Understanding Empathy Toward Dissimilar Others in Challenging Everyday Interactions

Area of Science:

• Neuroscience
• Social Psychology
• Rehabilitation Science

Background:

• Empathy is crucial for social interaction but can be challenging towards individuals with dissimilar characteristics.
• Stroke-induced hemiplegia presents unique challenges in manual interactions, requiring investigation into empathic responses.

Purpose of the Study:

• To investigate the neural and behavioral mechanisms of empathy towards individuals with hemiplegia during manual interactions.
• To explore how observing grasping movements by hemiplegic vs. non-hemiplegic hands influences empathic feelings and brain activity.

Main Methods:

• Functional magnetic resonance imaging (fMRI) and multivoxel pattern analysis (MVPA) were employed.
• Participants observed videos of individuals with hemiplegia performing grasping actions with affected and unaffected hands.
• Behavioral responses and neural data were analyzed to differentiate empathic responses.

Main Results:

• Observing hemiplegic hand movements elicited stronger negative empathy, while grasping a human hand (vs. object) with the hemiplegic hand evoked more positive feelings.
• Mirror neuron and mentalizing networks differentiated empathic responses to object vs. human hand grasping.
• The dorsal medial prefrontal cortex (MPFC) showed enhanced classification for hemiplegic grasping, and affective empathy regions responded to feelings of relief.

Conclusions:

• Both affective and cognitive empathy systems are engaged when empathizing with individuals with hemiplegia.
• The dorsal MPFC plays a key role in precise empathic responses to hemiplegic movements.
• The affective empathy system is sensitive to positive emotions like relief during observed actions.