Related Experiment Video
Updated: Dec 13, 2025
07:34
Perceptual and Category Processing of the Uncanny Valley Hypothesis' Dimension of Human Likeness: Some Methodological Issues
Published on: June 3, 2013
17.8K
Implicit responses to face trustworthiness measured with fast periodic visual stimulation.
Journal of Vision
|July 30, 2020
Summary
Researchers used fast periodic visual stimulation (FPVS) with electroencephalogram (EEG) to detect implicit trustworthiness impressions from faces. The brain responded more strongly to untrustworthy faces, even when participants weren't judging them.
Area of Science:
- Cognitive Neuroscience
- Social Psychology
- Neuroimaging
Background:
- Facial appearance rapidly influences trustworthiness impressions.
- Brain regions like the amygdala show activity related to face trustworthiness, even implicitly.
- Functional magnetic resonance imaging (fMRI) has previously studied these implicit responses.
Purpose of the Study:
- To investigate the efficacy of fast periodic visual stimulation (FPVS) for detecting implicit neural responses to face trustworthiness.
- To compare FPVS with fMRI in capturing these rapid, spontaneous impressions.
- To determine if trustworthiness judgments can be detected using EEG and FPVS.
Main Methods:
- Scalp electroencephalogram (EEG) was recorded while participants viewed sequences of faces.
- A base face was presented at 6 Hz, with oddball faces (different identities) every fifth presentation (1.2 Hz).
- Oddball faces were either less trustworthy-looking or trustworthy-looking, with varying base face trustworthiness matches.
Main Results:
- The trustworthiness of oddball faces significantly influenced the neural response at 1.2 Hz and its harmonics.
- A stronger brain response was observed for less trustworthy-looking oddball faces compared to trustworthy-looking ones.
- The match in trustworthiness between base and oddball faces had a minimal impact on the neural response.
Conclusions:
- Fast periodic visual stimulation (FPVS) efficiently captures implicit neural responses to face trustworthiness.
- This method allows for the detection of spontaneous trustworthiness impressions using EEG.
- FPVS offers a time-efficient alternative for studying implicit social cognition related to faces.
Related Concept Videos
01:24Facial Feedback Hypothesis
451
Charles Darwin proposed that facial expressions are an evolutionary adaptation for communication. He argued that these expressions are not influenced by culture but are universal across species. For example, a snarling expression with exposed teeth signals a threat in many animals, including humans. Darwin also suggested that displaying an emotion can intensify the feeling. Smiling, for example, could enhance one's sense of happiness. This idea laid the foundation for understanding the role...
451
01:21Association Areas of the Cortex
8.3K
Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
8.3K