What term describes made-up words exemplifying a patient's delusional world?

Neologisms refer to newly created words or expressions that are often nonsensical or specific to an individual’s unique context, particularly in the realm of psychiatric conditions. In cases such as schizophrenia, individuals may develop their own vocabulary to describe concepts or objects that hold a special significance in their delusional perception of reality. These neologisms reflect the person's cognitive processing and can enhance understanding of their state of mind and the nature of their delusions.

Perseveration pertains to the repetition of a particular response or behavior, typically when it is not appropriate. Tangential speech involves digressions from the main topic and failing to provide relevant responses. Word salad is characterized by a jumble of words that may not make coherent sense but does not necessarily imply the creation of new terms as in the case of neologisms. Therefore, neologisms are a clear representation of the uniquely constructed linguistic expressions that emerge from a patient's delusional thought processes.