Monday, October 15, 2007

Imagery by Ear or Eye

Here's a study that highlights the trouble with thinking about simple classifications of visual, auditory, or kinesthetic learners. Whether we read or listen to words that have strong images, the intraparietal sulcus or IPS seems to be an important brain area to be activated.

Images, like the IPS, are very multimodal, incorporating visual pictures, sound, sense of space, and movement. The graphs below show that whether strong image-evoking words were read or heard, the left IPS became quite active.

The intraparietal sulci (right and left) are very cross-modal and interestingly implicated in some of the dyslexia-plus traits such as dyspraxia / motor planning difficulties, dyscalculia / impaired number sense, and verbal short term memory.

Because in crossmodal areas, different senses and motor plans work together, it may be easy to imagine that its not hard to disrupt sophisticated functioning in the IPS. On the other hand, it also might suggest that remediation or integrative training that improves the functioning of the IPS could have many positive effects on learning, sensory processing, motor planning, and imagination or imagery.

BTW, it looks as if we will be traveling down to LA at the end of the month to see some docs for our daughter at UCLA, we'll take a brief blog break at the end of the month, but God willing will be back in November. Thank you for your prayers and best wishes. Also another nice surprise because we're driving is that we'll be able to speak at The Nueva School's Gifted Learning Conference on October 26th after all! Please say hello if you see us -

Imagery fMRI - Listening vs. Seeing
Praxis and IPS
IPS and Verbal Working Memory
IPS and Dyscalculia / Math Disability
IPS and Crossmodal Space and Attention

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