Tracking memory loss after a head injury involves careful observation, documentation, and sometimes medical testing to understand the extent and progression of cognitive changes. Memory loss can occur due to disruption in brain signals caused by trauma, affecting the ability to recall past events (retrograde amnesia) or form new memories (anterograde amnesia)[3].
The first step is to monitor symptoms closely. Common signs include difficulty remembering recent events or appointments, confusion, trouble concentrating, mood changes, headaches, and sleep disturbances. Keeping a daily journal or using memory aids like calendars and apps can help track these changes over time[3]. Noticing whether memory issues improve, worsen, or stay the same is important for guiding treatment.
Medical evaluation often includes imaging tests. While CT scans are typically used immediately after injury to detect acute damage, MRI scans provide a more detailed view of brain structure and function, especially for subtle or older injuries. Advanced MRI techniques such as functional MRI (fMRI) and Diffusion Tensor Imaging (DTI) can reveal how brain networks involved in memory and cognition are affected[4]. Functional imaging can also track brain activity during memory tasks, offering objective measures of impairment and recovery[1][4].
Neuropsychological testing is another key tool. These tests assess different types of memory and cognitive functions through structured tasks, helping to pinpoint specific deficits. Repeated testing over time can show whether memory is improving or if further intervention is needed.
Emerging treatments and assessments use brain mapping and targeted therapies to address memory loss after concussion. For example, fMRI-guided transcranial magnetic stimulation (TMS) targets disrupted brain networks to promote recovery, with objective brain function measures before and after treatment[1]. Additionally, research into the biological mechanisms of brain injury is advancing understanding of how memory impairment develops and how it might be treated[2].
Supporting recovery involves cognitive therapy, memory exercises, and lifestyle changes such as proper sleep, balanced nutrition, and gentle physical activity. These approaches help the brain heal and compensate for memory difficulties[3]. Regular follow-up with healthcare providers ensures that progress is monitored and adjustments to care are made as needed.
Sources
https://www.cognitivefxusa.com/blog/3-day-fmri-guided-tms-treatment-shows-results-for-chronic-post-concussion-syndrome
https://www.nature.com/articles/s41392-025-02466-7
https://www.ganassin.com/car-accidents/can-a-head-injury-or-concussion-cause-memory-loss-after-an-accident/
https://int.livhospital.com/what-does-an-mri-show-in-the-brain-old-injury/
https://www.amenclinics.com/do-you-know-these-10-signs-of-post-concussion-syndrome/
