Musical memory and hippocampus revisited: Evidence from a musical layperson with highly selective hippocampal damage
| Autor: | Carsten Finke, Christoph J. Ploner, Nazli Esfahani-Bayerl, Daa-Un Moon, Ute A. Kopp |
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| Rok vydání: | 2018 |
| Předmět: |
Melody
Male Cognitive Neuroscience Emotions Precuneus Experimental and Cognitive Psychology Hippocampal formation behavioral disciplines and activities Hippocampus 050105 experimental psychology Temporal lobe 03 medical and health sciences 0302 clinical medicine Retrosplenial cortex Memory Neuroplasticity medicine Humans 0501 psychology and cognitive sciences Recognition memory Neuronal Plasticity Resting state fMRI 05 social sciences Brain Recognition Psychology humanities Neuropsychology and Physiological Psychology medicine.anatomical_structure Female Psychology human activities Neuroscience 030217 neurology & neurosurgery Music |
| Zdroj: | Cortex; a journal devoted to the study of the nervous system and behavior. 119 |
| ISSN: | 1973-8102 |
| Popis: | The role of the human hippocampus for musical memory is still unclear. While imaging studies in healthy humans have repeatedly shown hippocampal activation in musical memory tasks, studies in musicians with chronic bilateral medial temporal lobe damage and in non-musicians suffering from neuro-degenerative diseases suggest that musical memory may at least partly be independent of hippocampal integrity. Here, we report on a musical layperson who acutely developed an amnesic syndrome in the context of autoimmune encephalitis. Structural and resting state functional MRI revealed exceptionally selective bilateral lesions of the hippocampi and altered functional connectivity with retrosplenial cortex and precuneus. Neuropsychological testing showed a severe global amnesic syndrome. Perception and processing of scales, melodic contours, intervals, rhythms and meter were unaffected. Most notably, the patient performed completely normally on tests of recognition memory for unfamiliar melodies and excerpts of complex musical material, while recognition memory for visual and verbal information was severely impaired. Likewise, emotional evaluation of musical excerpts did not differ from controls. We infer that integrity of musical processing and recognition memory in patients with hippocampal dysfunction does not result from training-induced or post-lesional brain plasticity, but rather reflects integrity of brain networks outside the hippocampi and presumably also outside retrosplenial cortex and precuneus. Our findings suggest major differences in the neural substrates of musical and non-musical recognition memory. |
| Databáze: | OpenAIRE |
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