Related Experiment Videos
Reversing spoken items--mind twisting not tongue twisting
Mary Rudner1, Jerker Rönnberg, Kenneth Hugdahl
1Department of Behavioural Sciences, The Swedish Institute for Disability Research, Linköpings universitet, S-581 83 Linköping, Sweden. marru@ibv.liu.se
Brain and Language
|December 8, 2004
Summary
This fMRI study reveals that reversing spoken words involves brain regions similar to visuospatial tasks. Manipulating auditory imagery, like word reversal, engages parietal and frontal cortices, linking language and mental imagery.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Psycholinguistics
Background:
- Auditory imagery manipulation is crucial for language processing.
- Understanding the neural basis of complex auditory tasks is essential.
Purpose of the Study:
- To investigate the neural correlates of manipulating auditory imagery under demanding conditions.
- To explore the brain mechanisms underlying word reversal and rhyme judgment tasks.
Main Methods:
- Functional magnetic resonance imaging (fMRI) was used with 12 participants.
- Two tasks were employed: word reversal and rhyme judgment, using natural speech stimuli.
- Analysis involved region of interest (ROI) based small volume corrections.
Main Results:
- Both tasks activated the left anterior superior temporal gyrus, associated with auditory perception.
- Left inferior frontal gyrus engagement was observed, particularly with ROI corrections, suggesting a minor role for phonological segmentation.
- Word reversal, compared to rhyme judgment, uniquely activated bilateral parietal lobes and right inferior frontal cortex.
Conclusions:
- Dynamic manipulation of auditory imagery in word reversal recruits brain areas similar to visuospatial working memory and mental rotation.
- This suggests a connection between language processing and the manipulation of mental imagery.
- Auditory imagery manipulation, such as reversing spoken words, is a cognitive process involving 'mind twisting' rather than just articulation.