Final answer:
Juan experienced a false memory during his depression and demonstrated mood-dependent recall, where his current emotional state helped retrieve memories aligned with his mood.
Step-by-step explanation:
Juan experienced a false memory during therapy for depression. This type of memory is one where a memory that was formed never actually happened. In memory retrieval, a false memory can be a result of various factors, including suggestion, misinformation effect, or biased processing of memories. During his depression, Juan remembered many sad times in his life because of his mood and emotions, which can influence recall. This is known as mood-dependent recall, where an individual's current mood or emotional state can facilitate retrieval of memories that are congruent with that mood.