Oliver Sacks provides vibrant descriptions of the wide range of forms hallucinations can take – and seems to have experienced most of them himself.
A curious feature of hallucinations is you can’t conjure them up at will. Yet they demonstrate the mind is stocked with images, and can produce involuntary but realistic perceptions that are immediate and vivid, to the point the perceiver mistakes the apparition for a real physical entity or the voice in the head as emanating from a real speaker. Nevertheless, they are often bizarre, and don’t correspond to actual events from the past. In contrast, you can consciously retrieve memories and even construct imaginary scenes, but these are diffuse and vague, and are not perceived as though happening ...
NZ Listener digital and print subscriptions
Thanks for your interest in this article. To get your latest edition of the NZ Listener via a print subscription click here.
The NZ Listener is now also available via a Zinio digital experience – read the latest edition on your computer or via the Zinio app on your tablet. To find our more click here.
Accessing archive content: If you’re interested in accessing archive content, please contact our NZ Listener helpdesk contact us. We endeavor to get back to you within 5 working days.
If you already have an archive content login, please login to view and unlock content.
Any queries regarding access please contact our NZ Listener helpdesk contact us.