Implicit sequence learning: Inter-stimulus interval and subjective experience
In this research of implicit sequence learning we examined the difference between two groups, using constant inter-stimulus interval (ISI, 770 ms) and the standard, constant response-stimulus interval (RSI, 170 ms) in the Alternating Serial Reaction Time (ASRT) task (Howard & Howard, 1997). Moreover, we examined the subjective experience of participants during the task with three short questions about three factors: boredom, anxiety, and whether the participant concentrated on accuracy or rather on speed. In case of constant response-stimulus interval, the inter-stimulus interval were shorter, the responses were faster, but there was no difference in accuracy or learning. In the case of constant inter-stimulus interval, we found a correlation between learning and accuracy, while this correlation was not present in the case of constant response-stimulus interval. The participants got increasingly bored, their anxiety did not change, but they were concentrating more and more on speed – this latter tendency was significantly diminished in the case of constant inter-stimulus interval. In respect of these factors we did not find any other difference between the two groups. In the case of constant response-stimulus interval we found a significant negative correlation between boredom and learning, while this correlation was not found in the case of constant inter-stimulus interval. No other correlations were found between learning and subjective factors.