Having a sense of agency means feeling that you are the one initiating and controlling your own actions. It’s the experience of authorship over what you do: the internal recognition that “I am the one making this happen.” This feeling is so constant and automatic that most people never notice it, much like you don’t notice the act of breathing until something disrupts it.
Agency vs. Ownership: Two Sides of Self
Sense of agency is closely related to, but distinct from, another basic feeling called sense of ownership. Ownership is the feeling of “mineness” toward your body, thoughts, and emotions. It’s what makes you feel that your hand is your hand, or that a thought belongs to you. Agency goes a step further: it’s the feeling that you are the author of what your body does. When you lift your leg, you experience both ownership of the leg and agency over the movement. But these two feelings can come apart. If a doctor taps your knee and your leg kicks, you still feel the leg is yours (ownership), but you didn’t cause the kick (no agency).
This distinction matters because disruptions to one can happen without disrupting the other, and those disruptions show up in very different ways.
How Your Brain Creates the Feeling of Control
Your brain doesn’t just send commands to your muscles and hope for the best. Every time you decide to act, your brain generates a prediction of what the result should look and feel like. Then it compares that prediction against what actually happens. When the predicted outcome matches the real outcome, you experience a smooth, seamless feeling of control. That match is your sense of agency.
Think about reaching for a glass of water. Before your hand even arrives, your brain has already predicted the weight of the glass, the sensation of your fingers wrapping around it, and how the movement will look. If everything matches, the action feels effortless and self-generated. If something unexpected happens, like the glass is much heavier than you anticipated, that mismatch creates a brief jolt of surprise, a tiny crack in the feeling that you’re fully in control.
The brain region most consistently linked to this process sits in the medial prefrontal cortex, which helps generate self-predictions during actions. Another area, the temporoparietal junction, plays a role in detecting prediction errors, essentially flagging moments when outcomes don’t match what you expected. Together, these regions act as a kind of authorship verification system running constantly in the background.
How Agency Develops in Childhood
Babies aren’t born with a fully formed sense of agency. It builds gradually as they learn that their actions cause things to happen in the world. By around four months, most infants are deliberately making noises and movements to keep a caregiver’s attention, an early sign they’re connecting their own behavior to outcomes. By nine months, babies bang objects together, drop things and watch where they fall, and raise their arms to signal they want to be picked up. Each of these behaviors reflects a growing understanding that “I do something, and the world responds.”
By twelve months, babies can search for objects they watched you hide, showing they understand not just their own actions but the actions of others as distinct from their own. This progression, from random movement to intentional cause-and-effect behavior, is essentially the construction of agency from scratch.
What Happens When Agency Breaks Down
The clearest evidence for how important agency is comes from conditions where it’s disrupted. Schizophrenia is one of the most studied examples. People with schizophrenia often experience what clinicians call “passivity symptoms,” the feeling that their thoughts, speech, or movements are being controlled by an outside force. Auditory hallucinations, particularly hearing voices, can be understood as a loss of agency over inner speech: the brain generates the speech but fails to tag it as self-produced, so it feels like it’s coming from someone else.
Research has shown that the internal prediction system works differently in people with schizophrenia. Even signals from the heart, which normally strengthen the feeling of agency in healthy people, have the opposite effect in schizophrenia, actively disrupting it. The severity of this disruption correlates with symptom severity: people with more frequent hallucinations and delusions show greater interference.
Other conditions involve agency disruptions too. In movement disorders like Tourette syndrome and chorea, people experience movements they did not initiate, a direct loss of agency over their own body. In anorexia nervosa, people with active symptoms report higher anxiety and a diminished sense of control. Borderline personality disorder involves feeling incapable of controlling certain behaviors, like self-harm or binge eating, though research on the underlying mechanism is still limited.
Agency, Helplessness, and Mental Health
A weakened sense of agency doesn’t only show up in diagnosed conditions. Research has found that when people are deprived of personal control, even in a lab setting, they develop patterns that resemble learned helplessness, and their implicit sense of agency measurably decreases. Depressive traits are also linked to a flattening of the normal variation in agency: healthy people feel more agency during freely chosen actions than forced ones, but this difference shrinks in people with depressive tendencies.
This connects to a related but broader concept called locus of control. Locus of control describes your general belief about whether outcomes in your life are driven by your own actions (internal) or by external forces like luck or other people (external). People with a stronger internal locus of control tend to have a stronger preference for agency, meaning they actively choose to be the decision-maker rather than delegating. Sense of agency is the moment-to-moment feeling of authorship; locus of control is the broader personality trait that shapes how much you seek out that feeling in the first place.
Agency in an Age of Automation
Interactions with technology can quietly reshape your sense of agency. When you use a highly automated system, the question of “who is really in control” becomes blurry. Research on human-machine interaction has found that systems designed to assist along the way (helping you execute a movement or task step by step) preserve your sense of agency well, keeping it close to the level you’d feel doing the task entirely by hand. But systems that take over entire goals for you, handling the outcome rather than the process, significantly weaken the feeling that you’re in charge.
There’s an interesting exception. When a task is so difficult that you’re failing at it, computer assistance can actually increase your sense of agency compared to struggling alone. In those moments, the help doesn’t feel like a loss of control; it feels like empowerment. This is why good software and interface design has long emphasized giving users the feeling that they’re in charge. One foundational principle of interface design, dating back decades, explicitly states that systems should “support an internal locus of control,” because users want to feel that the system responds to them, not the other way around.
Strengthening Your Sense of Agency
Because agency is built on the loop between intention, action, and outcome, anything that tightens that loop tends to strengthen it. Setting small, specific goals and completing them reinforces the connection between what you decide and what happens. Choosing actively rather than defaulting matters: research shows the feeling of agency is stronger for freely chosen actions than for actions you were told to perform, even if the physical movement is identical.
Paying closer attention to sensory feedback also plays a role. The prediction-matching system that generates agency depends on you actually registering what happens after you act. Practices that increase body awareness, like mindful movement or focused attention on physical sensations during everyday tasks, give the system more data to work with. For older adults or people recovering from neurological conditions, interventions that increase the weight given to sensory feedback are one of the most promising avenues for restoring a diminished sense of agency.
Reducing unnecessary automation in your daily routines can help too. Every time you manually perform a task that could be automated, you’re exercising the intention-action-outcome loop. This doesn’t mean rejecting all convenience, but it does mean that habitually outsourcing decisions and actions has a real psychological cost that most people never consider.