We presented a train of 400 stimuli containing both frequencies in a pseudo-random order at a specific repetition rate.
The only alternative interpretation would be to view the positivity as a memory-based deviance effect including the possibility that specific repetition or change patterns among vowels were memorized.
To ensure the progressive nature of the training program, subjects will be encouraged to work past the specific repetition maximums (RMs) prescribed.
It's very interesting to go around the gallery, thinking about the connections among the various works: the shifting role of drawing; echoes of subject matter or color; or weirdly specific repetitions, like the recurring arms or armlike forms in several works.
Alternatively, if the limit halves (∼189 ms, i.e. repetition needs to be twice as rapid as in Experiment 1), the temporal limit is dependent on the eye-specific repetition period of a pattern.
We found no evidence for either word or picture-specific repetition suppression in our LvOT region of interest or any other brain region (P > 0.05 corrected for multiple comparisons across the whole brain).
And finally, we also contrasted AV-NAT-CON (POST) > AV-NAT-CON (PRE) in order to control for stimulus-specific repetition effects regarding the untrained, but still repeated natural material.
To establish data quality and compare the expression levels between the Rt24.2 and Rt2472 strains, additional analyses were performed using cummeRbund (strain-specific repetition similarity calculated using a dendrogram with the Jensen-Shannon distance, distribution of FPKM values between the strains and between repetitions for an individual strain tested).
The finding of auditory-specific repetition suppression in the mid-anterior STG/STS is consistent with this region playing a role in the perception of acoustic phonetic features and may be akin to the presemantic auditory subsystem identified by Schacter and Church (1992) in the context of implicit memory paradigms.
Finally, when contrasting AV-NAT-CON-POST versus PRE (Fig. 6 B ) in order to control for stimulus-specific repetition effects, significant activations (t(17) = 3.25; P < 0.005, uncorrected) were only found in a left lateral-occipital region (POST > PRE; orange-colored region in Fig. 6 B ) and bilateral medial occipital regions (POST < PRE; blue-colored regions).
By means of volumetric source analysis we located stimulus domain-specific iGBA repetition suppression effects (60 90 Hz) in temporal, parietal, and occipital areas of the human cortex.
