Brain Biology and Stroke

Senior couple sitting on a bench looking at a phone.

The brain is our body’s control hub, governing essentially all activity, both voluntary and involuntary. As such, the effects of a stroke can impair all aspects of our functioning, depending on which area of the brain has been affected and the type of stroke involved.  

As you travel through your journey of stroke recovery, it can be helpful to consider various aspects of brain biology and how they influence the lingering effects from your stroke. Having this knowledge can help you understand your ongoing post-stroke issues and manage your expectations around them. 

Types Of Strokes

A stroke can result from a number of different issues. These are the major types of strokes that affect most patients:

  • Ischemic – Occurs when a blood vessel in the brain becomes blocked, either due to atherosclerosis or clot in the blood vessel. This is the most common type of stroke.
  • Hemorrhagic – Occurs when a blood vessel ruptures, causing severe bleeding in the brain. These strokes are often caused by aneurysms but may also be due to bleeding disorders or malformed blood vessels. 
  • Transient Ischemic Attack (TIA) – Caused by brief interruptions in blood flow to the brain . These incidents are often referred to as “mini-strokes” and produce temporary stroke symptoms.

How Affected Areas of the Brain Influence Post-Stroke Functioning

In addition to the type of stroke you experience, the location of the stroke dictates the types of post-stroke issues that a stroke survivor experiences. For example, strokes in the following areas of the brain will be associated with specific types of functional impairments:

      • Frontal lobe – Limitations in executive functioning, such as problem-solving, personality changes, 
      • Parietal lobe – Language issues (difficulty speaking, writing or reading) and spatial understanding
      • Occipital lobe – Vision issues, such as central vision loss or hallucinations
      • Cerebellum – Voluntary movement issues like coordination, muscle control and balance difficulties

This is just a small sample of the types of concerns a stroke survivor may encounter. Furthermore, other factors can influence stroke outcomes, including the severity of damage and your level of health prior to the stroke contribute to your symptoms. Additionally, the affected hemisphere (left brain vs. right brain) can also determine symptoms, as each hemisphere oversees different functions. 

Knowledge can be a powerful tool in your stroke recovery. Understanding how your brain has been affected by your stroke will give you a better idea of what to expect from the process and yourself. Don’t hesitate to ask your doctor or another health provider for any information about brain biology and stroke that might benefit you.