Related Experiment Video
Updated: May 5, 2026
09:52
How to Find Effects of Stimulus Processing on Event Related Brain Potentials of Close Others when Hyperscanning Partners
Published on: May 31, 2018
10.8K
Ideal Versus Real Group Mental Representations During Communicative Exchange: A Hyperscanning Study
Carlotta Acconito1,2, Roberta A Allegretta1,2, Laura Angioletti1,2
1International research center for Cognitive Applied Neuroscience (IrcCAN), Università Cattolica del Sacro Cuore, Milan, Italy.
The European Journal of Neuroscience
|February 19, 2026
Summary
Group decision-making involves cognitive and emotional processes. This study used multimodal hyperscanning to show how representing ideal versus real groups impacts neural and autonomic responses during communication.
Area of Science:
- Cognitive Neuroscience
- Social Psychology
- Human-Computer Interaction
Background:
- Group decision-making is complex, involving cognitive and emotional elements.
- Mental representations of a group (ideal vs. real) influence communication dynamics.
- Understanding neural and autonomic correlates of group communication is crucial.
Purpose of the Study:
- To investigate how self-representing ideal versus real group dimensions affects decision-making.
- To examine the impact of these representations on neural and autonomic responses during dyadic communication.
- To explore the utility of a multimodal hyperscanning approach in studying group interactions.
Main Methods:
- Utilized a multimodal hyperscanning paradigm combining electroencephalography (EEG), functional near-infrared spectroscopy (fNIRS), and biofeedback (BIO).
- Recorded EEG bands, oxygenated/deoxygenated hemoglobin, and heart rate variability (HRV) in 28 participants forming dyads.
- Participants discussed group decisions while self-representing either an ideal or a real group.
Main Results:
- Increased frontal low-frequency EEG bands indicated emotional involvement in communication.
- Self-representing the real group correlated with higher beta/gamma bands and deoxygenated hemoglobin, suggesting greater cognitive effort.
- Ideal group representation was linked to increased HRV, indicating better emotion regulation.
- Dyadic analyses revealed increased delta dissimilarity (emotional/cognitive engagement) and beta dissimilarity (attentional/cognitive control) under real group representation.
Conclusions:
- Multimodal hyperscanning provides valuable, complementary insights into communicative exchanges.
- Findings deepen the understanding of group decision-making processes and the role of mental representations.
- Results support the development of strategies to enhance group communication effectiveness.
Related Concept Videos
02:16Stereotype Content Model
13.1K
The Stereotype Content Model (SCM) was first proposed by Susan Fiske and her colleagues (Fiske, Cuddy, Glick & Xu, 2002; see also Fiske, 2012 and Fiske, 2017). The SCM specifies that when someone encounters a new group, they will stereotype them based on two metrics: warmth—or that group’s perceived intent, and how likely they are to provide help or inflict harm—and competence—or their ability to carry out that objective. Depending on the warmth-competence...
13.1K
00:57Deindividuation
22.4K
Deindividuation is a form of social influence on an individual’s behavior such that the individual engages in unusual or non-normal behavior while in a group setting. Why? Because in these group settings, the individual no longer sees themselves as an individual anymore, disinhibiting their behavior and personal restraint.
22.4K
01:24Facial Feedback Hypothesis
953
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...
953
01:30Social Foundations of Self IV: Self in Digital Communication
283
Since the early 2000s, computer-mediated communication (CMC) has grown rapidly, playing a crucial role in self-development. A key distinction between CMC and real-life interactions is the lack of a physically present partner. This absence makes non-verbal cues such as facial expressions, body language, and paralinguistic signals unavailable in CMC platforms like email, instant messaging, or social media. The lack of these cues can create ambiguity and complicate how feedback is interpreted.The...
283