Bipolar, anxiety, OCD, dissociative disorders

Bipolar disorders

Bipolar disorders are a group of mental health conditions marked by extreme shifts in mood, energy, and activity level that go beyond typical emotional ups and downs. These shifts can include episodes of one or more of the following:

• Mania: An abnormally elevated or irritable mood with increased energy. Symptoms can include decreased need for sleep, rapid speech, inflated self-esteem, and risky behavior. During mania, a person may feel euphoric or unusually productive, while others may experience them as irritable or unpredictable.
• Hypomania: Similar features to mania, but less severe and not associated with major impairment in daily functioning.
• Depression: Persistent sadness, loss of interest in activities ( anhedonia), fatigue, feelings of guilt or worthlessness, sleep and appetite changes, or difficulty concentrating.

The two bipolar disorders you need to know for AP Psychology are:

• Bipolar I disorder: Involves at least one manic episode (severe enough to interfere with daily functioning and sometimes requiring urgent care or hospitalization). Depressive or hypomanic episodes may also occur but are not required for diagnosis.
• Bipolar II disorder: Involves at least one hypomanic episode and at least one major depressive episode (with no history of manic episodes).

The intensity and frequency of mood episodes vary widely. Some people experience rapid cycling (multiple mood episodes within a short time), while others have long stable periods interrupted by occasional episodes.

Multiple factors may contribute to the development of bipolar disorders, including:

• Biological: Neurochemical imbalances (such as dopamine, serotonin, and norepinephrine) may affect mood regulation. Brain regions such as the prefrontal cortex and amygdala may function differently in people with these disorders. Other biological processes linked to bipolar disorders include hormone dysfunction, inflammation, immune changes, and metabolic processes.
• Genetics: A family history of mood disorders is correlated with a higher likelihood of developing a similar condition.
• Social: Long-term exposure to stressful or unstable environments can disrupt emotional balance and may trigger episodes in vulnerable individuals.
• Behavioral: Disrupted sleep, irregular routines, or substance use may maintain mood instability or interfere with emotional regulation.
• Cognitive: Persistent negative thought patterns, distorted beliefs, or difficulty processing emotional experiences may worsen mood instability or contribute to relapse.
• Cultural: Cultural expectations and stigma can shape how symptoms are expressed, interpreted, and treated, influencing recognition and treatment seeking.

What is the main difference between bipolar disorders and depressive disorders in terms of mood symptoms?

Anxiety disorders

Anxiety disorders are a group of mental health conditions marked by intense, persistent fear and/or anxiety that is out of proportion to the situation and disrupts daily life. Fear is an immediate response to a present threat, while anxiety involves anticipation of a future threat.

Anxiety often includes:

• Physical symptoms (such as rapid heartbeat, muscle tension, sweating, shortness of breath, and stomach discomfort)
• Cognitive symptoms (such as persistent worry, intrusive thoughts, or difficulty concentrating)

Because the response feels overwhelming, people may avoid feared situations, which can interfere with social, occupational, or other important areas of functioning.

Disorders

Although there are many anxiety disorders, below are the only anxiety disorders you need to know for AP Psychology.

Specific phobia

An excessive, irrational fear of a specific object or situation that leads to avoidance. Examples include acrophobia (fear of heights) and arachnophobia (fear of spiders).

Agoraphobia

An excessive, irrational fear of situations where escape may be difficult or help may not be available. This fear is often connected to past panic attacks or worries about losing control. Examples include being in crowds, standing in lines, leaving home alone, using public transportation, or being in enclosed spaces such as theaters or stores.

Panic disorder (PD)

Marked by recurrent panic attacks: sudden, unexpected surges of intense fear or anxiety. Panic attacks can include physical symptoms (such as chest pain, dizziness, or nausea) and cognitive fears (such as losing control or believing you’re dying). Panic disorder often leads to ongoing worry about future attacks and behavior changes to avoid triggers.

PD can also be shaped by cultural context. One example is ataque de nervios, a distress response predominantly observed among people of Caribbean and Iberian descent, in which emotional overwhelm may be expressed through culturally specific symptoms and rituals (such as particular verbal expressions or praying). This shows how culture can influence how anxiety is experienced and communicated.

Social anxiety disorder

An intense fear of social situations in which a person may be watched or judged by others. Social anxiety disorder is distinct from agoraphobia, but a person with social anxiety disorder may also experience agoraphobia.

Social anxiety can include culturally specific expressions, such as fear of offending others. One culturally influenced form is taijin kyofusho (predominantly observed among Japanese people), in which the person fears others are judging their body as offensive, unpleasant, or undesirable.

Generalized anxiety disorder (GAD)

Chronic, excessive worry about nonspecific concerns (often everyday events) that is difficult to control. The worry lasts for more than six months and is often accompanied by restlessness, fatigue, irritability, difficulty concentrating, muscle tension, and sleep problems.

Possible contributing factors

As with other mental health disorders, anxiety disorders may result from an interaction of biological, psychological, and environmental influences, such as:

• Learned associations where neutral stimuli become linked to fear responses. Avoidance behaviors may temporarily reduce anxiety but also maintain the disorder.
• Maladaptive thinking or emotional responses where biased threat perception worsens anxiety symptoms.
• Biological factors include inherited traits (genetics), heightened amygdala responsiveness, neurotransmitter imbalances (such as serotonin or GABA), or dysfunctions in other biological processes (such as nutritional deficiencies, hormones, digestive, or metabolic problems).

Obsessive-compulsive and related disorders

Obsessive-compulsive and related disorders involve persistent obsessions (intrusive thoughts or impulses) and/or compulsions (repetitive behaviors). Both can cause significant distress.

Compulsions are often repetitive, go beyond what is logically necessary, and are not realistically connected to the feared outcome. Even so, the person feels driven to perform them to reduce distress (for example, believing the behavior can prevent a feared event).

Key disorders include:

• Obsessive-compulsive disorder (OCD): Recurrent, intrusive, unwanted obsessions and/or compulsions. Common obsessions include fears of contamination, aggressive impulses, or a need for symmetry. Common compulsions include excessive cleaning, checking, counting, or arranging. A common cycle is: obsession → anxiety → compulsion → temporary relief. The relief reinforces the compulsion through negative reinforcement.
• Hoarding disorder: Persistent difficulty discarding possessions (regardless of value), leading to accumulation and clutter that can impair living spaces. Anxiety often occurs at the thought of discarding items, even when they have little practical use.

Possible contributing causes include, but are not limited to:

• Conditioned associations (among or between stimuli): Neutral cues become linked to anxiety, reinforcing compulsions that reduce discomfort.
• Maladaptive thinking or emotional responses: Cognitive distortions such as inflated responsibility or thought-action fusion (believing that thinking about harm is equivalent to causing it) are common.
• Biological or genetic sources: Studies suggest abnormalities in brain circuits that regulate behavior and serotonin neurotransmission, with a hereditary component in many cases.

What is the main difference between distress experienced in anxiety disorders and the distress associated with obsessive-compulsive disorder (OCD)?

Dissociative disorders

Dissociative disorders involve disruptions in the normal integration of memory, consciousness, perception, identity, emotion, behavior, bodily control, and body representation.

Some disorders in this group include:

• Dissociative amnesia: An inability to recall important personal information, usually related to traumatic or stressful events, that goes beyond typical forgetfulness. Dissociative fugue (a subtype of dissociative amnesia) involves wandering or traveling away from home along with temporary confusion about one’s identity or past.
• Dissociative identity disorder (DID): The presence of two or more distinct identity states, each with its own way of perceiving and relating to the environment, along with memory gaps for everyday events, personal history, or trauma. Stress or trauma reminders often trigger identity shifts. Cultural and societal expectations can influence symptom expression, including the number and traits of alternate identities.

These experiences are not caused by substances or medical conditions. They often reflect a psychological response to overwhelming stress or trauma, functioning as an escape or defense mechanism from intolerable experiences. As with other psychological conditions, cognitive, neurological, biological, and genetic factors may also contribute.