He also said his client suffered from epilepsy.
Some corporate clients suffered unexpectedly large losses and said they had not been properly warned of the deals' risks.
That unit's clients did not suffer similar losses.
Mr. Burkett's lawyer has said his client was suffering a breakdown at the time.
They say the question of whether their client suffers from a psychological impairment is an open one.
Many clients have suffered losses from poor recommendations in the past, for which they blamed the trainee dealer, who rang them up.
He also said his client was suffering from a "psychiatric disorder."
Hart chose not to lay a formal complaint as he felt that his client was suffering from severe mental health issues.
First, he must show that his client suffers from a mental disease or defect.
"It's quite clear from the papers that your client is suffering a great loss," Judge Ross told the company's lawyers.