Auditory hallucination
Auditory hallucinations are essentially the heard equivalent of imagery and open-eye transformations. They can be described as spontaneous imaginary noises that are either triggered at complete random or manifested in the place of noises that are subconsciously expected to happen. The most common examples of these are usually experienced as clips of recorded sound, such as imagined music or voices, and an infinite variety of sounds that are stored within the brain.
The most common audio hallucination that people experience are ones of heard memory replays from the previous several hours, commonly manifesting themselves as spontaneous clips of the music that was played and indistinct voices of the people who were spoken too. These are usually heard repeatedly over the course of several hours after the consumption of certain substances.
This effect can be broken down into
- Partially defined, embedded hallucinations - At this level the sounds are partially defined in their clarity meaning that they sound indistinct, muffled and difficult to make out. They are strictly heard only embedded within genuine sounds produced by the external environment. For example, hearing music in the sounds of the wind, cars and rain.
- Partially defined, separate hallucinations - At this level the sounds remain only partially defined but become heard on a separate layer of their own instead of only manifesting themselves within other noises.
- Fully defined, separate hallucinations - At this level the sounds become fully defined in their clarity meaning that the specific words being spoken or musical content of the hallucination can be recognized and understood perfectly.
- Interactive, fully defined and separate hallucinations - At this level the sounds remain fully defined in their clarity but become partially to fully interactive meaning that the voices can be conversed with and the spontaneous noises or musical symphonies controlled.