title: Exploring the automaticity of language-perception interactions: Effects of attention and awareness.
abstract: Previous studies have shown that language can modulate visual perception, by biasing and/or enhancing perceptual performance. However, it is still debated where in the brain visual and linguistic information are integrated, and whether the effects of language on perception are automatic and persist even in the absence of awareness of the linguistic material. Here, we aimed to explore the automaticity of language-perception interactions and the neural loci of these interactions in an fMRI study. Participants engaged in a visual motion discrimination task (upward or downward moving dots). Before each trial, a word prime was briefly presented that implied upward or downward motion (e.g., "rise", "fall"). These word primes strongly influenced behavior: congruent motion words sped up reaction times and improved performance relative to incongruent motion words. Neural congruency effects were only observed in the left middle temporal gyrus, showing higher activity for congruent compared to incongruent conditions. This suggests that higher-level conceptual areas rather than sensory areas are the locus of language-perception interactions. When motion words were rendered unaware by means of masking, they still affected visual motion perception, suggesting that language-perception interactions may rely on automatic feed-forward integration of perceptual and semantic material in language areas of the brain.
authors.affiliation: Radboud University, Donders Institute for Brain, Cognition and Behavior, Nijmegen, Netherlands.
authors.forename: Jolien C
authors.initials: JC
authors.lastname: Francken
authors.affiliation: Radboud University, Donders Institute for Brain, Cognition and Behavior, Nijmegen, Netherlands.
authors.forename: Erik L
authors.initials: EL
authors.lastname: Meijs
authors.affiliation: Radboud University, Donders Institute for Brain, Cognition and Behavior, Nijmegen, Netherlands.|Max Planck Institute for Psycholinguistics, Nijmegen, Netherlands.
authors.forename: Peter
authors.initials: P
authors.lastname: Hagoort
authors.affiliation: Radboud University, Donders Institute for Brain, Cognition and Behavior, Nijmegen, Netherlands.|Department of Psychology, University of Amsterdam, Netherlands.
authors.forename: Simon
authors.initials: S
authors.lastname: van Gaal
authors.affiliation: Radboud University, Donders Institute for Brain, Cognition and Behavior, Nijmegen, Netherlands.
authors.forename: Floris P
authors.initials: FP
authors.lastname: de Lange
mesh_terms: D001288:Attention / Q000502:physiology*; D001364:Awareness / Q000502:physiology*; D001519:Behavior; D005260:Female; D006801:Humans; D007802:Language; D008279:Magnetic Resonance Imaging; D014796:Visual Perception; D055815:Young Adult