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Images are mental representations accommodated by grammatical structures. These structures order sensory input of information and provide for articulated ways of expressing motor sequences associated with images. The psychological process of perception is reflected in the development of paradigmatic structures. The psychological process of action (behavior and its mental representations) is reflected in the development of syntagmatic structures. Forming and expressing imagery requires both paradigmatic and syntagmatic structuring. The former relates to logical issues of identity of objects and to the formation of concepts. The latter relates to the solution of psycho-logical questions of causality through articulation of grammatical roles in sentences. Two issues affecting the formation of a model to account for imagery are examined: (1) the tendency to explain imagery as a result of motor sequences and to utilize performance grammar; and (2) the impact of ontogenesis on social processes affecting the logical and psychological concerns facing the person at different stages of development. The grammar of imagery is seen as broader than one of performance.