patient H.M.

E537886

Patient H.M. (Henry Molaison) was a famous neurological case study whose profound memory loss after brain surgery provided crucial insights into how human memory is organized in the brain.

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Henry Molaison 0

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Predicate Object
instanceOf case study subject
human
neurological patient
ageAtSurgery 27
birthName Henry Gustav Molaison NERFINISHED
brainDonatedTo science
brainSectionedAt The Brain Observatory, University of California, San Diego NERFINISHED
dateOfBirth 1926-02-26
dateOfDeath 2008-12-02
demonstrated dissociation between declarative and procedural memory
hippocampus is critical for forming new declarative memories
role of medial temporal lobe in memory consolidation
ethicalNote identity kept confidential as H.M. during his lifetime
hasAlias H.M. NERFINISHED
Patient H.M. NERFINISHED
identityRevealed after his death his full name was made public
impactOnField founded modern cognitive neuroscience of memory
influenced theories of memory systems
knownFor contributions to understanding human memory
severe anterograde amnesia
medicalCondition anterograde amnesia
epilepsy
partial retrograde amnesia
memoryDeficit inability to form new long-term episodic memories
limited retrograde memory for events before surgery
memoryPreserved procedural memory
short-term memory
working memory
nationality American
participatedIn mirror-tracing task experiments
perceptual learning experiments
placeOfBirth Manchester, Connecticut, United States NERFINISHED
placeOfDeath Windsor Locks, Connecticut, United States NERFINISHED
postmortemStudy high-resolution brain imaging and sectioning
residence Hartford, Connecticut, United States NERFINISHED
nursing home in Connecticut
showedInExperiments improved motor skills without conscious recollection of training
studiedBy Brenda Milner NERFINISHED
Suzanne Corkin NERFINISHED
neuroscientists worldwide
subjectOf books on memory and neuroscience
numerous scientific papers
treatedBy William Beecher Scoville NERFINISHED
underwentProcedure bilateral medial temporal lobe resection
surgical removal of amygdala tissue
surgical removal of large portions of hippocampus
surgical removal of surrounding medial temporal cortex
yearOfSurgery 1953

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Brenda Milner studied patient H.M.