WASHINGTON — The female soldier who was photographed at Abu Ghraib prison giving a smiling "thumbs-up" beside a pyramid of naked detainees is appealing her convictions to the U.S. military's highest court.

Former Army Reserve Specialist Sabrina Harman of Lorton, Va., was sentenced to 6 months behind bars for her role in the abuses that occurred six years ago at the prison in Iraq.

The U.S. Court of Appeals for the Armed Forces scheduled arguments today on whether there was enough evidence to sustain convictions on six counts of maltreatment, conspiracy to maltreat detainees and dereliction of duty.

Harman also was found to have participated in an episode in which a hooded detainee was photographed standing atop a box with wires in his hands.