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The human consumption of psychoactive drugs , such as marijuana , cocaine , and heroin, is of even more recent historical origin than the human consumption of alcohol or tobacco, so the Hypothesis would predict that more intelligent people use more drugs more frequently than less intelligent individuals. The use of opium dates back to about 5,000 years ago, and the earliest reference to the pharmacological use of cannabis is in a book written in 2737 BC by the Chinese Emperor Shen Nung. Opium and cannabis are the only “natural” (agricultural) psychoactive drugs. Other psychoactive drugs are “chemical” (pharmacological); they require modern chemistry to manufacture, and are therefore of much more recent origin. Morphine was isolated from opium in 1806, cocaine was first manufactured in 1860, and heroin was discovered in 1874.
Screenshot of a tetromino game. People who play video puzzle games like this for a long time may see moving images like this at the edges of their visual fields, when they close their eyes, or when they are drifting off to sleep. The Tetris effect (also known as Tetris Syndrome ) occurs when people devote sufficient time and attention to an activity that it begins to overshadow their thoughts , mental images , and dreams . It is named after the video game Tetris . People who play Tetris for a prolonged amount of time may then find themselves thinking about ways different shapes in the real world can fit together, such as the boxes on a supermarket shelf or the buildings on a street. [ 1 ] In this sense, the Tetris effect is a form of habit .
Ten of the most influential social psychology studies. "I have been primarily interested in how and why ordinary people do unusual things, things that seem alien to their natures. Why do good people sometimes act evil?
You are not who you think you are. Your personality and identity is significantly more malleable than you realize. With a few simple tricks, you can exploit your brain's innate functionality to change just about anything about yourself.
The Dunning–Kruger effect is a cognitive bias in which unskilled individuals suffer from illusory superiority , mistakenly rating their ability much higher than average. This bias is attributed to a metacognitive inability of the unskilled to recognize their mistakes. [ 1 ] Actual competence may weaken self-confidence, as competent individuals may falsely assume that others have an equivalent understanding. David Dunning and Justin Kruger of Cornell University conclude, "the miscalibration of the incompetent stems from an error about the self, whereas the miscalibration of the highly competent stems from an error about others". [ 2 ]