Memory for timing visual and auditory signals in albino and pigmented rats
Memory for timing visual and auditory signals in albino and pigmented rats
复制标题
DOI：
10.1037/0097-7403.31.1.18
复制
发表时间：
2005-01-01
期刊：
影响因子：
--
通讯作者：
Meck, WH
中科院分区：
文献类型：
--
作者：
Buhusi, CV;Perera, D;Meck, WH
作者假设，在定时信号的空隙期间，在空隙前间隔期间积累的时间以与空隙感知的显著程度成正比的速度衰减，受感官敏锐度和信号强度的影响。在对视觉信号进行计时时，白化(Spraogue-Dawley)大鼠。它们的视力较差，停止计时，与间隙持续时间无关，而视力良好的有色素(长埃文斯)大鼠，在短间隙时停止计时，但在长间隙时重新计时。有色素的老鼠在低强度视觉信号的间隙停止计时，在高强度视觉信号间隙后重新计时。这表明，在间隔过程中，对时间的记忆可能通过注意机制随着间隔的显著程度而不同。
The authors hypothesized that during a gap in a timed signal, the time accumulated during the pregap interval decays at a rate proportional to the perceived salience of the gap, influenced by sensory acuity and signal intensity. When timing visual signals, albino (Sprague-Dawley) rats. which have poor visual acuity, stopped timing irrespective of gap duration, whereas pigmented (Long-Evans) rats, which have good visual acuity, stopped timing for short gaps but reset timing for long gaps. Pigmented rats stopped timing during a gap in a low-intensity visual signal and reset after a gap in a high-intensity visual signal. suggesting that memory for time in the gap procedure varies with the perceived salience of the gap, possibly through an attentional mechanism.