Irritability | |
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Specialty | Psychiatry |
Irritability is the excitatory ability that living organisms have to respond to changes in their environment. The term is used for both the physiological reaction to stimuli and for the pathological, abnormal or excessive sensitivity to stimuli. [1]
When reflecting human emotion and behavior, it is commonly defined as the tendency to react to stimuli with negative affective states (especially anger) and temper outbursts, which can be aggressive. Distressing or impairing irritability is important from a mental health perspective as a common symptom of concern and predictor of clinical outcomes. [2]
Irritability is the excitatory ability that living organisms have to respond to changes in their environment. [1] The term is used for both the physiological reaction to stimuli and for the pathological, abnormal or excessive sensitivity to stimuli. Irritability can be demonstrated in behavioral responses to both physiological and behavioral stimuli, including environmental, situational, sociological, and emotional stimuli.
In humans, irritability may be a significant transdiagnostic symptom or disposition that occurs across or at any point during the lifespan. [3] It is commonly defined as the tendency to react to stimuli with the experience of negative affective states (especially anger) and temper outbursts, which may or may not be aggressive. [4] [5] [6] This definition is well known to have similarities with the definitions of anger and aggression. New hypotheses [6] [7] and data-driven research [8] are focused on identifying what is unique to irritability, anger, and aggression. The definition is broad. It is also consistent with special definitions that are relevant to research and treatment. One definition is that irritability is a low threshold for experiencing frustration. [9] This definition is helpful for experiments because researchers can induce frustration by blocking desired rewards or doling out unexpected punishments. However, it is not particularly specific to irritability, as frustration is its own construct with a number of emotional and behavioral associations. [10] [11] A second prominent special definition describes a group of behavioral issues often occurring in those diagnosed with an autism spectrum disorder. [12] This deserves mention here because this version of irritability has been a commonly used in a number of clinical trials and defines the current US Food and Drug Administration irritability indication.
As an emotional and behavioral symptom in humans, someone is considered to be irritable when they have a short temper, become easily frustrated, or feel grouchy or grumpy. Caregivers may report tension in the household or fatigue. They may make accommodations to avoid provoking their dependents. Irritability is associated with a number of mental health conditions. [13] It is a defining characteristic of any mood disorder, such as bipolar, depressive, and disruptive mood dysregulation disorders. [13] It is also a major feature of a number of other disorders, including autism spectrum disorders, traumatic stress disorders, generalized anxiety disorder, etc. [6] Finally, it is a notable characteristic of delirium, dementia, hormonal change, metabolic disturbance, chronic stress, pain, and substance/medication withdrawal. [14]
Of course, given that irritability is not specific to any one condition, clinicians consider biological, social, psychological, and familial factors. Irritability may be an indicator of diagnosis, course of illness, or prognosis. For example, a major concern for clinicians is the time course of irritability. If a person presents as uncharacteristically irritable, then a clinician may become concerned a change or episodic illness, such as a neurologic insult or mood disorder. Understanding the time course of irritability is critical for establishing the diagnosis of pediatric bipolar disorder from disruptive mood dysregulation disorder. [15] In another example, chronic, severe irritability in older children (not including young children, e.g. preschool age, where normative irritability may be severe) [16] may predict later depression and anxiety [2] and suicidality. [17] [18] [19]
Several major neural systems have been implicated across a number of studies for idiopathic, chronic irritability. [20] These include the following: 1) prefrontal areas that underlying complex, goal directed behavior, especially inhibitory control and the regulation of emotions; 2) cortico-subcortical systems underlying reward processing, particularly in reaction to a frustrating stimulus; and 3) cortico-subcortical systems underlying threat and arousal processing, particularly in the context of social fairness or social threat.
Mania, also known as manic syndrome, is a mental and behavioral disorder defined as a state of abnormally elevated arousal, affect, and energy level, or "a state of heightened overall activation with enhanced affective expression together with lability of affect." During a manic episode, an individual will experience rapidly changing emotions and moods, highly influenced by surrounding stimuli. Although mania is often conceived as a "mirror image" to depression, the heightened mood can be either euphoric or dysphoric. As the mania intensifies, irritability can be more pronounced and result in anxiety or anger.
Borderline personality disorder (BPD), also known as emotionally unstable personality disorder (EUPD), is a personality disorder characterized by a pervasive, long-term pattern of significant interpersonal relationship instability, a distorted sense of self, and intense emotional responses. Individuals diagnosed with BPD frequently exhibit self-harming behaviours and engage in risky activities, primarily due to challenges in regulating emotional states to a healthy, stable baseline. Symptoms such as dissociation, a pervasive sense of emptiness, and an acute fear of abandonment are prevalent among those affected.
A mood swing is an extreme or sudden change of mood. Such changes can play a positive part in promoting problem solving and in producing flexible forward planning, or be disruptive. When mood swings are severe, they may be categorized as part of a mental illness, such as bipolar disorder, where erratic and disruptive mood swings are a defining feature.
Dialectical behavior therapy (DBT) is an evidence-based psychotherapy that began with efforts to treat personality disorders and interpersonal conflicts. Evidence suggests that DBT can be useful in treating mood disorders and suicidal ideation as well as for changing behavioral patterns such as self-harm and substance use. DBT evolved into a process in which the therapist and client work with acceptance and change-oriented strategies and ultimately balance and synthesize them—comparable to the philosophical dialectical process of thesis and antithesis, followed by synthesis.
Cognitive disengagement syndrome (CDS) is an attention syndrome characterised by prominent dreaminess, mental fogginess, hypoactivity, sluggishness, slow reaction time, staring frequently, inconsistent alertness, and a slow working speed. To scientists in the field, it has reached the threshold of evidence and recognition as a distinct syndrome.
In medicine and psychology, emotional lability is a sign or symptom typified by exaggerated changes in mood or affect in quick succession. Sometimes the emotions expressed outwardly are very different from how the person feels on the inside. These strong emotions can be a disproportionate response to something that happened, but other times there might be no trigger at all. The person experiencing emotional lability usually feels like they do not have control over their emotions. For example, someone might cry uncontrollably in response to any strong emotion even if they do not feel sad or unhappy.
Suicidal ideation, or suicidal thoughts, is the thought process of having ideas, or ruminations about the possibility of completing suicide. It is not a diagnosis but is a symptom of some mental disorders, use of certain psychoactive drugs, and can also occur in response to adverse life events without the presence of a mental disorder.
Emotional dysregulation is characterized by an inability in flexibly responding to and managing emotional states, resulting in intense and prolonged emotional reactions that deviate from social norms, given the nature of the environmental stimuli encountered. Such reactions not only deviate from accepted social norms but also surpass what is informally deemed appropriate or proportional to the encountered stimuli.
Hysteroid dysphoria is a name given to repeated episodes of depressed mood in response to feeling rejected.
Bipolar disorder in children, or pediatric bipolar disorder (PBD), is a rare mental disorder in children and adolescents. The diagnosis of bipolar disorder in children has been heavily debated for many reasons including the potential harmful effects of adult bipolar medication use for children. PBD is similar to bipolar disorder (BD) in adults, and has been proposed as an explanation for periods of extreme shifts in mood called mood episodes. These shifts alternate between periods of depressed or irritable moods and periods of abnormally elevated moods called manic or hypomanic episodes. Mixed mood episodes can occur when a child or adolescent with PBD experiences depressive and manic symptoms simultaneously. Mood episodes of children and adolescents with PBD are different from general shifts in mood experienced by children and adolescents because mood episodes last for long periods of time and cause severe disruptions to an individual's life. There are three known forms of PBD: Bipolar I, Bipolar II, and Bipolar Not Otherwise Specified (NOS). The average age of onset of PBD remains unclear, but reported age of onset ranges from 5 years of age to 19 years of age. PBD is typically more severe and has a poorer prognosis than bipolar disorder with onset in late-adolescence or adulthood.
Bipolar disorder not otherwise specified (BD-NOS) is a diagnosis for bipolar disorder (BD) when it does not fall within the other established sub-types. Bipolar disorder NOS is sometimes referred to as subthreshold bipolar disorder.
The Schedule for Affective Disorders and Schizophrenia (SADS) is a collection of psychiatric diagnostic criteria and symptom rating scales originally published in 1978. It is organized as a semi-structured diagnostic interview. The structured aspect is that every interview asks screening questions about the same set of disorders regardless of the presenting problem; and positive screens get explored with a consistent set of symptoms. These features increase the sensitivity of the interview and the inter-rater reliability of the resulting diagnoses. The SADS also allows more flexibility than fully structured interviews: Interviewers can use their own words and rephrase questions, and some clinical judgment is used to score responses. There are three versions of the schedule, the regular SADS, the lifetime version (SADS-L) and a version for measuring the change in symptomology (SADS-C). Although largely replaced by more structured interviews that follow diagnostic criteria such as DSM-IV and DSM-5, and specific mood rating scales, versions of the SADS are still used in some research papers today.
Disruptive mood dysregulation disorder (DMDD) is a mental disorder in children and adolescents characterized by a persistently irritable or angry mood and frequent temper outbursts that are disproportionate to the situation and significantly more severe than the typical reaction of same-aged peers. DMDD was added to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-V) as a type of depressive disorder diagnosis for youths. The symptoms of DMDD resemble many other disorders, thus a differential includes attention-deficit/hyperactivity disorder (ADHD), oppositional defiant disorder (ODD), anxiety disorders, and childhood bipolar disorder, intermittent explosive disorder (IED), major depressive disorder (MDD), and conduct disorder.
Sex and gender differences in autism exist regarding prevalence, presentation, and diagnosis.
Emotions play a key role in overall mental health, and sleep plays a crucial role in maintaining the optimal homeostasis of emotional functioning. Deficient sleep, both in the form of sleep deprivation and restriction, adversely impacts emotion generation, emotion regulation, and emotional expression.
Kathleen Ries Merikangas is the Chief of the Genetic Epidemiology Research Branch in the Intramural Research Program at the National Institute of Mental Health (NIMH) and an adjunct professor of epidemiology at the Johns Hopkins Bloomberg School of Public Health. She has published more than 300 papers, and is best known for her work in adolescent mental disorders.
Connie Kasari is an expert on autism spectrum disorder and a founding member of the Center for Autism Research and Treatment (CART) at the University of California, Los Angeles (UCLA). Kasari is Professor of Psychological Studies in Education at UCLA and Professor of Psychiatry at the David Geffen School of Medicine at UCLA. She is the leader of the Autism Intervention Research Network for Behavioral Health, a nine-institution research consortium.
Youth suicide in India is when young Indian people deliberately end their own life. People aged 15 to 24 years have the highest suicide rate in India, which is consistent with international trends in youth suicide. 35% of recorded suicides in India occur in this age group. Risk factors and methods of youth suicide differ from those in other age groups.
Ellen Leibenluft is an American psychiatrist and physician-scientist researching the brain mechanisms mediating bipolar disorder and severe irritability in children and adolescents. She is a senior investigator and chief of the mood dysregulation and neuroscience section at the National Institute of Mental Health.
The Early Start Denver Model (ESDM) is a form of intervention directed at young children that display early signs of being on the autism spectrum proposed by American psychiatrists Sally J. Rogers and Geraldine Dawson. It is intended to help children improve development traits as early as possible so as to narrow or close the gaps in capabilities between the individual and their peers.
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