Affective valence facilitates spatial detection on vertical axis: shorter time strengthens effect

Area of Science:

• Cognitive Psychology
• Psycholinguistics
• Neuroscience

Background:

• Affective concepts are often metaphorically mapped onto spatial dimensions, a phenomenon known as the valence-space metaphor.
• Previous research has not fully explored the valence-space metaphor across different spatial axes (transverse and vertical) or its temporal dynamics.

Purpose of the Study:

• To investigate the valence-space metaphor on the transverse (left-right) and vertical (up-down) spatial axes.
• To examine the time course and potential attentional modulation of the valence-space metaphor on the vertical axis.

Main Methods:

• A spatial cue task was employed with Chinese participants.
• Participants memorized affective words before performing a spatial target detection task.
• Interstimulus intervals (ISI) of 100, 500, and 1000 ms were manipulated to assess temporal effects.

Main Results:

• A significant valence-space metaphoric association was observed exclusively on the vertical axis, with positive words facilitating upper target detection.
• On the vertical axis, short ISIs (100 ms) showed both positive-upper and negative-lower associations.
• Longer ISIs (500 and 1000 ms) primarily revealed the positive-upper association, suggesting ISI modulates the metaphor's manifestation.

Conclusions:

• Affective valence processing preferentially activates the vertical spatial axis, not the transverse axis.
• The valence-space metaphoric association, particularly on the vertical axis, appears to be modulated by interstimulus interval, possibly reflecting attentional allocation mechanisms.