| |
Abstract:
Previous research has demonstrated age-related deficits in
implicit serial pattern learning using higher order sequences of
visuospatial stimuli (Curran, 1997; Howard & Howard, 1997). The
present study investigates implicit sequence learning using a
non-spatial auditory version of the alternating serial reaction
time task. Four unrelated words, each spoken by a different female
voice were presented to groups of elderly and young adults over
headphones. Participants responded by pressing one of four keys
corresponding to the word/voice stimuli over four sessions. Both
groups demonstrated reduced reaction time with practice. Younger
adults showed a significant trial type by session interaction for
both the accuracy and reaction time measures, indicating learning
of the auditory sequence. In contrast, older adults showed impaired
learning on both measures. These results parallel earlier work in
the visual modality and indicate a comparable learning deficit of
higher order auditory sequences.
This research was supported by grant R37 AG15450 from the
National Institute on Aging.
|
