P3 AND STIMULUS INCENTIVE VALUE
P3 AND STIMULUS INCENTIVE VALUE
复制标题
DOI：
10.1111/j.1469-8986.1983.tb00909.x
复制
发表时间：
1983-01-01
期刊：
影响因子：
3.7
通讯作者：
AUNON, JI
中科院分区：
文献类型：
--
作者：
BEGLEITER, H;PORJESZ, B;AUNON, JI
在 3 种不同条件下记录 2 种等概率的、与任务相关的视觉刺激（0.00 和 1.00）的事件相关电位。在基线条件下，受试者注意两种刺激并对每种刺激按下适当的按钮。在准确性/激励条件下，受试者通过在每次刺激后准确地按下适当的按钮来每次呈现 1.00 刺激时赚取 1 美元。对任何一项刺激措施的错误施压都会导致一美元的损失。在速度-准确性/激励运行中，如果受试者在 350 毫秒内准确按下正确按钮，则他们只能在 1.00 刺激下赚取 1 美元。对任一刺激的反应时间 > 350 毫秒都会导致一美元的损失。 P3 分量的幅度与具有不同激励值的等概率任务相关刺激显着不同。 P3可以反映刺激的主观动机特性。
Event-related potentials were recorded to 2 equiprobable, task-relevant visual stimuli (0.00 and 1.00) under 3 different conditions. In the baseline condition subjects attended to both stimuli and pressed the appropriate button to each stimulus. In the accuracy/incentive condition subjects earned 1 dollar each time the 1.00 stimulus was presented by accurately pressing the appropriate button after each stimulus. Incorrect presses to either stimulus resulted in the loss of a dollar. In the speed-accuracy/incentive run, subjects could only earn 1 dollar to the 1.00 stimulus if they accurately pressed the correct button within 350 ms. Reaction times > 350 ms to either stimulus resulted in the loss of a dollar. The amplitude of the P3 component was significantly different to equiprobable task-relevant stimuli with differential incentive values. P3 may reflect the subjective motivational properties of stimuli.