Part of our pursuit in understanding reading development lies in identifying the neural brain networks used during reading activities. To do so, some of our projects make use of a brain imaging technique called Magnetic Resonance Imaging (MRI). MRI is preferred in research as it is non-invasive and is able to create highly detailed images of the brain in real-time (Hoyos et al., 2019). Unlike X-rays, MRI does not use radiation and no long-term harmful effects are implicated in MRI scans (National Neuroscience Institute, 2021). Rather, MRI has a strong magnetic field and uses magnetic pulses to capture images. Thus, it is important to remove any metallic objects (e.g., braces, jewellery, clothing with metallic materials) from your body before entering an MRI scanner.

Figure 1: Photograph of a Mock Scanner

During an MRI brain scan, you will lie down on the MRI bed that will be moved into the scanner headfirst since the brain is being scanned. A head coil may be placed over the head and acts like an antenna that receive signals emitted from your brain during the scan. Sometimes, you may get to play some games while you are in the scanner! During the scanning process, you may hear some loud knocking noises. These sounds are created due to the constant switching-on-and-off of the many magnets in the machine – you can think of them as the shutter sounds of a large camera! Earplugs or headphones are provided to protect the ears. To prevent fuzzy or blurry pictures, it is important to stay as still as possible during the scanning process. Some helpful tips to stay still could be to regulate your breathing and to wiggle your fingers and toes. If you have any concerns about the MRI scan, it is best to clarify with the on-site radiographers and researchers before you begin your scan!

Figure 2: Key rules to follow to make MRI scanning a safe and fruitful procedure.

 

Drafted by: Serena

Edited by: Michelle, Phoebe

References

Hoyos, P. M., Kim, N. Y., & Kastner, S. (2019). How is magnetic resonance imaging used to learn about the brain?. Frontiers for young minds, 7(86).https://doi.org/10.3389/frym.2019.00086

National Neuroscience Institute. (2021, January 29). Must-remember information about MRI. Singhealth.https://www.nni.com.sg/news/patient-care/must-remember-information-about-mri