From affective blindsight to emotional consciousness

Area of Science:

• Neuroscience
• Cognitive Science
• Psychology

Background:

• Cortical blindness results from primary visual cortex (V1) damage.
• Affective blindsight is the ability to perceive visual emotional expressions in blind fields.

Purpose of the Study:

• To review studies on affective blindsight.
• To clarify its functional properties, neural bases, and theoretical implications.

Main Methods:

• Review of existing scientific literature on affective blindsight.
• Analysis of studies investigating emotional perception in patients with V1 damage.

Main Results:

• Evidence suggests subcortical structures mediate affective blindsight.
• The superior colliculus, pulvinar, and amygdala are implicated in nonconscious emotion perception.

Conclusions:

• Affective blindsight offers insights into vestigial visual system properties.
• Emotion processing in the absence of consciousness may illuminate the evolution of consciousness for social interaction.