Editing Insight (section)

===Theories===
There are a number of theories about insight; no single theory dominates interpretation.<ref name="Nature of insight" />

====Dual-process theory====
According to the dual-process theory, there are two systems that people use to solve problems.<ref name=" Lin, Hsu, Chen, Wang (2011)" /> The first involves logical and analytical thought processes based on reason, while the second involves intuitive and automatic processes based on experience.<ref name="Lin, Hsu, Chen, Wang (2011)" /> Research has demonstrated that insight probably involves both processes; however, the second process is more influential.<ref name="Lin, Hsu, Chen, Wang (2011)" />

====Three-process theory====
According to the three-process theory, intelligence plays a large role in insight.<ref name="Davidson (1984)">{{cite journal |last1= Davidson|first1=J. E. |last2=Sternberg|first2= R. J. |title=The Role of Insight in Intellectual Giftedness| journal= [[Gifted Child Quarterly]] |date=1 April 1984|volume=28|issue=2|pages=58–64|doi=10.1177/001698628402800203|s2cid=145767981 }}</ref> Specifically, insight involves three processes that require intelligence to apply them to problems:<ref name="Davidson (1984)" />
; selective encoding : focusing attention on ideas relevant to a solution, while ignoring features that are irrelevant
; selective combination : combining the information previously deemed relevant
; selective comparison : the use of past experience with problems and solutions that are applicable to the current problem and solution

====Four-stage model====
According to the four-stage model of insight, there are four stages to problem solving:<ref name="Hadamard (1975)">{{cite book |last=Hadamard|first=Jacques|title=An essay on the psychology of invention in the mathematical field |year= 1954|orig-year=1945| publisher=Dover Publ.|location=New York, N.Y.|isbn=978-0-486-20107-8 |lccn=54-4731|url-access=registration|url=https://archive.org/details/essayonpsycholog00hada}}</ref>
# The person prepares to solve a problem.
# The person incubates on the problem, which encompasses trial-and-error, etc.
# The insight occurs, and the solution is illuminated.
# The verification of the solution to the problem is experienced.
Since this model was proposed, other similar models have been explored that contain two or three similar stages.<ref name="Nature of insight" />