Using our database of MRI
structural images and behavioural assessments from 120 Stroke patients, we
have:
- identified
six discrete left hemisphere brain regions where damage has a high
probability of causing persistent speech production difficulties
- dissociated
brain regions where damage causes different types of speech production
difficulties.
We are now in the process of
replicating these findings with a different set of over 100 patients. If
successful, then our findings will have important relevance for clinicians who
can use the results to inform the patient and their carers of the likelihood
that speech production difficulties will recover or persist.
Using our database of fMRI
language activation in 40 Stroke patients, we have:
- identified
a new neural pathway that can support reading when the left
occipito-temporal cortex is damaged. These findings have implications for understanding the degree to
which a patient will recovery following left occipito-temporal damage.
- dissociated
different right hemisphere neural systems that can compensate for left
frontal damage
Using our database of fMRI
language activation in 20 Patients with brain tumours, we have:
- dissociated
the effects of parietal tumours and their removal on speech production
systems.
Critically, none of the findings summarized above would have
been possible without JSMF funding that supported both data acquisition and
important methodological developments In brief, JSMF funding has also allowed
us to:
- set up
a database of behavioural, structural and functional imaging data
- develop
methods to automate the identification of brain regions with abnormal
structure and function
- develop
methods to characterize sources of variability in normal and patient brain
structure and function.