Fronto-Temporal Dementia refers to a range of dementias associated with degeneration of the frontal and temporal lobes.
Dementia of the Frontal Lobe Type is associated with significant changes in behavior, personality and mood. A person with this condition may become socially disinhibited, impulsive, disorganized and irritable. Conversely, they may become apathetic, disengaged and blunted in their emotions.
Semantic Dementia is associated with a loss of knowledge about objects and concepts, however, day to day memory is usually relatively well preserved.
Primary Progressive Aphasia is associated with word-finding difficulties, grammatical errors and articulation errors. Memory and other cognitive skills are usually well preserved, even though a person with this condition may progress to mutism.