Selective memory retrieval of auditory what and auditory where involves the ventrolateral prefrontal cortex.

Area of Science:

• Neuroscience
• Cognitive Psychology

Background:

• The midventrolateral prefrontal cortex (mVPFC) is known to modulate posterior cortical activity for active controlled retrieval in visual, verbal, and tactile memory.
• Neural mechanisms for active retrieval of nonverbal auditory information remain largely unexplored.

Purpose of the Study:

• To investigate the neural basis of active retrieval for nonverbal auditory information.
• To explore the role of the mVPFC in auditory memory retrieval.

Main Methods:

• Functional magnetic resonance imaging (fMRI) was used to scan human participants.
• Participants performed a task involving selective retrieval of auditory information (melody or location) from a virtual acoustic environment.

Main Results:

• Significant activity increases were observed in the mVPFC during selective retrieval of nonverbal auditory information.
• The right mVPFC showed increased interaction with the auditory temporal region and inferior parietal lobule during auditory memory retrieval.

Conclusions:

• The mVPFC plays a critical role in the active controlled retrieval of nonverbal auditory memories.
• The mVPFC interacts with specific posterior cortical areas for retrieving object and location features of auditory experiences.