"You Should Praise" - "You Should Kill": The Contingent Negative Variation Indicates Moral Goodness and Badness

Area of Science:

• Neuroscience
• Cognitive Science
• Moral Psychology

Background:

• Moral advice is often communicated through simple sentence structures.
• The neurocognitive processing of moral prescriptions remains understudied.
• Existing research lacks a neurocognitive perspective on moral language processing.

Purpose of the Study:

• To investigate the neurocognitive underpinnings of processing moral and immoral phrases.
• To determine if the contingent negative variation (CNV) is a neural correlate for moral language.
• To explore the temporal and semantic characteristics of neural responses to moral phrases.

Main Methods:

• Modified the contingent negative variation (CNV) paradigm using three-word phrases.
• Phrases included moral or immoral verbs (e.g., 'hope,' 'lie').
• Participants (n=19) listened or performed a finger tap task while EEG was recorded.

Main Results:

• The contingent negative variation (CNV) was sensitive to the moral and immoral valence of phrases.
• A bilateral CNV and motor-related negativity were observed, decreasing anterior to posterior.
• Neural responses indicated a shift from pragmatic to more abstract temporal frames.

Conclusions:

• The contingent negative variation (CNV) serves as a neural correlate for processing moral and immoral phrases.
• This suggests a potential transfer of neural mechanisms to abstract semantic fields.
• CNV may reflect not only action preparation but also the processing of general social guidelines.