- Attracts the audience.
- Explains the topic.
- Declares the thesis of your argument.
Introduction :
Reading human mind is a material frequently used in SF movies or dramas. Even some magicians can pretend to read or really read human mind by using magical tricks. However, reading human mind is not something that only exist in SF movies and dramas. With the scientists' effort to actualize it, technologies for reading human mind have developed and one of them is fMRI. The fMRI is one of the brain scanning technologies that can observe the rapid changes of brain parts. It is quite familiar to people because brain scanning is showed up frequently in medical or crime-related dramas. However, will it be really effective if it is used for detecting criminals in reality? The effectiveness of the fMRI for lie detecting is a matter of debate but I think brain scanning, especially the fMRI, is an effective way to pick out criminals.
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