Abstract
We conducted an experiment to investigate recognition of Hebb 9 digit series. Each digit was presented one at a time and the duration of presentation was any one of 200, 600, or 1200ms. After the presentation of ninth digit, a probe - 3digit series - was presented to judge whether it was included in 9 digit series or not. Results showed that the hit rates of probes decreased with increased the time difference between presentation of the probe and presentation of the first digit of the probe during learning. This result conforms to the prediction of the time ratio model of serial recall in short-term memory(Brown, Neath, & Chater, 2007). Moreover, we found that hit rates raised with increased length of duration. We discuss an interaction between the time ratio and the duration.
