Functional Fixedness refers to a hindrance in problem solving in which a person thinks of an object as having very specific functions , and is unable to see the potential uses of various objects in novel situations; problem-solving phenomenon in which people have difficulty seeing alternate uses for common objects. Functional Fixedness, moreover, is a rigidity in problem solving caused by an inability to see new uses for familiar objects; the inability to realize that something known to have a particular use may also be used for performing other functions
Functional Magnetic Resonance Imaging (fMRI) : Functional Magnetic Resonance Imaging (fMRI) refers to a variant of the traditional MRI, which makes it possible to construct a picture of activity in the brain. It is a neuroimaging technique that uses magnetic fields to construct a detailed representation in three dimensions of levels of activity in various parts of the brain at a given moment
model refers to a theory that integrates the localization-of-function and equipotentiality perspectives. This theory holds that any behavior is due to the interaction of several brain systems and that the nature of a behavioral deficit will depend on which functional system is affected as well as the localization of damage within that functional system.