noun which may take the genitive case particle 'no'
subliminal; below threshold
Technical term used in psychology, neuroscience, and signal detection to describe stimuli below the perceptual threshold. Often used attributively with の.
閾値下の刺激は意識に上らない。
Subliminal stimuli do not reach consciousness.
この実験では閾値下の視覚情報が行動に影響を与えるか調べた。
In this experiment, we investigated whether subliminal visual information influences behavior.
サブリミナル is the common katakana loanword for 'subliminal', used more broadly in everyday contexts, whereas 閾値下 is a precise technical term.
Compound of 閾値 (threshold) + 下 (below). The term is a direct translation of the English 'subliminal' or 'below threshold', used in technical contexts.