Understanding Transient Global Amnesia: What Liev Schreiber’s Diagnosis Can Teach Us
What’s Transient Global Amnesia?
Transient global amnesia (TGA) is a sudden, temporary episode of memory loss. During an episode, a person may remain alert, aware of who they are, and able to recognize familiar people, yet unable to form new memories or recall events from the recent past.
Although researchers don’t fully understand why TGA occurs, many believe it involves a brief disruption in the hippocampus, the brain’s memory center, due to temporary changes in blood flow or electrical activity. Episodes can be triggered by emotional stress, intense physical exertion, sudden temperature changes, or pain. TGA is most common in adults above age 50 and more prevalent in people with a history of migraines. Symptoms typically resolve within several hours, and individuals usually recover completely.
Symptoms and Diagnosis
A person experiencing TGA may suddenly appear confused, forget recent events, or repeatedly ask the same questions despite being conscious and able to communicate clearly. After an episode, actor Liev Schreiber, who was diagnosed with TGA in 2024, recalled that he couldn’t remember his lines or his co-star’s name during a live performance on Broadway.
Additionally, people with TGA don’t typically have other neurological symptoms such as weakness, numbness, vision changes, or slurred speech, which are signs that might suggest a stroke. However, they may experience headache, nausea, or mild dizziness during the episode.
Although TGA is usually harmless, an immediate medical evaluation is essential to rule out more serious conditions. “In rare circumstances, this can be caused by lesions in the brain such as tumors or blood vessel problems like strokes. In these cases, the symptoms are often not temporary,” said Robert Starke, MD, co-director of endovascular neurosurgery at Jackson Memorial Hospital, and a UHealth – University of Miami Health System neurosurgeon and neuroradiologist.
Many patients are observed in the hospital for a short period until symptoms improve and it’s confirmed that they don’t have more dangerous conditions. Memory typically returns within 24 hours, which is when most people are discharged and able to resume their usual routines without restrictions.
Treatment Options
There’s no specific medication or intervention that treats TGA itself. Management centers on careful monitoring while clinicians rule out urgent causes of memory loss. Because TGA resolves on its own, the focus is on ensuring patient safety and confirming that symptoms aren’t related to stroke, seizure, or head injury. Long-term complications are rare, and although the condition can reoccur, it’s relatively uncommon.
Liev Schreiber’s recent hospitalization has brought renewed attention to TGA and serves as a reminder that sudden memory loss should always be taken seriously. Prompt evaluation provides reassurance and ensures that a patient doesn’t have other serious neurologic conditions.
Image: Sachyn, CC BY-SA 3.0, via Wikimedia Commons
