Injuries on the parietal lobe result in the inability to name an object, inability to locate words or write, inability to focus visual attention, difficulty reading, difficulty drawing objects, difficulty distinguishing left from right, difficulty performing mathematics, and difficulty with eye-hand coordination. 

Injuries on the occipital lobe result in defects in vision (visual field cuts), difficulty identifying colors, hallucinations, inaccurately seeing objects, inability to recognize words, inability to recognize the movement of objects, difficulty reading and writing. 

Injuries on the temporal lobe result in difficulty recognizing faces, difficulty understanding spoken words, difficulty identifying and verbalizing objects, short-term memory loss, interference with long-term memory, increased or decreased libido, inability to categorize objects, increased aggressive behavior. 

Injuries to the frontal lobe involve symptoms such as a loss of simple movement of various body parts (Paralysis), or a loss of complete, multi-stepped tasks. The patient may also experience a loss of flexibility in thinking, or an inability to focus on tasks (Attending). Mood changes, changes in social behavior, changes in personality, difficulty with problem solving, or an inability to express language (Broca’s Aphasia), may also indicate an injury to the frontal lobe.