A 28-year-old man with known epilepsy had been considered seizure free for several years on 2 antiseizure medications. Upon awakening, however, he often feels fatigued. Occasionally he notices that he has bitten his tongue in his sleep. Subsequently, an EEG obtained during sleep showed the following. Which of the following statements is correct? 

• Given these EEG findings, he may be a candidate for resective brain surgery.  
• Interictal memory acquisition is typically preserved   
• Laceration of the anterior tip of the tongue is a highly specific marker for nocturnal epileptic seizures.  
• Since these seizures occur only during sleep, long-term antiseizure therapy may not be necessary.  
• These events are associated with a higher incidence of SUDEP (Sudden Unexpected Death in Epilepsy)  

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