Speech perception
Agnosia is "the loss or diminution of the ability to recognize familiar objects or stimuli usually as a result of brain damage". There are several different kinds of agnosia that affect every one of our senses, but the two most common related to speech are speech agnosia and phonagnosia.
Hellblade: Senua's Sacrifice
Antoniades admitted that during his research, he "didn't have to look very far to discover my own ignorance of the subject". To portray psychosis properly, Ninja Theory "consulted world-leading neuroscientists and non-profit organizations like Wellcome Trust to properly capture the experience of psychosis and its devastating effects on the human mind". Antoniades "learnt that people can experience hallucinations and delusional beliefs without it being a problem – the illness comes when those experiences cause suffering. Often the recovery is not about curing yourself of hallucinations, but finding ways to live with them. That was a revelation to me".