Study, participants | Impairment | Method | Critical comparison | Changes |
Markowitsch 199729—Single case | Probable psychogenic amnesia, retrograde | SPECT (resting perfusion), PET (activation) | SPECT 3 weeks post onset. PET 6 months post onset. Episodic retrieval: old sentences (information heard one day prior to scanning) vs new sentences |
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Markowitsch 200030—Single case | Psychic shock induced mnestic block syndrome | FDG-PET (resting) | 2 vs 12 months after syndrome onset each in comparison with controls, some recovery at 12 month mark. ROI in temporal lobes and thalami only |
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Yasuno 200031—Single case, 12 healthy controls | Psychogenic amnesia, retrograde | PET (activation) | Interaction: famous face versus gender discrimination, 2 vs 12 months after syndrome onset. No direct statistical comparison with controls. |
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Yang 200532—Single case | Selective retrograde psychogenic amnesia, after a severe stressful event. | fMRI | Recognisable faces of pre-amnesic period friends. Unrecognisable faces of post-amnesia period friends. Unfamiliar faces. No direct statistical comparison |
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Botzung 200733—Single case | Psychogenic autobiographical memory loss for period to age 16 | fMRI | Recall of residual autobiographical memories from amnesic period vs recall from preserved period (rather than successful inhibition of memories from amnesic period) |
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Hennig-Fast 200834—Single case, 9 healthy controls | Persistent retrograde amnesia following a dissociative fugue | FDG-PET (resting, acute state only), fMRI | fMRI: Presentation of autobiographical versus various types of non-autobiographical information. Acute state vs one year post-onset. No direct statistical analysis of interaction |
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Brand 200935—14 patients | Dissociative amnesia, with variable antereograde and executive impairments. | FDG-PET (resting) |
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Kikuchi 201036—Two patients | Dissociative amnesia | fMRI | ‘Unrecognised’ (but previously known) faces from amnesia period vs recognised faces from remembered period |
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⇑, increased activation; ⇓, decreased activation; ○, lack of expected activation.
ACC, anterior cingulate cortex; DLPFC, dorsolateral prefrontal cortex; FDG-PET, (18F) fluorodeoxyglucose–positron emission tomography; fMRI, functional MRI; OFC, orbitofrontal cortex; PCC, posterior cingulate cortex; PFC, prefrontal cortex; SFG, superior frontal gyrus; SPECT, single photon emission computed tomography; vmPFC, ventromedial prefrontal cortex.