Predicting Performances on Processing and Memorizing East Asian Faces from Brain Activities in Face-Selective...

Area of Science:

• Cognitive Neuroscience
• Neuroimaging
• Face Perception and Memory

Background:

• The core face network (occipital face area [OFA], fusiform face area [FFA], posterior superior temporal sulcus [pSTS]) is established for face processing.
• Anterior temporal lobes are implicated in bridging face perception and memory.
• Predictive power of core face network activity for behavioral face processing and memory, especially with East Asian faces, remains unclear.

Purpose of the Study:

• To investigate the extent to which neural activities in core face-selective regions predict behavioral performance on face processing and memory tasks.
• To explore the role of the ventral route and anterior temporal lobes in face perception and memory.
• To examine predictability using multi-voxel pattern analysis (MVPA) for the Taiwanese Face Memory Test (TFMT).

Main Methods:

• Identified core face network regions of interest (ROIs) using a one-back task with static and dynamic visual stimuli during functional scanning.
• Correlated brain activity in core ROIs with performance on component, configural, and composite face-processing tasks and the TFMT.
• Applied MVPA to assess the predictability of face-selective brain regions on TFMT performance.

Main Results:

• Dynamic localizers effectively identified ROIs in the core face-processing system.
• Limited predictability was found between core face network activity and behavioral performance on face processing and memory tasks.
• MVPA suggested that basic visual (calcarine) and structural face processing (OFA) areas might play a more significant role in face memorization.

Conclusions:

• Neural activity in established face-selective regions has limited predictive power for face memory performance, especially in specific cultural contexts.
• Basic visual and structural face processing areas may be more crucial for face memory than previously thought.
• Discrepancies may arise from differences in processing demands between behavioral and neuroimaging tasks, and cultural variations in face processing strategies.