Complex sentence: Her sensitivity to cues that trigger her memories suggest that "AJ" has trouble inhibiting episodic-retrieval mode, which is the neurocognitive state required for present stimuli to be interpreted as memory cues.
Split into simpler sentences: Her sensitivity to cues that trigger her memories suggest that AJ has trouble inhibiting episodic retrieval mode. Episodic retrieval mode has been described as the neurocognitive state required for present stimuli to be interpreted as memory cues.