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Physiological Approach Research Method #1: Biological Methods This research method can also be divided into two smaller groups: Invasive and Non-Invasive Method. Invasive method basically involves the actual cutting and damaging of a brain, while non-invasive method revolves around scanning a fully functional brain with different devices. Invasive Method The invasive method can also be broken down into two smaller groups: lesions and ablations surgery. Ablation surgery is the process of actually removing a part of a brain, whilst lesions surgery involves damaging a part of the brain with electrodes. Most of these methods however, are done on animals, usually because of ethical issues. Surgery is still done on human brains, although they are only used to help the patients more than to experiment on them. Evaluation Advantages: There were quite a few tests that were done on humans, where it's quite safe for us to make a few reasonable conclusions with. Also, when using animals,...

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