Long-Term Effects of a Temporal Lobe Stroke

There are numerous effects of a temporal lobe stroke

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There are numerous effects of a temporal lobe stroke ranging from difficulty speaking to hearing loss.

What is Stroke?

Stroke is a disease that affects the arteries leading to and within the brain. It is the No. 5 cause of death and a leading cause of disability in the United States. A stroke occurs when a blood vessel that carries oxygen and nutrients to the brain is either blocked by a clot or bursts (or ruptures).

When that happens, part of the brain cannot get the blood (and oxygen) it needs, so it and brain cells die.

Types of stroke 

Stroke can be caused either by a clot obstructing the flow of blood to the brain (called an ischemic stroke) or by a blood vessel rupturing and preventing blood flow to the brain (called a hemorrhagic stroke). A TIA (transient ischemic attack), or "mini-stroke", is caused by a temporary clot. 

Effects of stroke

The brain is an extremely complex organ that controls various body functions.  If a stroke occurs and blood flow can't reach the region that controls a particular body function, that part of the body won't work as it should. 

Effects of a Temporal Lobe Stroke

Language:

    Hearing

    • Hearing loss: Usually hearing loss is mild after one temporal lobe is affected by a stroke. But when both temporal lobes are affected the result might be complete deafness. This is very rare.
    • Auditory agnosia: Difficulty recognizing combinations of sounds such as songs, musical tones, and complex conversations.
    • Auditory verbal agnosia: This is the same as pure word deafness (see above)
    • Auditory illusions: Aberrant perception of normal sounds so that they feel unusual, strange, repeated, or loud.
    • Auditory hallucinations: One hears sounds that are not there. These sounds may be very complex (the sound of a song being played on the radio) or very simple (whistles or sirens). People may or may not realize that these sounds represent a hallucination. In some cases auditory hallucinations may be accompanied by visual ones.

    Memory, Emotion, and Behavior

    • Loss of short or long term memory
    • Fits of rage
    • Violent or aggressive behavior
    • Placidity
    • Lack of interest
    • Abnormally enhanced sexuality

    Other

    • Vertigo (a type of balance problem)
    • Abnormal perception of time: A feeling that time stands still or goes by extremely quickly. People might intermittently lose sense of what year, season, or month it is.
    • Disturbances of smell and taste:
    • Seizures

    References:

    Allan Ropper and Robert Brown, Adam's and Victor's Principles of Neurology, 8th Edition McGraw-Hill Companies Inc, United States of America, 2005, pp 417-430.

    American Stroke Association. http://www.strokeassociation.org/STROKEORG/AboutStroke

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