Seitz Aaron R, Nanez Jose E, Holloway Steven R, Watanabe Takeo
Department of Neurobiology, Harvard Medical School, 220 Longwood Ave, Boston, MA 02115, USA.
Hum Psychopharmacol. 2005 Jan;20(1):55-60. doi: 10.1002/hup.661.
Studies of psychopharmacology often use the test of the critical flicker fusion (CFF) threshold as a measure of total information processing. It is true that studies of practice effects have shown that CFF thresholds are remarkably stable within and across multiple days of testing. This study confirms that subjects who undergo CFF testing on sequential days have stable thresholds, but also demonstrates that in subjects who conducted 1 h of motion training per day for 9 days the CFF thresholds increased by an average of 30%. The results show that the perceptual experience of subjects can dramatically alter the CFF thresholds and should be an important consideration in the control of studies employing the CFF as a measure.
精神药理学研究经常使用临界闪烁融合（CFF）阈值测试作为总信息处理的一种度量。实践效应研究表明，在多天测试期间及不同天之间，CFF阈值非常稳定，这是事实。本研究证实，连续几天接受CFF测试的受试者具有稳定的阈值，但也表明，在每天进行1小时运动训练，持续9天的受试者中，CFF阈值平均提高了30%。结果表明，受试者的感知体验可显著改变CFF阈值，在采用CFF作为度量的研究控制中应予以重要考虑。
