Final answer:
The ictal episodes are most likely caused by absence seizures, which are characterized by brief lapses of consciousness and staring blankly.
Step-by-step explanation:
The ictal episodes described, consisting of brief lapses of consciousness lasting 2-10 seconds, followed by immediate and full resumption of consciousness without awareness of what has happened, are most likely caused by absence seizures.
Absence seizures, also known as petit mal seizures, are a type of generalized seizure that primarily affects children between the ages of 4 and 14. They are characterized by a sudden, temporary loss of consciousness and typically last for a few seconds. During this time, the child may appear to be staring blankly, with no response to their surroundings.
It is important to consult with a healthcare professional for a proper diagnosis and to discuss treatment options for managing absence seizures.