that
is, the increase of the MMN amplitude as a function of the preceding
number of standards. The rapid modulation
to repeated features, as well as the different adaptation sensitivity
over multiple time-scales suggests that RP might be a better human correlate of the
animal SSA than MMN. However, it is worth noting that RP represents
both an increase of P50 and P2, and a decrease of N1 components of
the auditory ERP, thus it is likely to involve both RS and RE in different
time-intervals. In addition, the resistance towards neural fatigue
shown at P50 and P2 components, and the stable scalp distribution
occurring across different experimental conditions suggest that RP originates from a combined modulation
of the ERPs involved at different time-intervals, rather than from a
separate overlaying slow ERP component Therefore, it can be assumed that different
generators might exist encoding different levels of acoustic regularity in
different stages of the processing hierarchy
thatis, the increase of the MMN amplitude as a function of the precedingnumber of standards. The rapid modulationto repeated features, as well as the different adaptation sensitivityover multiple time-scales suggests that RP might be a better human correlate of theanimal SSA than MMN. However, it is worth noting that RP representsboth an increase of P50 and P2, and a decrease of N1 components ofthe auditory ERP, thus it is likely to involve both RS and RE in differenttime-intervals. In addition, the resistance towards neural fatigueshown at P50 and P2 components, and the stable scalp distributionoccurring across different experimental conditions suggest that RP originates from a combined modulationof the ERPs involved at different time-intervals, rather than from aseparate overlaying slow ERP component Therefore, it can be assumed that differentgenerators might exist encoding different levels of acoustic regularity indifferent stages of the processing hierarchy
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