The frontal lobe has a variety of functions, and injury to a specific area results in a symptom particular to that area. The most common symptoms are loss of movement, partial or complete, difficulty performing tasks requiring a sequence of actions, speech, mood swings, decreased motivation, drastic personality change, etc. The damage can be due to trauma, stroke, infection, tumors, multiple sclerosis, neurodegenerative diseases, etc.
Navigating the Terrain of Frontal Lobe Syndrome - Cognition Unleashed
Frontal lobe syndrome results from damage to higher functioning processes of the brain such as language, speech, motivation, planning, and social behavior.