Which phenomenon is associated with improved memory retrieval during immediate stress?

The phenomenon associated with improved memory retrieval during immediate stress is memory consolidation. When an individual experiences stress, the body can release hormones such as adrenaline and cortisol, which have been shown to enhance the consolidation of memories that occur during that stressful event. This results in stronger memories related to experiences that are emotionally charged or significant, allowing for better retrieval of those memories in the future.

In contrast to memory consolidation, other conditions like delayed wound healing, inflammatory bowel disease, and rational thought decrease do not pertain to the enhancement of memory retrieval in the context of stress. Delayed wound healing is related to physiological responses rather than cognitive functions, while inflammatory bowel disease concerns gastrointestinal issues rather than memory processes. Rational thought decrease, particularly under stress, often leads to impaired decision-making rather than improved memory retrieval. Thus, memory consolidation stands out as the correct answer.