Which function is commonly affected by a left-hemisphere stroke?

Which function is commonly affected by a left-hemisphere stroke?

• A. Speech and language
• B. Left neglect
• C. Spatial awareness
• D. Impulsive behavior

Answer: (A)

Language functions are usually localized in the left hemisphere, especially in right-handed individuals. A stroke in that hemisphere can disrupt the neural networks for speech production and language comprehension, leading to aphasia. This is why speech and language are commonly affected by a left-hemisphere stroke. By contrast, neglect of the left side tends to occur after right-hemisphere damage, since the right hemisphere plays a major role in attention and spatial processing. Impulsive behavior is more related to frontal-lobe function and isn’t specifically tied to left-sided strokes.

Language functions are usually localized in the left hemisphere, especially in right-handed individuals. A stroke in that hemisphere can disrupt the neural networks for speech production and language comprehension, leading to aphasia. This is why speech and language are commonly affected by a left-hemisphere stroke. By contrast, neglect of the left side tends to occur after right-hemisphere damage, since the right hemisphere plays a major role in attention and spatial processing. Impulsive behavior is more related to frontal-lobe function and isn’t specifically tied to left-sided strokes.