retaliatory) or appetitive (point- or money-reinforced) responses. These findings are consistent with preclinical data showing that social provocation of adolescent or young adult offspring after PCE is associated with greater escape behavior, inferring greater submission, social withdrawal, or anxiety, as opposed to aggressive behavior.

译文

临床前数据表明,与未暴露相比,产前可卡因暴露 (PCE) 对社交互动和攻击具有年龄依赖性。这项临床研究的目的是确定在控制其他产前药物暴露,性别和产后因素后,重/持续的PCE如何使用经过充分验证的人类实验室模型预测对挑衅 (即反应性侵略) 的行为敏感性攻击非裔美国青少年 (平均 = 14.2岁) 有重度/持续性PCE史 (孕妇在怀孕期间使用可卡因 ≥ 2次/周,或分娩时孕妇或婴儿尿液/胎粪试验呈阳性; n = 86) 或无/部分暴露 (非: 孕妇在怀孕期间使用可卡因 <2次/周; n = 330) 完成了点减法攻击范例。在此任务中,青少年在计算机游戏中与虚拟对手竞争。有三种可能的回应 :( a) 赚取积分,以后再换钱; 或 (b) 通过减去虚拟对手的积分来 “攻击” 虚拟对手; 或 (c) 暂时从虚拟对手进行的点减法中逃脱。与非PCE组相比,PCE组对escape选项的反应频率明显更高,但在积极或赚钱的反应上没有差异。这些数据表明,受到社会压力刺激的PCE青少年表现出对逃避 (负强化) 的行为偏好,而不是对侵略性 (报复性) 或食欲 (点或金钱强化) 反应的行为偏好。这些发现与临床前数据一致,该数据表明,PCE后青少年或年轻成年后代的社交挑衅与更大的逃避行为有关,推断出更大的屈服,社交退缩或焦虑,而不是攻击行为。

+1
+2
100研值 100研值 ¥99课程
检索文献一次
下载文献一次

去下载>

成功解锁2个技能,为你点赞

《SCI写作十大必备语法》
解决你的SCI语法难题!

技能熟练度+1

视频课《玩转文献检索》
让你成为检索达人!

恭喜完成新手挑战

手机微信扫一扫,添加好友领取

免费领《Endnote文献管理工具+教程》

微信扫码, 免费领取

手机登录

获取验证码
登录