Task-dependent cortical activations during selective attention to audiovisual speech
| Autor: | Artturi Ylinen, Patrik Wikman, Miika Leminen, Kimmo Alho |
|---|---|
| Přispěvatelé: | University of Helsinki, Georgetown University, Helsinki University Hospital, Department of Neuroscience and Biomedical Engineering, Aalto-yliopisto, Aalto University, Doctoral Programme Brain & Mind, Attention and Memory Networks Research Group, Department of Psychology and Logopedics, Medicum, Helsinki University Hospital Area, Mind and Matter, Kimmo Alho, Doctoral Programme in Human Behaviour |
| Rok vydání: | 2021 |
| Předmět: |
Male
Selective auditory attention NEURAL BASIS SPOKEN LANGUAGE Functional magnetic resonance imaging Audiovisual speech processing Somatosensory system Visual control Task (project management) 0302 clinical medicine VENTRAL PREMOTOR CORTEX Attention MOTOR CORTEX Cerebral Cortex medicine.diagnostic_test General Neuroscience 05 social sciences Magnetic Resonance Imaging FMRI Task-dependent effects Auditory Perception Visual Perception Female Psychology psychological phenomena and processes Cognitive psychology Adult 515 Psychology behavioral disciplines and activities 050105 experimental psychology Selective attention to speech 03 medical and health sciences Young Adult Social cognition medicine otorhinolaryngologic diseases Humans 0501 psychology and cognitive sciences Molecular Biology PERCEPTION MEMORY Speech processing REPRESENTATIONS Acoustic Stimulation Orbitofrontal cortex AUDITORY CORTEX Neurology (clinical) 030217 neurology & neurosurgery Photic Stimulation Developmental Biology |
| Zdroj: | Brain research. 1775 |
| ISSN: | 1872-6240 |
| Popis: | Funding Information: This work received funding from the Academy of Finland (Grant #297848, “Modulation of brain activity patterns during selective attention to speech”, 2016–2021) and the Emil Aaltonen Foundation. The funders had no role in study design, collection, analysis, or interpretation of data, or in the writing of the article. Publisher Copyright: © 2021 The Author(s) Selective listening to speech depends on widespread networks of the brain, but how the involvement of different neural systems in speech processing is affected by factors such as the task performed by a listener and speech intelligibility remains poorly understood. We used functional magnetic resonance imaging to systematically examine the effects that performing different tasks has on neural activations during selective attention to continuous audiovisual speech in the presence of task-irrelevant speech. Participants viewed audiovisual dialogues and attended either to the semantic or the phonological content of speech, or ignored speech altogether and performed a visual control task. The tasks were factorially combined with good and poor auditory and visual speech qualities. Selective attention to speech engaged superior temporal regions and the left inferior frontal gyrus regardless of the task. Frontoparietal regions implicated in selective auditory attention to simple sounds (e.g., tones, syllables) were not engaged by the semantic task, suggesting that this network may not be not as crucial when attending to continuous speech. The medial orbitofrontal cortex, implicated in social cognition, was most activated by the semantic task. Activity levels during the phonological task in the left prefrontal, premotor, and secondary somatosensory regions had a distinct temporal profile as well as the highest overall activity, possibly relating to the role of the dorsal speech processing stream in sub-lexical processing. Our results demonstrate that the task type influences neural activations during selective attention to speech, and emphasize the importance of ecologically valid experimental designs. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect