Why People Talk to Themselves - How Saying It Out Loud Organizes Your Thoughts

Talking to Yourself Is Not a Sign That Something Is Wrong

When you see someone muttering to themselves on the train, you may feel like keeping a little distance. Yet talking to yourself (self-talk) is a thoroughly natural human behavior. In much of daily life we think in words, carrying on an inner dialogue in our heads - and what we call talking to yourself is simply a part of that inner dialogue spilling out as sound.

Children's self-talk is especially striking. The developmental psychologist Lev Vygotsky noticed that children playing say things like "this one goes here... now make this one red...," and he described this as speech that organizes thought and guides the child's own actions. In developmental psychology, such speech is known as "private speech." As we grow up, private speech becomes internalized as the voice in our head, but it comes out loud again whenever the cognitive load runs high.

Three Ways Talking to Yourself Boosts Your Brain's Performance

It helps you find what you are looking for

A research team at the University of Wisconsin ran an experiment on this. Participants were shown photographs of supermarket shelves and asked to find a specific product. The group that searched while saying "banana" out loud found the item significantly faster than the group that searched in silence.

The explanation offered is that saying the word activates the visual image stored in your head - the yellow shape of a banana - and makes the search more efficient. The person muttering "milk, milk..." while scanning the shelves is actually using the most efficient search strategy available.

Saying the name of what you are looking for calls up the appearance tied to that word, giving you more cues for checking the candidates that enter your view. It is not a cure-all, though. The effect shows up most clearly for objects whose look springs to mind from the name alone, and fades for objects where the link between name and appearance is weak - a spatula, say. Whether the spoken word conjures a concrete image is what makes the difference.

It sharpens your problem-solving

Programmers have a technique they call "rubber duck debugging." When you cannot find the bug in your code, you explain what the code does, line by line, out loud to a rubber duck toy. Very often, somewhere in the middle of the explanation, you catch yourself saying "ah, this part is wrong."

This is a textbook example of how talking to yourself aids problem-solving. Putting your thinking into spoken words brings out the gaps in logic that stayed blurry inside your head. When you only think something through silently, it is easy to settle into feeling that you more or less get it; once you put it into words, the parts you did not actually understand come into sharp relief.

Many researchers pace around the room speaking out loud while working through a mathematical proof or the structure of a paper. Speaking serializes your thinking: ideas that were running in parallel get lined up into a single thread. As a draft stage before the written word, talking to yourself serves as quality control for your thinking.

It helps you manage your emotions

When athletes tell themselves "it's okay, I can do this" before a match, they are using what sports psychology calls "motivational self-talk." Research has repeatedly shown that positive self-talk improves performance while negative self-talk lowers it.

What is intriguing is the reported finding that using your own name in self-talk makes it easier to stay calm. Saying "Taro can do this" in the third person, rather than "I can do this," creates emotional distance and makes calm judgment easier.

Third-person self-talk is thought to work because it lets you look at your situation from a slightly removed position. When anger or anxiety is running high, staying in the first person makes it easy to get swept up in the emotion, whereas switching to the third person has been reported to soften the intensity of the feeling without the strain of bracing yourself to hold it down.

A Common Misconception: Is Talking to Yourself a Sign of Mental Illness?

Some people hold the image that "people who talk to themselves a lot are dangerous." What matters here, however, is the content and context of the self-talk, not the act itself. Self-talk is part of the everyday behavior of healthy people, and speaking out loud is not in itself a psychologically problematic act.

What does call for attention is hearing commanding "voices" you cannot control, or appearing to hold a conversation with a partner who is not actually there. That is a different phenomenon from talking to yourself and is classified with symptoms such as auditory hallucinations. It should be clearly distinguished from everyday self-talk like "hmm, what was next?" or "right, let's do this."

What It Says About People Who Talk to Themselves a Lot

Talking to yourself surfaces most readily when you are working on something too complex to process in your head alone. It is the state of having brought out an extra tool - verbalization - and it reflects the load of the moment, not how capable you are. Self-talk works like external memory for the brain, helping to supplement the capacity of working memory.

Take the person who narrates while cooking: "first brown the onions, then add the meat, then pour in the sauce..." This is a strategy for economizing working memory, letting you concentrate your cognitive resources on the actual cooking rather than on remembering the steps. In the same way, reading study material aloud is known to stay in memory better than silent reading. The explanation given is that the extra step of producing the words in your own voice and hearing them with your own ears makes those items easier to tell apart from the rest.

How to Put Self-Talk to Work

Using self-talk deliberately can raise your everyday performance. When looking for something, say its name out loud. Before a complex task, run through the steps aloud to confirm them. When you feel anxious, address yourself in the third person. In trains, libraries and other public places, though, the realistic approach is to keep it to the voice in your head or at most a whisper, out of consideration for those around you.

Summary

Talking to yourself is not a strange habit - it is a powerful tool that boosts your brain's performance. It makes searching more efficient, drives problem-solving forward and helps you regulate emotion. The next time you notice yourself talking to yourself, there is no need to feel embarrassed. Your brain is simply doing its work in the most efficient way it knows.