Answer:
Subliminal perception
Step-by-step explanation:
The term subliminal perception refers to a perception that is so subtle that it cannot reach conscious awareness. In other words, it occurs when a stimulus is too weak to be perceived by a person but somehow the person is influenced by it anyway.
In this example, researchers found that when given the word-pair "ocean-moon" followed by the word "detergent", participants typically said the word "tide" but they couldn't explain why they said that.
So, apparently there was a perception so subtle by associating these words that it didn't reach their conscious awareness but somehow they were influenced by it since they said the same word (tide).
Thus, this would support the concept of subliminal perception.