Related Experiment Video
Updated: May 30, 2026
12:33
Corticospinal Excitability Modulation During Action Observation
Published on: December 31, 2013
From simulation to reciprocity: the case of complementary actions
Luisa Sartori1, Andrea Cavallo, Giulia Bucchioni
1Department of General Psychology, University of Padova, Padova, Italy.
Social Neuroscience
|July 23, 2011
Summary
Observing actions can trigger automatic imitation, but context can shift this to complementary responses. This research explores how the brain balances mirroring observed movements with preparing for different, context-specific actions.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Motor Control
Background:
- Perceiving body movements activates observers' motor systems, often leading to imitation.
- This automatic mirroring may conflict with the need for complementary actions in joint tasks.
- Resolving this conflict between imitation and complementary action preparation is not well understood.
Purpose of the Study:
- To investigate how the brain resolves the conflict between automatic imitation and context-dependent complementary actions.
- To explore the neural mechanisms underlying the shift from symmetrical simulation to reciprocity during action observation.
Main Methods:
- Utilized single-pulse transcranial magnetic stimulation (TMS) to probe corticospinal excitability.
- Participants observed actions with implicit complementary requests and control conditions.
- Measured differential motor facilitation for imitative versus complementary gestures.
Main Results:
- Observation of actions with implicit complementary requests shifted corticospinal activity from symmetrical simulation to reciprocity.
- Differential motor facilitation occurred for imitative and complementary gestures, even with identical grasps.
- Control conditions confirmed the influence of the complementary context.
Conclusions:
- The brain balances automatic imitation with preparation for complementary actions when contextually relevant.
- Implicit complementary requests can direct attention to contextual features that guide non-imitative responses.
- This interplay highlights the dynamic nature of action observation and preparation in social cognition.
Related Concept Videos
01:28Factors Influencing Attraction IV: Reciprocity
Reciprocity in attraction is fundamental to social and romantic relationships, shaping how individuals form and maintain connections. The psychological principle underlying this phenomenon is that people tend to like those who express liking toward them. Balance theory supports this tendency, suggesting that mutual attraction fosters psychological harmony, whereas one-sided affection leads to discomfort and cognitive dissonance.The Psychological Mechanisms Behind ReciprocityWhen individuals...
01:13Nonconscious Mimicry
Nonconscious mimicry occurs when individuals alter their mannerisms to match the behaviors and expressions of those nearby, without intention.
01:18Principle of Equivalence
According to Albert Einstein (1897-1955), free-falling and feeling weightless are intrinsically linked. If a person were in free-fall under gravity, for example, diving towards the Earth from an airplane, they would feel completely weightless. Similarly, a person descending in a lift may feel partially weightless. Broadly speaking, it is assumed that an object in a uniform gravitational field and an object undergoing constant acceleration in the absence of gravity are under the same...
02:12Relationship Formation
What do you think is the single most influential factor in determining with whom you become friends and whom you form romantic relationships? You might be surprised to learn that the answer is simple: the people with whom you have the most contact. This most important factor is proximity. You are more likely to be friends with people you have regular contact with. For example, there are decades of research that shows that you are more likely to become friends with people who live in your dorm,...
01:26Equity Theory
Equity theory explains how our sense of fairness influences the dynamics of close relationships. Rooted in social psychology, the theory posits that individuals evaluate fairness by comparing the ratio of their contributions to the rewards they receive. Relationship satisfaction is highest when these ratios are perceived as balanced between partners, promoting mutual reciprocity and a sense of justice.Equity vs. Equality in RelationshipsEquity is distinct from equality. Fairness does not...
02:06Social Exchange Theory
We have discussed why we form relationships, what attracts us to others, and different types of love. But what determines whether we are satisfied with and stay in a relationship? One theory that provides an explanation is social exchange theory. According to social exchange theory, we act as naïve economists in keeping a tally of the ratio of costs and benefits of forming and maintaining a relationship with others (Rusbult & Van Lange, 2003).