How domain-general proactive control modulates the processing of English wh-dependencies: An EEG study

Area of Science:

• Cognitive Neuroscience
• Psycholinguistics
• Neuroscience

Background:

• Language processing is thought to involve domain-general cognitive control.
• Previous studies linked cognitive inhibition to garden-path sentence disambiguation.
• The influence of other cognitive control types on different sentence structures remains unclear.

Purpose of the Study:

• To investigate how domain-general proactive control affects English wh-dependency sentence processing.
• To explore shared neural mechanisms between cognitive control and language processing.
• To determine if proactive control modulates language-specific comprehension.

Main Methods:

• An electroencephalography (EEG) study was conducted.
• Participants performed versions of the AX-continuous performance task (AX-CPT) to manipulate proactive control levels.
• Event-related potentials and time-frequency representations were analyzed during sentence reading.

Main Results:

• The AX-CPT effectively induced varying levels of proactive control.
• Evidence was found for a modulatory effect of proactive control on language processing.
• Specific neural mechanisms appear to be shared between cognitive control and language.

Conclusions:

• Domain-general proactive control significantly influences language-specific processing.
• Language comprehension and cognitive control may share overlapping neural resources.
• Adjusting proactive control levels can impact how individuals process language.