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We used a flexible factorial modelling procedure for second level analyses in a 2*2*2 factorial design, investigating the factors stimulus type (face/place), familiarity (familiar/unfamiliar), and group (old/young).
The resulting contrast images were then used in second level analyses.
Key second level analyses investigated group differences specifically associated with stopping versus shifting.
All of these second level analyses were conducted using first level SM contrast images as dependent measures.
Individual contrast images (erotic vs. neutral images) were computed separately for the blocked and event-related design and were then included in second level analyses.
Surprisingly the authors ignore these second level analyses and use Xcorr, and MQscore as the output of these two tools, respectively.
Similar(52)
First level analyses mainly focused on determining community composition and species population dynamics.
In the first level, analyses were stratified into two subgroups based on muscle location: neck shoulder or forearm.
Given the similar design of first level analyses, this 2 step approach is equivalent to a mixed effects analyses incorporating within and between subjects variance.
In the first level analyses, categorical contrasts were generated for POS versus SUBTR, NEG vs. SUBTR, NEUTR versus SUBTR, REST versus SUBTR.
The first level analyses included the four experimental conditions (sequential words, sequential letterstrings, simultaneous words, simultaneous letterstrings) and additional conditions for incorrect trials.
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CEO of Professional Science Editing for Scientists @ prosciediting.com