Stroke Effects on Thinking and Memory
A
stroke can cause damage to parts of the brain responsible for memory, learning, and awareness. Stroke survivors may have dramatically shortened attention spans or may experience deficits in short-term memory. Individuals may also lose their ability to:
- Make plans
- Comprehend meaning
- Learn new tasks
- Engage in other complex mental activities.
Two fairly common deficits resulting from stroke are:
- Anosognosia, which is an inability to acknowledge the reality of the physical impairments resulting from stroke
- Neglect, the loss of the ability to respond to objects or sensory stimuli located on one side of the body, usually the stroke-impaired side.
Stroke survivors may also develop a neurological disorder known as apraxia. People with apraxia lose their ability to plan the steps involved in a complex task and to carry the steps out in the proper sequence. Stroke survivors with apraxia may also have problems following a set of instructions. Apraxia appears to be caused by a disruption of the subtle connections that exist between thought and action.
(Click Apraxia for more information.)
Stroke Effects on Emotions
Many people who survive a stroke feel:
- Fear
- Anxiety
- Frustration
- Anger
- Sadness
- A sense of grief for their physical and mental losses.
These feelings are a natural response to the psychological trauma of stroke. Some emotional disturbances and personality changes result from the physical effects of brain damage. Clinical
depression, which is a sense of hopelessness that disrupts an individual's ability to function, appears to be the emotional disorder most commonly experienced by stroke survivors. Signs of clinical depression include:
- Sleep disturbances
- A radical change in eating patterns that may lead to sudden weight loss or gain
- Lethargy
- Social withdrawal
- Irritability
- Fatigue
- Self-loathing
- Suicidal thoughts.
Healthcare providers may treat post-stroke depression with
antidepressant medications and psychological counseling.