Disorganized Thinking: Definition, Examples, Causes, Schizophrenia & How to Treat It

Imagine sitting down to tell a friend about your morning commute. You start by mentioning the train, but the word “train” makes you think of rain, so you start talking about umbrellas, which reminds you of the beach, and suddenly you are passionately discussing ocean conservation.

You have no idea how you got from the subway to the sea, and your friend is staring at you in utter confusion.

For some people, this is not just a harmless distraction or a fleeting moment of forgetfulness—it is disorganized thinking.

In my practice as a clinical psychologist, I often observe the profound frustration that accompanies this symptom. Patients and their families frequently come into my office exhausted. They describe conversations that feel like navigating a maze with no exit.

There is a common societal misunderstanding that a “disorganized mind” just means someone who is messy, scatterbrained, or highly creative. 

\However, in a clinical context, what disorganized thinking means is something far more profound. It is a fundamental breakdown in how the brain links concepts, processes information, and communicates reality.

When patients ask me what disorganized thinking feels like, they often describe it as a radio scanning through stations too quickly to catch a full song, or a filing cabinet where all the folders have been thrown into the air.

While it is strongly associated with conditions like schizophrenia, it is not exclusive to it. Understanding the mechanics behind these fragmented thoughts is the first step toward reducing stigma and finding a path back to clarity.

What Is Disorganized Thinking?

To provide a precise disorganized thinking definition, we must look at how the brain constructs logic. In psychology, disorganized thinking is defined as a severe disturbance in the logical organization, sequence, and flow of thought.

Because we cannot physically see into a person’s mind to observe their thoughts, we must infer this disorganization almost entirely through their speech patterns. This is why you will frequently see the terms “disorganized thinking and speech” grouped together in clinical literature like the DSM-5-TR.

Whether you are studying for an AP Psychology exam or trying to understand a loved one’s diagnosis, the core disorganized thinking psychology definition hinges on the inability to maintain a coherent narrative thread.

When a person is experiencing this, their Executive Function—the cognitive management system located in the prefrontal cortex—is temporarily failing to filter, categorize, and sequence information.

Core characteristics of a disorganized thought process include:

• Loss of Goal-Directed Thought: The individual cannot reach the logical conclusion of a thought or story.
• Impaired Sequential Logic: Ideas are linked by sound, rhyme, or loose tangential connections rather than logical progression.
• Communication Breakdown: The severity of the disorganization renders the person’s speech difficult or completely impossible for others to understand.

Disorganized Thinking 

What does disorganized thinking look like in reality? As clinicians, we categorize signs of a thought disorder into several specific patterns. Understanding these examples of disorganized thinking helps us pinpoint exactly where the brain’s cognitive processing is breaking down.

To explain the “why” behind these symptoms, we have to look at how the brain accesses memories and vocabulary. Healthy Executive Function acts like an orchestra conductor, telling certain neural pathways to quiet down while directing others to play loud and clear.

In a thought disorder, the conductor leaves the stage. All associations fire at once, and the brain cannot inhibit the irrelevant ones.

Here are the most common clinical presentations:

1. Loose Associations (Derailment) This is the most common sign of a thought disorder. The person jumps from one topic to another, but the topics have only a very fragile, superficial connection.

• Example: “I need to buy some apples. My grandmother had an apple tree. Trees are made of wood. I think I’ll build a boat tomorrow.”
• The Psychology: The brain’s semantic network is overactive. Instead of suppressing the memory of the grandmother to stay focused on the grocery list, the brain gives equal weight to every spontaneous association.

2. Tangentiality A person exhibiting tangential speech will answer a question by veering completely off-topic and never returning to the original point.

• Example: (When asked, “Where do you live?”) “I used to live in a blue house. Blue is a calming color, like the ocean. I went swimming once and saw a shark. Sharks are very misunderstood creatures.”
• The Psychology: This indicates a failure in working memory. The brain cannot hold the original prompt (“Where do you live?”) in its active workspace long enough to formulate the correct answer.

3. Circumstantial Speech. Unlike tangentiality, the person does eventually answer the question, but they take a painfully long, winding road full of unnecessary, tedious details to get there.

• Example: (When asked, “What time is your appointment?”) “Well, I woke up at 7:00 AM, and I had toast, but the toaster was acting up, which reminded me I need to call the electrician, and anyway, I left the house by 9:00, so I will be at the doctor by 10:30.”

4. Clang Associations This is a severe manifestation where thoughts are organized purely by the sound or rhyme of words, rather than their meaning.

• Example: “I am going to the park, bark, dark, the shark is in the dark.”

5. Word Salad (Incoherence) In the most extreme cases, thoughts are so severely fragmented that speech becomes a completely random jumble of words with no grammatical or logical structure.

• Example: “Window blue tomorrow sleep pencil angry running.”

The Connection Between Disorganized Thinking and Speech

It is crucial to understand why mental health professionals focus so heavily on how a person talks. When assessing a patient, we draw a strict line between thought content (what the person is thinking about, such as delusions or obsessions) and thought process (how the thoughts are connected and formed).

Disorganized speech is the physical artifact of a disorganized mind. When a patient exhibits loose associations or word salad, it tells me that their brain’s internal filtering mechanism is compromised.

Disorganized Thinking in Schizophrenia

When we discuss disorganized thinking, schizophrenia is often the most common clinical association. Patients frequently ask, “Is disorganized thinking a positive symptom of schizophrenia?” Yes, it is.

 In psychiatric terminology, a “positive symptom” does not mean something good; it means a symptom that adds an abnormal function or behavior to a person’s baseline, such as hallucinations, delusions, or, in this case, formal thought disorder.

To understand what disorganized thinking in schizophrenia looks like, we must look at the brain’s neurochemistry. Schizophrenia is heavily linked to dopamine dysregulation, particularly in the prefrontal cortex and mesolimbic pathways.

When the brain’s dopamine system is overwhelmed, the mind loses its ability to filter out irrelevant stimuli. 

The patient is essentially bombarded by every thought, memory, and environmental sound all at once. Consequently, their speech becomes fragmented because their Executive Function cannot organize this flood of data into a coherent, linear narrative.

Furthermore, disorganized thinking in schizophrenia examples often extends beyond just speech. It frequently presents alongside what we call “grossly disorganized behavior.” This extremely disorganized behavior manifests as an inability to perform basic, goal-directed daily tasks. 

A patient might wear a heavy winter coat in the middle of summer, become agitated without a clear trigger, or exhibit bizarre, unpredictable postures. Understanding that this behavior stems from a profound cognitive overload—not intentional defiance—is crucial for family members and caregivers.

Disorganized Thinking Causes

While schizophrenia is a primary driver, what causes disorganized thinking encompasses a much wider range of psychological and physiological conditions. In my practice, I never assume a thought disorder is automatically schizophrenia until I rule out several other critical factors.

The primary disorganized thinking causes include:

• Severe Mood Disorders: Bipolar disorder during a severe manic episode, or major depressive disorder with psychotic features, can severely fragment thought processes. The sheer speed of manic thoughts can outpace the brain’s ability to vocalize them coherently.
• Delirium: Often seen in elderly patients, a sudden onset of disorganized speech is frequently caused by acute medical conditions, such as severe dehydration, pneumonia, or a urinary tract infection (UTI). Systemic inflammation disrupts the brain’s neurotransmitter networks temporarily.
• Substance Intoxication or Withdrawal: Hallucinogens, severe alcohol withdrawal (delirium tremens), and stimulant abuse can temporarily mimic the exact symptoms of a primary psychotic disorder.
• Neurological Disorders: Traumatic brain injuries (TBIs), strokes, and late-stage dementias physically damage the brain’s language and reasoning centers.

Is It ADHD, Anxiety, or a Thought Disorder?

A frequent concern I hear from patients is, “Am I developing a thought disorder?” when they are actually experiencing ADHD, disorganized thinking, or disorganized thinking from anxiety. It is incredibly important to differentiate between an overloaded mind and a clinically disorganized one.

With ADHD, a person might jump rapidly from topic to topic (distractibility), but the logical thread is still intact and understandable to the listener.

With severe anxiety, a person’s working memory is hijacked by fear, leading to cyclical rumination or “blanking out” mid-sentence. Neither of these represents a true psychotic thought disorder.

What Is a Disorganized Thought Process?

In clinical documentation, understanding what a disorganized thought process entails requires separating how a person thinks from what they are thinking about.

When a psychiatrist or psychologist conducts a Mental Status Exam (MSE), we listen to the structure of the patient’s language. If a patient is talking about a delusional plot (thought content) but their sentences are grammatically perfect and logically sequenced, their thought process is actually organized. 

Conversely, if a patient is trying to talk about something mundane, like grocery shopping, but their words are a completely incoherent jumble (word salad), that is a disorganized thought process. It means the structural architecture of their cognition is temporarily failing.

2 Broad Types of Disorganized Thinking

Clinicians generally categorize this symptom into 2 types of disorganized thinking to guide treatment:

1. Formal Thought Disorder (Speech/Language): This involves the verbal manifestations we discussed earlier, such as loose associations, tangentiality, and clang associations. It is a failure in the semantic processing network.
2. Behavioral Disorganization (Action/Motor): This involves a failure in goal-directed physical actions. The patient cannot sequence the physical steps required to cook a meal, dress appropriately for the weather, or maintain basic personal hygiene.

Disorganized Thinking Treatment

Patients and families are always most desperate to know how to fix disorganized thinking. Because it is a symptom and not a standalone disease, disorganized thinking treatment must target the underlying root cause.

If the disorganization is caused by a primary psychotic disorder like schizophrenia, antipsychotic medications are the foundational first step. These medications act as a biochemical brake system, stabilizing dopamine levels so the prefrontal cortex can resume its filtering duties.

However, medication alone is rarely sufficient. In my clinical work, I rely heavily on Cognitive Remediation Therapy (CRT). This evidence-based therapy utilizes the principles of Neuroplasticity to strengthen the brain’s cognitive pathways. 

We use specialized mental exercises to improve working memory, sustained attention, and logical sequencing. Furthermore, we practice structured communication strategies.

I teach patients to deliberately slow down their speech rate and use external organization tools—like writing down bullet points before a conversation—to give their Executive Function a structural scaffold to lean on.

If the disorganization is secondary to ADHD or anxiety, treatment shifts entirely. We utilize stimulant medications or non-stimulants to enhance prefrontal cortex engagement, combined with Executive Function coaching or Cognitive Behavioral Therapy (CBT) to manage anxiety-induced cognitive overload.

Frequently Asked Questions

Defining the Condition

Disorganized thinking is a clinical symptom characterized by a severe disruption in the logical flow, sequencing, and organization of thoughts, most visibly observed through fragmented, illogical, or incoherent speech patterns.

Is Disorganized Thinking a Positive Symptom?

Yes. In the context of schizophrenia and other psychotic disorders, it is classified as a “positive symptom,” meaning it is an abnormal cognitive behavior that is added to the patient’s baseline functioning, much like a hallucination or delusion.

Primary Causes

It is primarily caused by schizophrenia spectrum disorders, severe bipolar mania, major depression with psychosis, acute delirium (often from medical infections in the elderly), and the intoxication or withdrawal of certain severe substances.

Presentation in Schizophrenia

In schizophrenia, it looks like jumping between completely unrelated topics (loose associations), answering questions with entirely irrelevant information (tangentiality), or, in severe cases, speaking in a completely incomprehensible jumble of random words (word salad).

Conclusion

In my practice, I always emphasize to patients and their families that disorganized thinking is a symptom of a brain under immense cognitive stress—not a reflection of a person’s intelligence, character, or worth.

When the brain’s Executive Function temporarily falters and loses its ability to filter and sequence information, the resulting conversational maze can feel incredibly frightening and isolating for everyone involved.

However, the most important takeaway is that a disorganized mind is not a permanently broken mind. Because this is a biological and structural misfire, it is highly responsive to the right interventions. 

Whether that means stabilizing a neurochemical imbalance with antipsychotic medication, treating an underlying medical delirium, or utilizing Cognitive Remediation Therapy to harness the brain’s innate Neuroplasticity, we can help rebuild those cognitive pathways.

By approaching disorganized thinking with clinical precision and deep empathy, we can help individuals find their narrative thread again and restore their connection to the world around them.

References:

1. National Institute of Mental Health (NIMH) – Schizophrenia
2. American Psychiatric Association (APA) – DSM-5-TR Fact Sheets
3. World Health Organization (WHO) – ICD-11 Mental and Behavioural Disorders
4. Brain & Behavior Research Foundation – Schizophrenia Overview