Is the approach avoidance compatibility effect moderated by word imageability?

The approach/avoidance (AA) compatibility effect refers to the fact that individuals respond faster by an approach movement to positive than to negative stimuli, whereas they respond faster by an avoidance movement to negative than to positive stimuli. Although this effect has been observed in many studies, the underlying mechanisms remain still unclear. On the basis of recent studies suggesting a key role of sensorimotor information in the emergence of the AA compatibility effect, the present study aimed to investigate the specific role of visual information, operationalised through word imageability, in the production of the AA compatibility effect. We orthogonally manipulated the emotional valence (positive/negative) and the imageability (low/high) of words in an incidental online-AA task (i.e., in the absence of valence processing goals) using a stimulus onset asynchrony (SOA) of 300 ms. In line with previous studies, Experiment 1 revealed an AA compatibility effect in the absence of valence processing goals. However, this effect was not moderated by word imageability. In Experiment 2, we examined whether the absence of influence of word imageability could be due to the short SOA (300 ms) used in this experiment. We used the same design as in Experiment 1 and manipulated the SOA (400 vs 600 ms). We again observed an AA compatibility effect which was not moderated by word imageability, whatever the SOA used. The results of both experiments suggest the absence of any influence of sensorimotor information in the AA compatibility effect, at least when provided by the to-be-approached/avoided stimulus.