RETRACTED ARTICLE: Neural auditory intensity discrimination during naturalistic listening: a brain decoding study.

摘要: Neural discrimination of auditory intensity is one the fundamental questions in human perception. Human neuroimaging studies have demonstrated specific neural activations during tasks. The detailed functional anatomy, however, remains elusive. Most existing examined entire cortex as a whole, neglecting potential differentiation within cortex. Moreover, these previous results based on controlled stimuli might not necessarily extend to mechanism natural processing. In this study, we propose novel brain decoding method examine encoding naturalistic experience. Here, used publically available dataset (http://studyforrest.org) which high resolution magnetic resonance imaging (fMRI) was acquired when participants freely listened audio-version movie “Forrest Gump”. We found sensitivity and accuracy critically depend divergences levels, yielding sigmoidal relationship. Furthermore, anatomical subdivisions revealed great diversity lateralization discrimination. While bilateral were observed primary cortex, enhanced left-lateralization effects shown inferior frontal gyrus, anterior middle temporal gyrus temporal-occipital junction. Our findings underscore value paradigms mapping processing brain: paradigm contains enriched complex sounds, only improve ecological validity but also alleviate discrepancies caused by differences stimulus types task designs studies. multidisciplinary methodology developed here provides an analytical framework for studying stimuli.