Editing Evolutionary psychology (section)

====Cognition====
Cognition refers to internal representations of the world and internal information processing. From an evolutionary psychology perspective, cognition is not "general purpose". Cognition uses heuristics, or strategies, that generally increase the likelihood of solving problems that the ancestors of present-day humans routinely faced in their lives. For example, present-day humans are far more likely to solve logic problems that involve detecting cheating (a common problem given humans' social nature) than the same logic problem put in purely abstract terms.<ref name=Gaulin-7>Gaulin and McBurney 2003 Chapter 7.</ref> Since the ancestors of present-day humans did not encounter truly random events and lived under simpler life terms, present-day humans may be cognitively predisposed to incorrectly identify patterns in random sequences. "Gamblers' Fallacy" is one example of this. Gamblers may falsely believe that they have hit a "lucky streak" even when each outcome is actually random and independent of previous trials. Most people believe that if a fair coin has been flipped 9 times and Heads appears each time, that on the tenth flip, there is a greater than 50% chance of getting Tails.<ref name=Gaulin-6/> Humans find it far easier to make diagnoses or predictions using frequency data than when the same information is presented as probabilities or percentages. This could be due to the ancestors of present-day humans living in relatively small tribes (usually with fewer than 150 people) where frequency information was more readily available and experienced less random occurrences in their lives.<ref name=Gaulin-6/>