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The first image is bright and photographic, levels 2 through 4 show increasingly simpler and more faded images, and the last—representing complete aphantasia—shows no image at all. Aphantasia (/ ˌ eɪ f æ n ˈ t eɪ ʒ ə / AY-fan-TAY-zhə, / ˌ æ f æ n ˈ t eɪ ʒ ə / AF-an-TAY-zhə) is the inability to visualize. [1]
The condition where a person lacks mental imagery is called aphantasia. The term was first suggested in a 2015 study. [28] Common examples of mental images include daydreaming and the mental visualization that occurs while reading a book.
Hyperphantasia is the condition of having extremely vivid mental imagery. [1] It is the opposite condition to aphantasia, where mental visual imagery is not present. [2] [3] The experience of hyperphantasia is more common than aphantasia [4] [5] and has been described as being "as vivid as real seeing". [4]
Meet two women with unusual ways of experiencing the world: One cannot revisualize people or events, while the other may imagine too much.
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Autobiographical memory (AM) [1] is a memory system consisting of episodes recollected from an individual's life, based on a combination of episodic (personal experiences and specific objects, people and events experienced at particular time and place) [2] and semantic (general knowledge and facts about the world) memory. [3]
1. Alzheimer's disease: know the symptoms. Alzheimer's disease "is an illness of the brain that occurs primarily in older people where brain cells start to die," Devi says.
He was educated at Westminster School, then at Magdalen College and Merton College, Oxford, [4] where he took a first degree in philosophy and psychology then trained in medicine. He trained in neurology at the National Hospital for Neurology in Queen Square, London , and Addenbrooke's Hospital in Cambridge. [ 5 ]