AI Article Synopsis
- Scientists are trying to understand how quickly the brain can change its structure when learning new skills or remembering information.
- They used a special type of brain scan called diffusion tensor imaging (DTI) to look at changes in brain areas related to memory after just two hours of training on a task.
- The study found that the brain's structure changed significantly during this short training, suggesting that the brain can rewire itself quickly to help with learning.
Article Abstract
The timescale of structural remodeling that accompanies functional neuroplasticity is largely unknown. Although structural remodeling of human brain tissue is known to occur following long-term (weeks) acquisition of a new skill, little is known as to what happens structurally when the brain needs to adopt new sequences of procedural rules or memorize a cascade of events within minutes or hours. Using diffusion tensor imaging (DTI), an MRI-based framework, we examined subjects before and after a spatial learning and memory task. Microstructural changes (as reflected by DTI measures) of limbic system structures (hippocampus and parahippocampus) were significant after only 2 hr of training. This observation was also found in a supporting rat study. We conclude that cellular rearrangement of neural tissue can be detected by DTI, and that this modality may allow neuroplasticity to be localized over short timescales.
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| http://dx.doi.org/10.1016/j.neuron.2012.01.025 | DOI Listing |
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