Pure Retrograde Amnesia Following a Mild Head Trauma: A Neuropsychological and Metabolic Study
| Autor: | Caroline Seegmuller, Christian Scheiber, Francis Schoenfelder, Lilianne Manning, François Sellal |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Adult
Male Time Factors Cognitive Neuroscience Amnesia Experimental and Cognitive Psychology Brain damage Neuropsychological Tests Procedural memory Head trauma Developmental psychology medicine Craniocerebral Trauma Humans Selective amnesia Tomography Emission-Computed Single-Photon Neuropsychology Brain Retrograde amnesia Electroencephalography medicine.disease Neuropsychology and Physiological Psychology Anesthesia Closed head injury Amnesia Retrograde medicine.symptom Tomography X-Ray Computed Psychology Magnetic Resonance Angiography |
| Zdroj: | Scopus-Elsevier |
| ISSN: | 0010-9452 |
| DOI: | 10.1016/s0010-9452(08)70019-4 |
| Popis: | After a minor closed head injury, a 33-year-old man acquired extensive retrograde amnesia (RA) covering the previous ten years and concerning autobiographical, semantic and procedural memories. The patient's learning abilities remained excellent and he recovered considerable information from his wife, the media and personal documents. This relearned information did not, however, provide a sense of personal experience in the first weeks. CT and MRI failed to show brain damage, but EEG and SPECT examination showed a marked right temporal dysfunction. After three months the patient had almost completely recovered from RA. Interestingly, a parallel recovery was observed in the second SPECT obtained at this period. There was clearly a blockade of retrieval, while the stored engrams were probably intact. The mechanisms underlying such a functional amnesia are discussed in the light of previous reports of amnesia without brain lesions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect