1 Why is the story of Phineas Gage considered so extraordinary? What does his story teach us about the brain?
The injury that occurred to Phineas Gage is extraordinary because it completely changed his emotions and mental characteristics, and did not damage him severely physically.He lived from the accident, and was physically the same person, but after it, all of his personal characteristics changed, turning him into a completely different person. This proves that the part of his brain that was injured is the part that is responsible for controlling emotion, personality and reasoning.
2 (Optional) How did Gall and Penfield differ in their approach to studying brain function?
Both scientists wanted to answer questions through their experiments, but Gall mostly used observations and data collection to retrieve his discoveries. Penfield on the other hand, seemed to be a lot more interactive with his experiment, as he used live patients, and opened their skulls and performs stimulations on their brains. Penfield had to use live subjects and subject them to stimulations to make observations; this seemed more like an experiment. Gall used dissections and autopsies of brains as well as skull observations to make conclusions about his hypotheses.
1. (Optional) Scientists have used a drawing called a motor homunculus to show the connection between different body parts and areas of the brain. This drawing is a cartoon of the human body, where the bigger the body parts, the more area of the motor cortex that is dedicated to controlling them. If you were to draw this figure, what body parts do you think would be most exaggerated? Explain.
The face, especially the mouth and tongue, and the hands. These body parts are exaggerated because they are directly correlated with the senses and they are responsible for expressing much of what the brain analyzes. The hands must feel, act upon many
3 (Optional) How did Broca and Wernicke