The Function of Emotions: Why Emotions Matter in Psychology and Everyday Life

To understand why we feel, we must look beyond the immediate discomfort of sadness or the heat of anger.

What is the function of emotions?

At their core, the function of emotions is to help humans survive, communicate, make decisions, and build relationships by signaling important internal and external events. They are rapid information processing systems that help us react to the world without needing to consciously analyze every detail.

The Evolutionary Purpose:

Imagine our ancestors on the savanna. If they heard a rustle in the grass and stopped to logically debate, “Is that a lion or the wind?”, they would be eaten. Instead, fear triggered an immediate physiological response—heart racing, muscles tensing—forcing them to run.

Key Functions at a Glance:

• Survival: They prepare the body for action (Fight/Flight/Freeze).
• Communication: They signal our state to others (e.g., crying signals a need for help).
• Cognition: They highlight what is important to remember.

Clinical Insight:

I often tell my clients: “Your emotions are not facts, but they are messengers.” They tell you that something in your environment requires your attention.

The 3 Main Functions of Emotions (DBT Framework)

One of the most effective frameworks for understanding this topic comes from Dialectical Behavior Therapy (DBT), developed by Dr. Marsha Linehan. In DBT, we teach that there are 3 functions of emotions. Understanding these can be a game-changer for those struggling with emotional regulation.

A. Intrapersonal Function of Emotions (Action Urge)

The intrapersonal function of emotions refers to how emotions work inside of us to guide our behavior.

• Motivate Action: Emotions prepare our bodies for action. Anger pumps blood to our hands (to fight), while fear pumps blood to our legs (to run).
• Guide Attention: Emotions act like a highlighter pen for reality. If you are anxious, your brain scans for danger. If you are happy, your brain scans for opportunity.
• Provide Information: Gut feelings often tell us about a situation before our logic catches up.

Example:

If you feel a sudden wave of guilt, the function is to signal that you may have violated your own moral code. The action urge is to apologize or repair the harm.

B. Interpersonal Function of Emotions (Communication)

We are social animals. The interpersonal function of emotions is to communicate our internal state to others, often faster than words can.

• Signal to Others: A facial expression of sadness signals vulnerability and elicits caregiving from others.
• Influence Others: Anger can stop others from crossing our boundaries. Joy invites connection.

Clinical Note:

Many of my clients with social anxiety struggle here. They try to suppress their facial expressions (the “poker face”), which ironically makes others feel less safe around them because we trust people whose emotions we can read.

C. Adaptive / Survival Function

The adaptive function of emotions is purely about keeping the organism alive.

• Disgust: Prevents us from eating poisoned food.
• Fear: Prevents us from walking off a cliff.
• Love/Bonding: Ensures we protect our offspring, guaranteeing the survival of the species.

Functions of Emotions in Psychology

Beyond the DBT model, general psychology breaks down functions of emotions in psychology into specific cognitive and behavioral roles.

1. Cognitive Function (Decision Making)

Have you ever tried to make a decision when you felt completely numb? It is nearly impossible. Neuroscientist Antonio Damasio studied patients with damage to the emotional centers of the brain.

Despite having high IQs, they could not make simple decisions (like what to eat for lunch) because they lacked the “gut feeling” of preference.

• Function: Emotions provide the “weight” to our options, helping us prioritize what matters.

2. Memory Encoding

We remember emotionally charged events better than neutral ones.

• Function: This is a learning mechanism. If a stove burns you (pain/fear), you remember never to touch it again.
• The Downside: In PTSD, this function works too well, encoding traumatic memories so deeply that they feel like they are happening in the present.

3. Behavioral Activation

Emotional functioning examples often involve movement.

• Depression (Sadness): Often leads to withdrawal. While this feels negative, the evolutionary function was likely to conserve energy and avoid conflict during times of loss or sickness.
• Excitement (Joy): Leads to exploration and risk-taking, which helps us find new resources.

What Are Functional Emotions?

Not all emotional expressions are helpful in every context. In therapy, we distinguish between functional vs. dysfunctional emotions (or facilitative vs. debilitative).

What are functional emotions?

A functional emotion fits the facts of the situation and helps you take effective action.

Debilitative vs. Facilitative Emotions

Examples:

• Functional Fear: Seeing a snake and jumping back. (Keeps you safe).
• Dysfunctional Fear (Panic): Being terrified to leave your house because you might see a snake. (Prevents life).
• Functional Guilt: Realizing you snapped at your partner and apologizing. (Repairs relationship).
• Toxic Shame: Feeling you are a bad person because you made a mistake. (Causes withdrawal).

What is the primary function of emotions?

Ultimately, it is adaptation. Even “negative” emotions like anxiety are functional when they motivate us to study for a test or drive carefully in the rain.

Primary Emotions and Their Functions

In my practice, I often use the film Inside Out to explain primary emotions. It is a brilliant depiction of how basic emotions drive the “control console” of our minds.

What are the 7 basic emotions?

While models vary (Ekman vs. Plutchik), most psychologists agree on these core universal emotions.

Subsection A: The 7 Basic Emotions

1. Joy
2. Sadness
3. Fear
4. Anger
5. Disgust
6. Surprise
7. Contempt (Note: Some models swap this for Trust or Anticipation).

These emotions are biologically hardwired. A baby born blind will still smile when happy and scowl when angry, proving these are not learned behaviors but innate programs.

Subsection B: Function of Primary Emotions

Let’s break down the specific job description for each of these:

1. Fear

• Function: Protection.
• Message: “There is a threat.”
• Action Urge: Escape or freeze.

2. Anger

• Function: Defense & Boundary Setting.
• Message: “An obstacle is blocking me” or “I am being treated unfairly.”
• Action Urge: Attack, defend, or assert control.

3. Sadness

• Function: Reintegration & Support.
• Message: “I have lost something important.”
• Action Urge: Withdraw to heal; signal need for help.

4. Joy

• Function: Reinforcement.
• Message: “This is good for me.”
• Action Urge: Continue the behavior; connect with others.

5. Disgust

• Function: Rejection.
• Message: “This is toxic (physically or socially).”
• Action Urge: Spit it out; move away.

6. Surprise

• Function: Orientation.
• Message: “Something unexpected happened.”
• Action Urge: Stop and pay attention.

Social and Cultural Functions of Emotion

Emotions do not exist in a vacuum. While the feeling happens inside your body, the function often happens between people.

What are the social and cultural functions of emotion? Sociologically, emotions act as the “social glue” that holds groups together or the “wall” that separates them.

1. Social Coordination Emotions coordinate social interactions. If you see someone with a furrowed brow and clenched fists (Anger), you instinctively give them space. If you see a smile (Joy), you approach. This rapid, non-verbal communication prevents constant conflict.

2. Cultural Display Rules Every culture has unwritten rules about how and when to show emotion.

• Example: In some cultures, maintaining a “stoic” face during grief is a sign of strength. In others, loud wailing is the expected way to honor the deceased.
• Function: Following these rules signals membership in the tribe. Breaking them risks social exclusion.

3. Moral Signaling Emotions like shame and guilt serve a powerful social function. They signal to the group: “I know I messed up, and I care about the rules.” A person who never shows shame is often viewed as dangerous (psychopathic) by the group because they cannot be regulated by social norms.

What Is the Function of Emotions for Infants?

If you want to see the raw function of emotion, look at a baby. They have no language, no money, and no physical strength. Their only survival tool is emotion.

What is the function of emotions for infants? For an infant, emotions are a distress signal system.

• Crying (Sadness/Fear): The siren that says, “I have a need! Come help me!”
• Smiling (Joy): The reward that keeps the parent engaged and willing to do the hard work of caregiving.

The Role of Mirroring: In developmental psychology, we talk about mirroring. When a baby smiles, the parent smiles back. This teaches the baby, “I exist, and I can affect the world.”

• Clinical Insight: In the famous “Still Face Experiment,” when a mother stops showing emotion, the baby immediately becomes distressed and disorganized. This proves that emotional function is essential for brain development: Without emotional feedback, the infant brain literally cannot wire itself correctly for social connection.

How Emotions Affect Our Lives

Why do emotions play a crucial role in our lives? Clients often ask, “Wouldn’t I be more efficient without feelings?” The answer is no. You would be paralyzed.

1. Decision-Making As mentioned earlier, emotions provide the “value” for our choices. Without the subtle anxiety of “I might be late,” you would never leave the house on time. Without the excitement of “I love this subject,” you would never choose a career.

2. Physical Health Strong emotions can affect your body.

• Chronic Anger/Stress: Keeps the body in “fight or flight,” flooding the system with cortisol. Over time, this damages the heart and suppresses the immune system.
• Positive Emotions: Joy and gratitude release oxytocin and dopamine, which lower blood pressure and improve healing.

3. Relationships Emotions are the currency of relationships.

• Empathy: The ability to feel what another person feels (emotional resonance) is the basis of trust.
• Conflict Resolution: You cannot solve a fight with logic alone. You must address the underlying emotional wound (usually fear or disrespect) to move forward.

Evolutionary Function of Emotions

Evolutionary function of emotions answers the question: Why did nature keep these messy feelings?

Natural Selection: Traits that help us survive are passed down. Traits that kill us are weeded out.

• Anxiety as a Survival Trait: The caveman who was “chill” and didn’t worry about the rustling bush got eaten. The anxious caveman ran away and survived to become your ancestor.
• Jealousy as a Mating Strategy: While unpleasant, evolutionary psychologists argue that jealousy functions to protect one’s mate from rivals, ensuring one’s genes are passed on.

The Modern Mismatch: The problem is that our brains are still wired for the savanna, but we live in an office.

• Old Function: Fear = Run from a tiger.
• New Context: Fear = A rude email from a boss.
• Result: We have a “tiger response” (panic attack) to an “email problem.” Therapy helps update this software.

Practical Tools & Resources

Understanding the function of emotions is the first step. Applying it is the second. Here are tools I use in my practice.

1. The “Function of Emotions” Worksheet (DBT) A simple table where you log:

• Event: What happened?
• Emotion: What did I feel?
• Action Urge: What did I want to do?
• Outcome: Did doing it help or hurt?

2. The Emotion Wheel Using a tool like Plutchik’s wheel helps identify if you are feeling “Rage” (high intensity) or “Annoyance” (low intensity), which helps determine the appropriate action.

3. Downloadable Resources:

• [Link Placeholder]: Download our free Function of Emotions PDF (Summary of the 3 DBT Functions).
• [Link Placeholder]: Printable Functions of Emotions List for classrooms and therapy groups.

Emotional Functioning Examples

Let’s apply this theory to real-life scenarios to see functional vs. dysfunctional responses.

Scenario 1: Workplace Conflict

• Emotion: Anger (at a coworker stealing credit).
• Function: To defend a boundary and seek justice.
• Functional Response: Assertively speaking to the coworker or boss about your contribution.
• Dysfunctional Response: Slashing the coworker’s tires (too extreme) or swallowing the anger until you get an ulcer (suppression).

Scenario 2: Academic Stress

• Emotion: Anxiety (about a final exam).
• Function: To motivate preparation.
• Functional Response: Studying, making a schedule, asking for help.
• Dysfunctional Response: Procrastinating to avoid the feeling, leading to failure.

Scenario 3: Grief

• Emotion: Sadness (loss of a parent).
• Function: To slow down and process the loss; to signal community support.
• Functional Response: Crying, taking time off, accepting hugs/meals.
• Dysfunctional Response: Manically working 80 hours a week to “outrun” the grief.

Conclusion: Embrace the Messenger

The next time you feel a wave of anxiety, a flash of anger, or a pit of sadness, try not to push it away. Instead, ask the magic question: “What is this emotion trying to do for me?”

Is it trying to protect you? Connect you? Wake you up? When we stop fighting the function of emotions and start listening to them, we stop being at war with ourselves. We become more adaptive, more resilient, and ultimately, more human.

FAQ Section

What is the function of emotions? 

The primary function is adaptation. Emotions are rapid information processing systems that help us survive threats, communicate with others, and make quick decisions based on what is important to us.

What are the 3 functions of emotions in DBT? 

In Dialectical Behavior Therapy (DBT), the three functions are: 1) Communicating to others (influencing people), 2) Communicating to ourselves (giving us data/guiding attention), and 3) Motivating action (preparing the body to move).

What is the primary function of emotions? 

From an evolutionary standpoint, the primary function is survival. Fear keeps us safe from danger, disgust keeps us safe from poison, and love ensures the survival of offspring.

What are the 7 basic emotions? 

Most psychologists identify them as: Joy, Sadness, Fear, Anger, Disgust, Surprise, and Contempt. These are considered universal across cultures.

What are functional emotions? 

Functional emotions are feelings that fit the facts of a situation and help you take effective action. For example, feeling fear when a car swerves into your lane is functional because it makes you react quickly to save your life.

How do emotions affect our life? 

They influence almost every aspect of existence: they drive our decision-making, affect our physical health (through stress or relaxation responses), determine the quality of our relationships, and guide our moral compass.

References & High-Quality Sources

1. National Institute of Mental Health (NIMH)
2. American Psychological Association (APA)
3. Paul Ekman Group
4. Behavioral Tech 
5. American Psychological Association