Related Experiment Video
Updated: Aug 9, 2026

Use of a Wireless Video-EEG System to Monitor Epileptiform Discharges Following Lateral Fluid-Percussion Induced Traumatic Brain Injury
Published on: June 21, 2019
[Total dream loss secondary to left temporo-occipital brain injury]
1Servicio de Neurología, Hospital Donostia, San Sebastián. jjpoza@chdo.osakidetza.net
Introduction:
Recently the case of a woman who reported cessation of dreaming after a bilateral PCA stroke but without REM sleep loss has been reported, suggesting that deep bilateral occipital lobe damage including the right inferior lingual gyrus may represent the "minimal lesion extension" necessary for dream loss.
Case Report:
We report the case of a 24-year-old man who ceased dreaming after a unilateral left temporo- occipital hematoma. The polysomnographic characteristics in rapid eyes movements (REM) sleep were otherwise normal.
Conclusion:
Our patient demonstrates that a unilateral left temporo-occipital injury could be sufficient for losing dreams.
Related Concept Videos
Traumatic Brain Injury l: Introduction
Secondary Spinal Cord Injury llI: Pathophysiology
Hemorrhagic Stroke ll: Pathophysiology
Amnesia
The severity and duration of memory loss vary depending on the type and underlying cause. Amnesia is classified into two main types: retrograde and anterograde.
Retrograde amnesia is marked by the loss of memories formed before the onset of the condition. Patients may recall distant past events but often forget those occurring shortly before the incident.
Anterograde...
Increased Intracranial Pressure ll: Pathophysiology
Spinal Cord Injury ll: Pathophysiology

