CP Flashcards
Who first showed immune reactivity could be conditioned?
Ader 1974. Rats were given cyclophosphamide and saccharine solution –> when just given saccharine solution –> led to immune suppression
What is the age of onset of Tourette’s disorder?
5 to 8 years of age
Children with separation anxiety disorder have an increased risk of what?
Panic disorder
What percent of probands have a first degree relative with OCD?
30%
What recombination fraction indicates complete linkage?
0.0; 0.5 = independent assortment
What is the monozygotic concordance rate for autism?
90%. Risk for non MZ siblings is 3 to 8%
Cocaine can be measured as far back as the first trimester in an infant. How?
By hair or meconium samples
What is rate of fetal alcohol syndrome in children of mother’s with alcoholism?
2.5 to 10%
What are some findings for infants exposed to prenatal opiates?
Decreased birth weight and head circumference. Increased risk of sudden death. At the age of 1, more active, less attentive and decreased motor coordination
What are the effects of prenatal THC exposure?
Tremor and increased startle response the first one to two weeks of life.
What are the effects of prenatal cocaine exposure?
Increased arousal, inattention, reactivity to stress; effect on the developing mono-amine system. Increased risk of IUGR by 4. However, Bayley Scales are okay
What can be features of mother-child interactions in substance using mothers?
Impoverished use of language; restriction of exploration (seen as ‘getting into things’); decreased response of mother to infant social bids
What percent of widows are depressed after the death of a spouse?
16% at 1 year (42% immediately)
What percent of children are born to unmarried mothers?
25%
What percent of preschoolers are cared for by their father when mother is at work?
23%
What percent of mothers who were abused abuse their own children?
20%
What is failure to thrive (FTT)?
Wt and Ht less than 5% or deviation off growth curve over time > 2 major percentiles
What has MRI shown in anorexia nervosa?
Enlarged lateral ventricles and cortical sulci a/w degree of weight loss
By adulthood what percent of those with Tourette’s have OCD?
40%
Is ADHD genetic or environmental?
Some say two subtypes
What are anatomic findings of the brain in ADHD?
Loss of assymetry of the caudate and changes in the corpus callosum
Paterson (1982) found what two symptom clusters in conduct disorder?
Problem of aggression and problem of theft
Wolf (1971) found what two symptom clusters for conduct disorder?
The aggressive-overactive and the antisocial
In a longitudinal study by Cloninger what traits were risk factors for juvenile delinquency?
High impulsivity, low anxiety, and low reward dependence (Definition: individuals high in reward dependence are tender-hearted, sensitive, socially dependent, and sociable; Individuals low in reward dependence are practical, tough-minded, cold, socially insensitive, irresolute, and indifferent if alone)
What are family factors in conduct disorder?
A large family size with the child most at risk a middle child separated by several years from an older brother. Absence of bio-father is not mitigated by presence of stepfather or socio-economic class
Family risk factors for juvenile violence are?
Parental criminality; physical discipline, poor supervision, low attachment; child maltreatment; parental conflict; large family size; family poverty
What are the rates for fears, worries, and scary dreams in healthy kids?
76% have fears; 68% worries; 81% scary dreams
What does the literature show about custody regarding boys and girls about whether they are with their mother or father?
Females fair less well with father custody. Boys are less well adjusted with mother custody but this is improved with father contact
What communication difficulties are present in patients with schizophrenia?
Pragmatics, prosody, auditory processing and abstract language
What percent of patients refractory to other antipsychotics are responsive to clozapine?
30%
What percent of child and adolescent patients with bipolar disorder have anxiety?
Child 33%; Adolescent 12%
What is the lifetime risk of major depressive disorder in children if parents have depression?
15 to 45%
Do stressful life events influence depression in children?
Unclear. It appears remarriage of parent for male and death of parent for female does. Lewisohn found that death of parent or having less than 2 parents did not specifically correlate with MDD
What are symptoms of toxoplasmosis?
Chorioretinitis, neurologic deficits at birth or later in infancy and childhood. 90% of children effected have an intellectual disability and 80% have seizures. It is acquired from the oocysts of cats or uncooked meat
What are cytomegalo symptoms?
Jaundice, hepatosplenomegaly, anemia, neuro abnormalities. Most newborns however are asymptomatic; some can also have delayed sequelae such as school difficulties
When is the greatest risk of maternal transmission of rubella during pregnancy
Majority first 12 weeks; then 13-14 weeks; then end of 2nd trimester. Results in deafness, cataracts, chorioretinitis, severe intellectual disability (25%), spasticity
What happens to school achievement in HIV infected kids?
67% normal at 9.5 years. Have difficulties in visual spatial, time orientation, speech and language delays
What predicts psychopathology after a traumatic brain injury?
Persistent neurologic abnormalities 2.5 years out is the biggest predictor. Other factors are pre-injury behavior, family adversity. Younger children suffer from more cognitive difficulties although age is not a factor in psychopathology.
What is the twin concordance rate for OCD?
80% MZ, 25% DZ
For children who were exposed to heroin in utero, what percent are living with their bio mother?
12% are with bio M; 60% with family or friends; 25% adopted. At the age of 1 yo half live away from their bio mother
In Werner’s study of children in Hawaii what infant temperaments were associated with resiliency?
Active, affectionate, cuddly, good natured, easy to deal with
What are some classifications by Zeanah for attachment?
Disorder of non-attachment, secure base distortions, disrupted attachment disorder. Boris and Zeanah use the term “disorder of attachment” to indicate a situation in which a young child has no preferred adult caregiver. Such children may be indiscriminately sociable and approach all adults, whether familiar or not; alternatively, they may be emotionally withdrawn and fail to seek comfort from anyone. Boris and Zeanah also describe a condition they term “secure base distortion”. In this situation, the child has a preferred familiar caregiver, but the relationship is such that the child cannot use the adult for safety while gradually exploring the environment. Such children may endanger themselves, may cling to the adult, may be excessively compliant, or may show role reversals in which they care for or punish the adult. The third type of disorder discussed by Boris and Zeanah is termed “disrupted attachment”. This type of problem, which is not covered under other approaches to disordered attachment, results from an abrupt separation or loss of a familiar caregiver to whom attachment has developed. The young child’s reaction to such a loss is parallel to the grief reaction of an older person, with progressive changes from protest (crying and searching) to despair, sadness, and withdrawal from communication or play, and finally detachment from the original relationship and recovery of social and play activities.
What are Nagy’s (1948) categories for kids’ concept of death?
3-5 year olds, long sleep; 5-9, people die, not them, not everyone; 9-10+ death inevitable and may happen to me (The grasping of death has been revised downward since)
What percent of children will lose a parent to any death by age 15?
4% (7,000 to 12,000 kids lose a parent to suicide every year)
After the death of a parent when do behavioral problems appear to show up?
Two years later; this is impacted by childcare. 37% of prepubertal children meet criteria for depression at 1 month
In anorexia what is the reason for amenorrhea?
Hypothalamic hypogonadism
What happens to FSH and LH in anorexia?
decreases to levels typical of puberty
In anorexia, does amenorrhea cease with weight gain
+/-
Exogenous administration of GnRH (gonadotropin releasing hormone) in anorexia does what to FSH and LH levels?
Increases them, indicating the pituitary is intact and the problem is at the level of the hypothalamus
Describe the actions or phase of gonadotropin secretion in children and adolescents?
2 to 4 year olds, increased gonadotropin secretion; juvenile phase of quiet activity; adolescent phase of increased amplitude and duration of GnRH
What cytokines are associated with psychosocial findings?
IL-1, IL-6, and TNF-alpha. Lead to social withdrawal, decreased energy, increased sleep, poor appetite. IL-6 specifically leads to decreased mood and appetite. Anxiety has been a/w with decreased IL-2 production; PTSD with decreased natural killer cells and T-lymphocytes
What are characteristics of psychosocial dwarfism?
Growth failure and developmental delay with hyposecretion of growth hormone; delayed bone age without malnutrition; decreased basal secretion of GH; onset 2-3 years; parents have psychiatric disturbance; blunted GH response (to challengers); separation from mother leads to increased sensitivity of HPA axis
Amygdala growth is greater in boys or girls?
Boys (there are more androgen receptors in the amygdala)
Hippocampal growth is greater in boys or girls?
Girls (there are more estrogen receptors in the hippocampus)
The peak differentiation of neurons and formation of synapses occurs at what age?
The second year postnatally (i.e. one to two)
What is Wilson’s disease?
An error of copper metabolism. There is degeneration of the basal ganglia; liver cirrhosis; presents as hepatitis and/or dystonia and gait disturbance in mid childhood; other findings include intellectual changes, affective lability, anxiety, psychotic symptoms, tremor, dysarthria, ataxia, choreoathetosis. There is partial recovery with oral chelation agents
When is the onset of multiple sclerosis and what is its etiology?
Most cases occur after puberty. The etiology is autoimmune
What does the thalamus do?
It is the ‘Grand Central Station’ of the sensations. There is decreased verbal fluency with central lesions; decreased pattern recognition with right lesions
What age defines precocious puberty?
Less than 8 years old
What are the three classifications of precocious puberty?
Peripheral, central and combined. This leads to premature epiphyseal closure
What is peripheral precocious puberty?
Excessive production of adrenal/gonadal steroids or exogenous ingestion
What is central precocious puberty?
Premature activation of HPG axis by GnRH or gonadotropins
Lesion of the paraventricular nucleus leads to what?
Hyperphagia and hypothalamic obesity
Is the activity of the hypothalamic pituitary axis increased or decreased in anorexia nervosa?
Increased
Is growth hormone increased or decreased in anorexia nervosa?
Increased
What happens to T3 in anorexia nervosa?
Decreased but T4 and TSH are the same
A larger number of depressed patients than healthy controls have increased antibodies to what?
The thyroid. Antimicrosomal and antithyroglobulin antibodies
Is oxytocin increased or decreased in autism?
Oxytocin is decreased in autism (1/2 of typical controls)
The hypothalamic and amygdala mediated responses in shy children are hyperactive or hypoactive?
Hyperactive
What is the function of the basal ganglia?
Modulate motor and some autonomic function. Maintain attention, regulate motor, and information flows to and from the cortex
The sexually dimorphic nuclei are involved in what?
Sexual orientation and gender identity. It is found in the pre-optic area of the hypothalamus. It is increased in men (decreased in transexual men)
How does increased HPA activation damage the hippocampus?
Increased HPA leads to increased corticosteroids which indirectly damage neurons via NMDA. Loss of neurons leads to cognitive and memory impairments, stress and anxiety disorder
Frontal lobe activation on the left leads to depression or happiness?
Happiness. Decreased activation of the left frontal lobe leads to depression
Describe the synthetic pathway of serotonin?
Tryptophan–tryptophan hydroxylase–> 5HTP(phan) –L-aromatic decarboxylase –> 5HT (5-hydroxytryptamine) –MAO–> 5-HIAA 5-Hydroxyindoleacetic acid
Describe the synthesis and catabolism of norepinephrine and dopamine?
Tyrosine + tyrosine hydroxylase–> DOPA + L-Aromatic AA decarboxylase–>Dopamine. Dopamine + Dopamine betahydroxylase–> Norepinephrine –> Epinephrine. Dopamine + MAO or COMT –> homovanillic acid Norepinephrine + MAO or COMT–> MHPG –> Vanillylmandelic acid
When is the neuronal density in the brain the greatest?
There is a dramatic decrease right before birth and steady decrease to 6 to 15 months and then there are adult values
When is synaptic density the greatest?
Increases before birth until 8 months in the visual cortex; 3 years in the auditory cortex; 1 to 3 years in the prefontal cortex. It then decreases to adult values from the age of 12 to mid-adolescence. The dendritic neuronal architecture matures until late adolescence
How late does myelinization last and where?
3rd decade of life in the intracortical association areas
How much does an infant sleep at birth?
16 hours
How much does an adolescent sleep?
8 hours
What is the percent of time spent in REM sleep at birth and at adulthood?
50% at birth. 20% at age 3 (adult values)
Infants enter REM sleep right away. At what age is sleep onset without REM?
2 1/2 months
Does sensory inhibition increase or decrease with age?
Increase
At what age is REM identified?
28 to 30 weeks (prenatally)
Describe neuronal synapses before and after puberty
Before puberty there is formation and elimination (competitive elimination). After puberty, learning and memory depend on strength of already existing synapses
What is the chromosomal deletion in Williams Syndrome?
7
Wiliams Syndrome is characterized by what clinical presentation?
Intellectual disability, cardiovascular disease, adequate verbal skills, cannot integrate complete picture; play instrument. 1/20,000
What chromosome is affected in Angelman Syndrome?
15 (deletion or two copies)
What are the clinical characteristics of Angelman Syndrome?
Intellectual disability, no speech, large mandible with open mouth expression, hypotonia, motor delays. 1/10,000
What is the clinical presentation of Prader-Willi?
Obesity, temper tantrums, aggression, OCD. 1/10,000
What chromosome is affected in Prader-Willi?
Chromosome 15 q11-q13 deletion from father. Two copies also a cause
What is lissencephaly?
Most common disorder of normal migration of neurons. There are 4 cortical layers instead of the normal 6. There is a smooth cortical surface
What percentage of those with the Fragile X gene are not intellectually impaired?
20%
What gene is affected in Fragile X?
FMR-1
Which repeat defect is there in Fragile X?
CGG (200-1000 vs. 29 found normally)
What is often the first clinical symptom of Rett’s disorder?
Loss of purposeful hand movements
What chromosome is affected in Rett’s?
Xq28
Which protein is implicated in Rett’s?
MECP2 (a mutation leads to inappropriate gene expression and its protein product)
When a young child learns two languages they are represented by a single language center or two?
A single language center. In adults, a new language is represented by a new language center separate from the primary language center
How many genes are there in a person?
80,000
How many genes are present in the CNS?
30,000
Do the anterior cingulate and hippocampus show increased or decreased regional blood flow in PTSD?
Decreased
Is reading dysfunction located in the left or right hemisphere?
Left hemisphere
Which brain area has shown an incraese in size in PANDAS?
Basal ganglia
Are the basal ganglia increased or decreased in size in Tourette’s disorder?
Decreased, especially putamen and globus pallidus. There is also reduced assymetry
Is cortical blood flow and metabolism increased or decreased in the basal ganglia in Tourette’s?
Decreased
Which area of the brain shows increased activity during efforts at tic suppression?
Right caudate nucleus
Obsessive-compulsive disorder shows an increase or decrease in caudate volume?
Decrease
Patients with OCD show an increase or decrease in glutamate?
Increased glutamate in the caudate, which normalizes with treatment in one study
In patients with OCD is there an increase or decrease in the thalamus?
Increase
What is the most consistent finding in childhood onset schizophrenia?
Decreased brain size (especially frontal-temporal) and increased ventricles
Is the NAA (N-acetylaspartate) to Cr (creatine-phosphocreatine) ratio increased or decreased in schizophrenia?
Decreased
Which area in the temporal lobe fails to light up in autism in facial recognition tasks?
Fusiform gyrus
Velocardiofacial syndrome has which chromosomal deletion?
22q11.2
What percentage of patients with velocardiofacial sydnrome have schizophrenia?
30%
Do patients with velocardiofacial syndrome have increased or decreased brain size?
Decreased
Children born weighing less than 1500 g have a decreased IQ score by how much?
15 points (1 SD)
What percentage of children born weighing less than 1500 g repeat a grade by age 8?
20% (although, in preemies, age based on birthdate rather than ‘due date’ means developmentally younger for age)
What are the components of the basal ganglia?
Caudate nucleus, putamen, globus pallidus, subthalamic nuclei, substantia nigra.
What does the basal ganglia do?
Influences movement and muscle tone and also mediates higher cognitive functions
The frontal, parietal, temporal, and occipital gray matter each peak at what age?
Frontal gray, 11 year old for females and 12 year old for males and then decreases in adolescence; same for parietal gray; temporal gray peaks at age 16; occipital grey increases mildly through childhood and adolescence. This differing gray matter development is uniquely human
What does magnetic resonance spectroscopy do?
Measures concentrations of chemical compounds in the brain. It has poor temporal and spatial resolution
What is diffusion tensor imaging?
MRI technology that looks at orientation of fiber tracks. Useful in strokes and multiple sclerosis.
Which is the correct order of spatial resolution for MRI, CT, PET, SPECT?
MRI>CT>PET>SPECT
When are testicular hormones first secreted?
8th week of fetal life
In Tourette’s Disorder and OCD, neuronal circuits fail in what way?
They reverberate rather than switch off (failure to self inhibit)
Which major anatomical areas of the brain have deficits in schizophrenia?
Frontal and temporal
Is brain size increased or decreased in Down’s syndrome?
Decreased by 25% but not so until age 3 to 5
Which gender exhibits more lateralization of the brain?
Males
What is the function of the amygdala?
It is a/w with fear provoked aggression. Lesions result in decreased control, spontaneity, flexibility, affect, cognition
Do children with one psychotic parent or one depressed parent and a healthy other parent have increased psychopathology?
No [what about genetic contribution?]. Absence of hostility is a key factor
Who appears more affected by an ill parent, boys or girls?
Boys
Is suicidality heritable?
Yes
Is mental illness of a parent or overall family function the greater mediator of mental illness or difficulties in a child?
Family function and not parent illness per se
Parent child conflict is usually characterized by what strategies?
Negative, insensitive, harsh (rather than reassuring, negotiating, and compromising)
Mothers in high conflict marriages use what technique with their children?
Guilt and anxiety inducing ones
What percent of mothers of preschool children have reported depressive symptoms?
40%
How many substantiated reports of child maltreatment are there per year?
1,000,000 (with 1000 deaths per year)
What year were special education laws revised to mandate special services for 3 to 5 year olds and allow states early intervention from 0 to 3?
1986
What is the most widely used neonatal test?
Brazelton Neonatal Behavioral Assessment Scale
What is the most widely used infant and toddler test?
Bayley Scales of Infant Development (1 to 42 months)
What infant/toddler screening test can be used with language and visually impaired children?
DASI. Developmental Activity Screening Inventory
What is subacute sclerosing panencephalitis?
Chronic progressive encephalitis. Persistent infection of measles virus. Occurs rarely after one has had measles. Symptoms emerge 4 to 15 years later. There is personality change, poor school function, myoclonic seizures, involuntary movements, ataxia, dementia. 1/1,000,000
Most children with HIV infection obtain it how?
Vertical (maternal) transmission
How does one diagnose lyme disease?
IgM antibodies to B. Burgodoferi or by polymerase chain reaction
What fraction of children have lyme neuroborreliosis when infected?
1/620. Psychosis can be seen
When is syphilis most likely to be acquired by a fetus?
4 to 7 months gestation. General paresis occurs 6 to 21 years later. Treatment is with Penicillin G
What percent of survivors of meningitis have sequelae?
50%. Lower IQ, hearing loss. The sequelae are worse for infants and if treatment is delayed
What is most common cause of meningitis in those greater than a month old?
S. Pneumoniae, N. Meningitidis, B. Hemolytic Strep, Listeria. Starts with an upper respiratory infection
What is the most common type of psychiatric disorder after a traumaic brain injury?
Postconcussive–>labile, aggressive, disinhibited
What do prospective studies of traumatic brain injury outcomes show about psychopathology?
After accounting for premorbid psychopathology, severe but not mild TBI increases risk of psychopathology
What is post-concussional syndrome?
Headache, dizziness, fatigue, decreased concentration, memory, irritability, anxiety, insomnia, hypochondriasis, hypersensitivity to noise, photophobia, seizure like symptoms
Traumatic brain injury incidents peak at what age?
15 years
What is the definition of a concussion?
Transient but widespread loss of neuronal function
What is the most common lesion on MRI after closed head injury?
Diffuse axonal injury. Clinical sign is loss of consciousness. There are small focal injuries in white matter tracts. The second most common finding on MRI is cortical contusion
What brain area is involved in the acquisition of emotional memories?
The amygdala
What area of the brain constrains impulsive acts?
Orbital-frontal cortex
What area of the brain is involved in delay gratification
Ventromedial prefrontal cortex
Behavioral inhibition is related to what four executive neuropsychological functions?
Working memory, self-regulation, internalization of speech, reconstruction. Separation of affect as well
Is there a correlation between IQ and suicidal behavior?
No. Mood disorder, alcohol use, personality disorder, and impulsive-aggressive traits are correlated
What does the evidence suggest regarding the use of lithium in adults with major depressive disorder and bipolar and suicide?
Reduced the rate by 9 times (discontinuing lithium led to 7 times more attempts and 9 times more completions). Tondo et al. 1997 reviewed 28 studies involving 17,000 patients. More recent evidence supports this, too, Song et al. 2017
What is the outcome for children with depression?
Based on 10 to 15 year follow-up of pre-pubertally depressed children, the outcome was 3 times an increase of suicide attempts, bipolar disorder, and adult depression (when psychopathology continued)
Is there a gender difference for severity or recurrence of childhood depression?
No
At what age does a gender difference emerge for depression?
15 to 18 years of age
What symptoms of depression are present equally in children and in adolescents?
Decreased mood, decreased concentration, insomnia, suicidal thinking.
What are the differences in children and adolescents in their manifestation of depression?
Child: depressed appearance, somatic, psychomotor agitation, separation anxiety, phobias. Adolescents: drug use, hopelessness, hypersomnia, anhedonia, weight changes. Both groups have decreased mood and concentration, insomnia, suicidal thinking
What percentage of OCD patients respond to OCD treatment
50% have 25 to 40% reduction in symptoms
What percent of children 12 and under who are raped know the attacker?
96%. 20% are fathers, 16% are relatives; 50% are friends or acquaintances; others less known/close; 4% are strangers
When child sexual abuse involves abuse by females what percentage is by mother only?
3.8%. 12% by both parents. 11% by mother with others. 2.2% by female relative.
When are children most vulnerable for sexual abuse?
8 to 12 years of age
What percentage of child sexual abuse offenders are adolescents?
50%
What percentage of child sexual abuse reports are concluded to be false?
2% (6% for adult reports).
What percentage of children recant statements of sexual abuse?
22%. Recantation should be viewed as part of disclosure process since the allegations rarely prove false
In confirmed cases of sexual abuse, what percentage of time do children intially deny it or are tentative in disclosing?
The vast majority
In the Isle of Wright cross sectional study, what percentage of 11 year olds have school phobia?
3%