Dreams are a subjective experience generated by our brain during sleep, when we disconnect from the external environment. Although dreams are a universal phenomenon with significant cultural and psychological implications, they remain an enigmatic aspect of our brain function. In recent years, neurological studies have been focused on the relationship between dreams and neurological disorders. However, the connection between dream content and epilepsy, in particular focal epilepsy, remains understudied. This study aims to investigate the neurological mechanism underlying dream experience in patients with focal epilepsy. We hypothesize that dream experience will be different in patients with focal epilepsy in comparison to a healthy control population, both in oneiric content and in elements of form. We recruited 19 patients from the Epilepsy Monitoring Unit at Baggiovara Hospital and 15 healthy controls from the IMT School for Advanced Studies in Lucca. Participants were evaluated using cognitive assessment, emotional, and dream-related questionnaires. Only patients underwent a structural MRI. Analysis revealed significant differences between patients and healthy controls in cognitive assessment, in State-Trait Anxiety Inventory (STAI), Spontaneous Mind Wandering questionnaire (MW-S), and Dream Recall questionnaire (DRQ). Within the patient group, questionnaire scores were correlated with volumes of specific cortico-subcortical regions. STAI and MW-S scores were associated with amygdala volume changes. MW-S scores were also associated with changes in hippocampal volumes. Finally, DRQ seemed more related to different cortical thickness in the medial temporal lobe. This finding suggests a neurological basis for alteration in dream-related experience in individuals with focal epilepsy. This study shows that patients with focal epilepsy have alterations in cognitive processes and emotional processes that may influence dreaming. Emphasizes that dreams may offer a unique opportunity to evaluate the cognitive alteration in focal epilepsy patients, both as a study tool and as a diagnostic method.
I sogni sono una esperienza soggettiva generata dal nostro cervello durante il sonno, quando ci dissociamo della realtà esterna. Sebbene, i sogni siano un fenomeno universale con significato sia colturale che psicologico, rimangono un elemento enigmatico del funzionamento cerebrale. Diversi studi si sono concentrati sulla relazione tra i sogni e le patologie di interesse neurologico. Tuttavia, la connessione tra contenuto onirico e epilessia, in particolare epilessia focale, rimane ancora poco esplorato. Questo studio mira ad indagare i meccanismi neurologici nella base dell’esperienza onirica in pazienti con epilessia focale, ipotizzando che questa sia differente nei pazienti rispetto a controlli senza patologie neurologiche, sia nel contenuto che nella forma. Sono stati reclutati 19 pazienti presso l’Unità di Monitoraggio per Epilessia (EMU) dell’Ospedale Civile di Baggiovara e 15 soggetti sani preso la Scuola IMT Alti Studi di Lucca. Tutti i soggetti partecipanti sono stati valutati tramite test cognitivi e relativi allo stato emotivo, sono stati somministrati questionari sulla qualità del sonno e sull’esperienza onirica. Solo i pazienti hanno inoltre eseguito una valutazione di imaging cerebrale strutturale. L'analisi condotta ha evidenziato una differenza significativa tra pazienti e controlli per quanto riguarda i test cognitivi, State-Trait Anxiety Inventory (STAI), Spontaneous Mind Wandering questionnaire (MW-S) e Dream Recall questionnaire (DRQ). Nei soli pazienti gli item risultati significativamente diversi dai controlli sono stati correlati i volumi specifiche regioni cortico-sottocorticali. I risultati riportano una correlazione tra i punteggi allo STAI e MW-S e le modificazioni di volume dell’amigdala. I punteggi MW-S si sono associate anche a modificazioni del volume dell’ippocampo. Ed infine, il questionario DRQ sembrava associato a modificazioni nello spessore corticale della corteccia medio-temporale. Questi risultati suggeriscono una base neurologica associata alle alterazioni dell'esperienza onirica nei soggetti con epilessia focale. Complessivamente, lo studio dimostra che i pazienti con epilessia focale hanno un'alterazione nei processi cognitivi ed emotivi che influenzano l'esperienza onirica. Sottolineando come i sogni possano rappresentare un'opportunità unica per valutare l'alterazione cognitive in pazienti con epilessia focale, sia come strumento di studio che come possibile metodo diagnostico.
Il linguaggio dei sogni: uno studio preliminare sulla esperienza onirica in pazienti con epilessia focale
OZ, AMIT
2024/2025
Abstract
Dreams are a subjective experience generated by our brain during sleep, when we disconnect from the external environment. Although dreams are a universal phenomenon with significant cultural and psychological implications, they remain an enigmatic aspect of our brain function. In recent years, neurological studies have been focused on the relationship between dreams and neurological disorders. However, the connection between dream content and epilepsy, in particular focal epilepsy, remains understudied. This study aims to investigate the neurological mechanism underlying dream experience in patients with focal epilepsy. We hypothesize that dream experience will be different in patients with focal epilepsy in comparison to a healthy control population, both in oneiric content and in elements of form. We recruited 19 patients from the Epilepsy Monitoring Unit at Baggiovara Hospital and 15 healthy controls from the IMT School for Advanced Studies in Lucca. Participants were evaluated using cognitive assessment, emotional, and dream-related questionnaires. Only patients underwent a structural MRI. Analysis revealed significant differences between patients and healthy controls in cognitive assessment, in State-Trait Anxiety Inventory (STAI), Spontaneous Mind Wandering questionnaire (MW-S), and Dream Recall questionnaire (DRQ). Within the patient group, questionnaire scores were correlated with volumes of specific cortico-subcortical regions. STAI and MW-S scores were associated with amygdala volume changes. MW-S scores were also associated with changes in hippocampal volumes. Finally, DRQ seemed more related to different cortical thickness in the medial temporal lobe. This finding suggests a neurological basis for alteration in dream-related experience in individuals with focal epilepsy. This study shows that patients with focal epilepsy have alterations in cognitive processes and emotional processes that may influence dreaming. Emphasizes that dreams may offer a unique opportunity to evaluate the cognitive alteration in focal epilepsy patients, both as a study tool and as a diagnostic method.| File | Dimensione | Formato | |
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Oz.Amit.pdf
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https://hdl.handle.net/20.500.14251/3293