Ortega L, Lopez F, Church R M
Facultad de Psicología, Universidad Nacional Autónoma de México, Distrito Federal, Mexico.
Behav Processes. 2009 Jun;81(2):270-3. doi: 10.1016/j.beproc.2009.02.009. Epub 2009 Mar 9.
The modality of a stimulus and its intermittency affect time estimation. The present experiment explores the effect of a combination of modality and intermittency, and its implications for internal clock explanations. Twenty-four participants were tested on a temporal bisection task with durations of 200-800ms. Durations were signaled by visual steady stimuli, auditory steady stimuli, visual flickering stimuli, and auditory clicks. Psychophysical functions and bisection points indicated that the durations of visual steady stimuli were classified as shorter and more variable than the durations signaled by the auditory stimuli (steady and clicks), and that the durations of the visual flickering stimuli were classified as longer than the durations signaled by the auditory stimuli (steady and clicks). An interpretation of the results is that there are different speeds for the internal clock, which are mediated by the perceptual features of the stimuli timed, such as differences in time of processing.
刺激的模态及其间歇性会影响时间估计。本实验探讨了模态和间歇性相结合的影响及其对内部时钟解释的意义。24名参与者在持续时间为200 - 800毫秒的时间二等分任务中接受测试。持续时间由视觉稳定刺激、听觉稳定刺激、视觉闪烁刺激和听觉滴答声表示。心理物理学函数和二等分点表明，视觉稳定刺激的持续时间被归类为比听觉刺激（稳定和滴答声）表示的持续时间更短且更具变化性，并且视觉闪烁刺激的持续时间被归类为比听觉刺激（稳定和滴答声）表示的持续时间更长。对结果的一种解释是，内部时钟存在不同的速度，这由所计时刺激的感知特征介导，例如处理时间的差异。
