According to Psych Central, clang associations, or clanging, is a manner of speech presented by some psychiatric patients during psychotic episodes. Clanging involves choosing words based on their sound rather than their meaning. This involves rhyming or alliteration. An example of a clanging sentence is "He walked the dog eggnog, frog, clog, soggy, simple sentence."
Clanging often occurs during the course of schizophrenia, psychotic mania, psychotic depression, brief psychotic disorder, schizophreniform disorder or other mental illnesses that involve psychosis. While rhyming and alliteration are often used as literary devices in poetry or lyrics, clanging is situationally inappropriate, and it impedes a person's ability to communicate concepts and ideas to other people, according to Wikipedia.
Clanging can be present in bipolar disorder patients speech patterns during psychotic mania or psychotic depression, states Everyday Health. Clanging is often a symptom of a thought disorder that is usually part of a larger mental illness. Other examples of thought disorders that are presented through speech are word salad, neologisms, disorganization and echolalia. Word salad is closely related to clanging, and it is basically a jumble of words without meaning. Clanging and word salad are often present at the same time, as represented in the aforementioned example. Neologisms are made up words that have no meaning to anyone other than the speaker. Echolalia is repeating the words others say, and disorganization is a manner of speech that involves speaking in non sequiturs.