Neurobiological Theories and Psychopharmacology
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Questions and Answers

What happens to neurotransmitters after they are released into the synapse?

  • They are destroyed immediately and have no further function.
  • They remain bound to the receptor cells indefinitely.
  • They are either reuptaken, metabolized by enzymes, or diffuse away. (correct)
  • They are converted into hormones for systemic circulation.

Which neurotransmitter is synthesized from the amino acid tyrosine?

  • Norepinephrine
  • Serotonin
  • Epinephrine
  • Dopamine (correct)

What is the primary location of norepinephrine in the nervous system?

  • Cerebrum
  • Brain stem (correct)
  • Spinal cord
  • Cerebellum

Which function is primarily associated with the frontal lobes of the brain?

<p>Regulating emotions and moral behavior (D)</p> Signup and view all the answers

How do antipsychotic medications primarily function?

<p>By blocking dopamine receptors (A)</p> Signup and view all the answers

Which lobe of the brain is primarily responsible for auditory processing?

<p>Temporal lobe (D)</p> Signup and view all the answers

Serotonin is primarily involved in which function?

<p>Regulating sleep patterns (C)</p> Signup and view all the answers

What condition has been linked to abnormalities in dopamine transmission?

<p>Parkinson’s disease (C)</p> Signup and view all the answers

What is the role of the corpus callosum in the brain?

<p>Connecting the two hemispheres (B)</p> Signup and view all the answers

Which neurotransmitter has been implicated in anxiety disorders due to excess levels?

<p>Norepinephrine (A)</p> Signup and view all the answers

What brain structure is primarily responsible for coordinating movements and maintaining posture?

<p>Cerebellum (C)</p> Signup and view all the answers

What is the main effect of the fight-or-flight response controlled by epinephrine?

<p>Increasing blood flow to muscles (A)</p> Signup and view all the answers

Which amino acid is a precursor for serotonin synthesis?

<p>Tryptophan (A)</p> Signup and view all the answers

Which part of the brain is involved in the control of complex movements?

<p>Frontal lobes (B)</p> Signup and view all the answers

What is the primary function of the frontal lobes in the brain?

<p>Organizing thoughts and emotions (C)</p> Signup and view all the answers

What is the primary role of antidepressant drugs?

<p>To primarily address major depressive illness and anxiety disorders (D)</p> Signup and view all the answers

Which part of the brain is primarily involved in coordinating movements and maintaining posture?

<p>Cerebellum (C)</p> Signup and view all the answers

What does the half-life of a drug refer to?

<p>The time it takes for half of the drug to be eliminated from the bloodstream (B)</p> Signup and view all the answers

What role does the hypothalamus play in the brain?

<p>Temperature regulation and appetite control (A)</p> Signup and view all the answers

Which neurotransmitter is primarily linked to smooth coordinated movements?

<p>Dopamine (C)</p> Signup and view all the answers

Which neurotransmitter is most commonly involved in mood regulation?

<p>Serotonin (D)</p> Signup and view all the answers

What is akathisia characterized by?

<p>Intense restlessness and a need to move (A)</p> Signup and view all the answers

Which neurotransmitter is associated with stress and anxiety?

<p>Norepinephrine (B)</p> Signup and view all the answers

In the context of psychopharmacology, what is a black box warning?

<p>A highlighted warning regarding serious side effects of a medication (B)</p> Signup and view all the answers

Which of the following is a potential effect of dopamine in the brain?

<p>Regulates attention and mood responses (B)</p> Signup and view all the answers

Which brain structure regulates activity, sensation, and emotion?

<p>Thalamus (C)</p> Signup and view all the answers

What is a primary function associated with the temporal lobes?

<p>Smell and hearing (D)</p> Signup and view all the answers

What major risk does serotonin syndrome present?

<p>Possibility of coma or death (C)</p> Signup and view all the answers

What is the significance of the kindling process in neurological disorders?

<p>It describes the escalation of seizure activity over time (A)</p> Signup and view all the answers

Which lobe is primarily involved in language generation and visual perception?

<p>Occipital Lobe (D)</p> Signup and view all the answers

What is a common barrier to maintaining a medication regimen for mental illness?

<p>Lack of understanding of medication importance (C)</p> Signup and view all the answers

Dystonia can be defined as:

<p>Acute muscular rigidity and cramping (B)</p> Signup and view all the answers

What kind of drug is specifically used to treat anxiety disorders and insomnia?

<p>Anxiolytics (B)</p> Signup and view all the answers

Which category of drugs is used to treat mood disorders primarily by affecting serotonin levels?

<p>Selective serotonin reuptake inhibitors (SSRIs) (B)</p> Signup and view all the answers

Which of the following statements accurately describes tardive dyskinesia?

<p>An irreversible side effect characterized by abnormal, involuntary movements (A)</p> Signup and view all the answers

What is one of the key nursing considerations when managing clients on psychopharmacological treatment?

<p>Evaluating medication side effects regularly (C)</p> Signup and view all the answers

Which type of nerve cells form networks and communicate through neurotransmission?

<p>Neurons (B)</p> Signup and view all the answers

Which imaging technique is most commonly used to visualize soft tissue structures?

<p>Magnetic Resonance Imaging (MRI) (A)</p> Signup and view all the answers

What is the primary function of the reticular activating system?

<p>Influencing motor activity and consciousness (B)</p> Signup and view all the answers

What is a critical sign that indicates the effectiveness of treatment for clients with mental illness?

<p>Stable emotional state (D)</p> Signup and view all the answers

Which structure is NOT typically included in the limbic system?

<p>Cerebellum (B)</p> Signup and view all the answers

Which of the following is a major barrier to maintaining a medication regimen?

<p>High cost of medications and lack of insurance coverage (B)</p> Signup and view all the answers

What neurotransmitter is primarily synthesized from the amino acid tyrosine?

<p>Dopamine (B)</p> Signup and view all the answers

Which function is primarily associated with serotonin?

<p>Regulating sleep and mood (C)</p> Signup and view all the answers

How does the extrapyramidal system primarily function?

<p>Relaying information about movement and coordination (B)</p> Signup and view all the answers

What condition is NOT commonly associated with disturbances in the limbic system?

<p>Parkinson’s disease (C)</p> Signup and view all the answers

Which of the following is a common side effect of anticholinergic medications?

<p>Blurred near vision (C)</p> Signup and view all the answers

Which mechanism describes how neurotransmitters can cease their action in the synapse?

<p>Reuptake and enzymatic degradation (B)</p> Signup and view all the answers

What is the purpose of the black box warning on medication packages?

<p>To warn about life-threatening side effects (D)</p> Signup and view all the answers

What role does norepinephrine play in the nervous system?

<p>Regulating learning and memory (A)</p> Signup and view all the answers

What role does the limbic system play in relation to neurotransmitters?

<p>It is involved in emotional regulation and memory. (B)</p> Signup and view all the answers

What is primarily affected in individuals with excess norepinephrine?

<p>Anxiety disorders (C)</p> Signup and view all the answers

Which neurotransmitter is involved in the regulation of mood and emotional responses?

<p>Serotonin (D)</p> Signup and view all the answers

What is the main characteristic of dopamine as a neurotransmitter?

<p>It regulates emotional responses and complex movements (B)</p> Signup and view all the answers

What is akathisia primarily characterized by?

<p>Restlessness and inability to stay still (C)</p> Signup and view all the answers

What is the mechanism of action for stimulant drugs?

<p>Excitation of the central nervous system (A)</p> Signup and view all the answers

Which neurotransmitter is involved in the fight-or-flight response?

<p>Epinephrine (A)</p> Signup and view all the answers

Antidepressant drugs are primarily used to manage which of the following conditions?

<p>Major depressive illness (A)</p> Signup and view all the answers

Which of the following can indicate treatment effectiveness for psychopharmacologic therapy?

<p>Reduction in mood fluctuations (A)</p> Signup and view all the answers

What is a common barrier to maintaining a medication regimen?

<p>Cost of medications (D)</p> Signup and view all the answers

What is one of the primary functions of the hypothalamus?

<p>Temperature regulation and appetite control (D)</p> Signup and view all the answers

What does the term 'black box warning' refer to?

<p>Signifies a potential fatal side effect of a medication (B)</p> Signup and view all the answers

Which is NOT a function of neurotransmitters?

<p>Directly causing consciousness (A)</p> Signup and view all the answers

What is serotonin syndrome, and what can it result from?

<p>A life-threatening condition caused by interactions of serotonin-enhancing medications. (C)</p> Signup and view all the answers

Which neurologic side effect is characterized by shuffling gait and muscle stiffness?

<p>Pseudoparkinsonism (A)</p> Signup and view all the answers

What kind of drugs are mood-stabilizing medications mainly used for?

<p>Acute episodes of mania (D)</p> Signup and view all the answers

What neurotransmitter has received significant attention in psychiatric disorder studies?

<p>Dopamine (C)</p> Signup and view all the answers

What is a depot injection, and what is its purpose?

<p>A long-acting injectable form for maintenance therapy. (C)</p> Signup and view all the answers

Which neurotransmitter is primarily involved in the control of complex movements?

<p>Dopamine (A)</p> Signup and view all the answers

What describes tardive dyskinesia?

<p>Irreversible involuntary movements due to long-term antipsychotic use. (B)</p> Signup and view all the answers

What is neuroleptic malignant syndrome (NMS)?

<p>A potentially fatal reaction to antipsychotic drugs. (A)</p> Signup and view all the answers

What does 'half-life' refer to in pharmacology?

<p>The time for half of the drug to be eliminated from the bloodstream (D)</p> Signup and view all the answers

Which type of medications are used to stabilize mood in bipolar disorder?

<p>Mood-stabilizing drugs (D)</p> Signup and view all the answers

What are extrapyramidal symptoms generally associated with?

<p>Antipsychotic medications (C)</p> Signup and view all the answers

What does the term 'pseudoparkinsonism' refer to?

<p>A parkinsonism-like condition due to antipsychotic drugs. (B)</p> Signup and view all the answers

Which diagnostic test primarily uses a magnet and radio waves?

<p>Magnetic resonance imaging (MRI) (D)</p> Signup and view all the answers

What type of syndrome is characterized by agitation, fever, and confusion due to serotonin?

<p>Serotonin syndrome (B)</p> Signup and view all the answers

Which term best describes drugs that excite the central nervous system?

<p>Stimulant drugs (C)</p> Signup and view all the answers

What is the kindling process in relation to seizure activity?

<p>A gradual buildup leading to intensified seizures (A)</p> Signup and view all the answers

What are anticholinergic side effects commonly associated with?

<p>Dry mouth and constipation (B)</p> Signup and view all the answers

What does the term 'off-label use' of a drug mean?

<p>The drug is used for a condition not approved by the FDA (B)</p> Signup and view all the answers

What is the primary effect of dopamine in the brain?

<p>Involvement in emotions and motivation (A)</p> Signup and view all the answers

What neurotransmitter is primarily associated with anxiety disorders due to its excess?

<p>Norepinephrine (D)</p> Signup and view all the answers

Which imaging technique uses a radioactive tracer to monitor brain activity?

<p>Positron Emission Tomography (PET) (D)</p> Signup and view all the answers

What is the main limitation of using MRI compared to CT scans?

<p>Unsuitable for certain patients with implants (A)</p> Signup and view all the answers

What dietary amino acid is serotonin derived from?

<p>Tryptophan (D)</p> Signup and view all the answers

Which neurotransmitter is primarily excitatory?

<p>Dopamine (C)</p> Signup and view all the answers

Which imaging technique is noted for providing detailed structural images of the brain?

<p>Magnetic Resonance Imaging (MRI) (B)</p> Signup and view all the answers

What condition has been shown to correlate with enlarged ventricles in individuals with schizophrenia?

<p>Marked negative symptoms (A)</p> Signup and view all the answers

Which of the following disorders has been linked with dopamine dysfunction?

<p>Parkinson's disease (A)</p> Signup and view all the answers

In which brain imaging technique is a person required to remain motionless for about 20 to 40 minutes?

<p>Computed Tomography (CT) (C)</p> Signup and view all the answers

What is the primary purpose of antipsychotic medications regarding dopamine?

<p>Block dopamine receptors (D)</p> Signup and view all the answers

What effect does excess serotonin have on the body?

<p>Increased risk of depression (C)</p> Signup and view all the answers

Which imaging technique provides functional information about the brain rather than structural?

<p>Positron Emission Tomography (PET) (B)</p> Signup and view all the answers

What can be inferred if a patient shows decreased cerebral blood flow during imaging?

<p>Potential schizophrenia (D)</p> Signup and view all the answers

What is the primary function of the corpus callosum?

<p>Connecting and coordinating the functions of the two hemispheres of the brain (D)</p> Signup and view all the answers

Which lobe of the brain is associated with interpreting sensations of taste and touch?

<p>Parietal lobe (C)</p> Signup and view all the answers

Which of the following is NOT a function of the frontal lobe?

<p>Spatial orientation (A)</p> Signup and view all the answers

Which brain structure is primarily responsible for regulating activity, sensation, and emotion?

<p>Thalamus (A)</p> Signup and view all the answers

What is the role of the cerebellum in motor control?

<p>Coordination and fine-tuning of movement (D)</p> Signup and view all the answers

Which of the following structures bridges the gap between the cerebrum and the medulla oblongata?

<p>Pons (A)</p> Signup and view all the answers

Which neurotransmitter has been implicated in the lack of smooth coordinated movements in diseases such as Parkinson's disease and dementia?

<p>Dopamine (C)</p> Signup and view all the answers

Which of the following is involved in emotional arousal and memory?

<p>Hippocampus (B), Amygdala (D)</p> Signup and view all the answers

What is the function of neurotransmitters in the nervous system?

<p>They transmit information between neurons (B)</p> Signup and view all the answers

What is the term for the gap between two neurons where neurotransmitters are released?

<p>Synapse (D)</p> Signup and view all the answers

Which of the following is NOT a factor that can terminate the action of a neurotransmitter?

<p>Production of new neurotransmitter molecules (B)</p> Signup and view all the answers

Which brain structure is associated with stress, anxiety, and impulsive behavior?

<p>Locus coeruleus (B)</p> Signup and view all the answers

Which neurotransmitter is primarily involved in regulating mood, sleep, and appetite?

<p>Serotonin (A)</p> Signup and view all the answers

Which part of the brain stem is involved in vital centers for respiration and cardiovascular functions?

<p>Medulla oblongata (B)</p> Signup and view all the answers

Which of the following is NOT a lobe of the cerebral cortex?

<p>Limbic lobe (B)</p> Signup and view all the answers

Which of the following is NOT a function of the temporal lobes?

<p>Spatial orientation (C)</p> Signup and view all the answers

Flashcards

Akathisia

Intense need to move; characterized by restlessness and pacing.

Anticholinergic Side Effects

Symptoms like dry mouth and constipation from medications.

Antidepressant Drugs

Medications for major depression and anxiety disorders.

Antipsychotic Drugs

Medication to treat psychosis; includes delusions and hallucinations.

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Anxiolytic Drugs

Medications for treating anxiety and insomnia.

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Black Box Warning

Highlight concerning serious side effects of a drug.

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Computed Tomography (CT)

X-ray procedure producing cross-sectional images of the body.

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Dopamine

Neurotransmitter responsible for movement and pleasure regulation.

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Extrapyramidal Symptoms (EPSs)

Neurologic side effects of antipsychotics including rigidity and shaking.

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Half-Life

Time required for 50% of a drug to be eliminated from the body.

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Limbic System

Brain region associated with emotions and memory management.

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Serotonin Syndrome

Severe reaction from excessive serotonin, causing agitation and confusion.

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Stimulant Drugs

Medications that excite the central nervous system.

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Tardive Dyskinesia (TD)

Involuntary movements, often after long-term antipsychotic use.

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Withdrawal

Symptoms experienced after stopping a drug suddenly.

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Neuroleptic Malignant Syndrome (NMS)

A potentially fatal reaction to antipsychotic drugs.

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Epinephrine

A neurotransmitter linked to attention and mood regulation.

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Serotonin

A neurotransmitter that regulates mood and emotional responses.

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Potency

The amount of a drug needed for maximum effect.

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Neurotransmitters

Chemical messengers that transmit signals across synapses between nerve cells.

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Reuptake

The process of neurotransmitters being transported back to the presynaptic terminal after signaling.

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Enzymatic Degradation

The breakdown of neurotransmitters by enzymes after they have relayed a signal.

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Norepinephrine

A prevalent neurotransmitter in the nervous system linked to attention, learning, and mood regulation.

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Cerebrum

The largest brain region responsible for complex thoughts, voluntary actions, and sensory processing.

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Frontal Lobes

Brain lobes that control organization of thoughts, emotions, and decision-making.

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Parietal Lobes

Brain lobes interpreting sensory input and spatial orientation, including taste and touch.

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Temporal Lobes

Brain lobes associated with smell, hearing, memory, and emotions.

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Occipital Lobes

Brain lobes responsible for visual processing and interpretation.

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Cerebellum

Part of the brain that coordinates movement and posture adjustments.

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Brain Stem

Connects the brain to the spinal cord; regulates vital functions like breathing and heart rate.

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Monoamine Oxidase (MAO)

An enzyme responsible for breaking down neurotransmitters, like norepinephrine and serotonin.

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Dystonia

Muscular rigidity and cramping as a reaction to antipsychotics.

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Midbrain

Connects the pons and cerebellum with the cerebrum; 2 cm long.

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Reticular Activating System

Influences motor activity, sleep, consciousness, and awareness.

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Extrapyramidal System

Relays information about movement and coordination to the spinal nerves.

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Locus Coeruleus

Group of norepinephrine-producing neurons linked to stress and anxiety.

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Thalamus

Regulates activity, sensation, and emotions; sensory relay station.

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Hypothalamus

Controls temperature, appetite, and endocrine functions.

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Hippocampus

Involved in memory formation and emotional responses.

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Neurotransmission

Process of sending messages between neurons through electrochemical signals.

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Central Nervous System

Comprises the brain, spinal cord, and nerves controlling voluntary actions.

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CNS

Central Nervous System, consists of the brain and spinal cord.

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Medulla Oblongata

Brain stem part controlling vital life functions.

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Pons

Connects cerebellum to the brain; involved in sleep and respiration.

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Pineal Body

An endocrine gland influencing various endocrine functions.

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Corpus Callosum

Pathway connecting the right and left cerebral hemispheres.

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Left Hemisphere

Controls the right side of the body; focuses on logic and analysis.

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Right Hemisphere

Controls the left side of the body; centers on creativity and intuition.

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Excitatory Neurotransmitters

Neurotransmitters that stimulate actions in cells.

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Inhibitory Neurotransmitters

Neurotransmitters that inhibit or stop actions in cells.

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Dopamine's role in psychosis

Dopamine is implicated in schizophrenia and psychotic disorders.

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Epinephrine vs. Norepinephrine

Epinephrine is known as adrenaline; norepinephrine is noradrenaline.

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Effects of excess norepinephrine

Excess levels are linked to anxiety disorders.

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Dopamine synthesis

Dopamine is synthesized from the amino acid tyrosine.

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Antipsychotic action

Antipsychotics work by blocking dopamine receptors.

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Neurotransmitter derived from tryptophan

Serotonin is synthesized from the amino acid tryptophan.

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Function of serotonin

Mostly inhibitory; regulates sleep, food intake, and mood.

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Effects of low serotonin

Deficits in serotonin can lead to mood disorders and insomnia.

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CT scanning

Computed Tomography uses X-rays to create cross-sectional images of the brain.

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MRI advantages

MRI provides more detailed images than CT, especially for tissues.

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PET scans

Positron Emission Tomography uses radioactive tracers to visualize brain function.

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SPECT comparison

Single-photon emission computed tomography monitors brain function like a PET scan, but with one photon.

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Cerebral blood flow in mental disorders

Decreased cerebral blood flow is observed in disorders like Alzheimer's and schizophrenia.

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Norepinephrine reuptake inhibitors

Some antidepressants block the reuptake of norepinephrine.

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Study Notes

Neurobiological Theories and Psychopharmacology

  • Key Terms:
    • Akathisia: Intense need to move, characterized by restlessness, pacing, and an inner sense of unease.
    • Anticholinergic Side Effects: Dry mouth, constipation, urinary issues (hesitancy/retention), dry nose, and blurred vision. Common medication side effect.
    • Antidepressant Drugs: Treat major depressive disorder, anxiety, bipolar depression, and psychotic depression.
    • Antipsychotic Drugs (Neuroleptics): Treat psychosis (delusions, hallucinations) in schizophrenia, schizoaffective disorder, and bipolar mania.
    • Anxiolytic Drugs: Treat anxiety, anxiety disorders, insomnia, OCD, depression, PTSD, and alcohol withdrawal.
    • Black Box Warning: Critical warning on medication packages about life-threatening side effects.
    • Computed Tomography (CT): Diagnostic procedure using precise x-rays to take cross-sectional images (slices) of the brain.
    • Depot Injection: Slow-release injectable antipsychotic for maintenance therapy.
    • Dopamine: Neurotransmitter involved in movement, motivation, cognition, and emotions.
    • Dystonia: EPS (extrapyramidal symptom) of antipsychotic meds; acute rigidity, difficulty swallowing, potential laryngospasm.
    • Efficacy: Maximal therapeutic effect a drug can achieve.
    • Epinephrine: Norepinephrine derivative, involved in attention, learning, memory, sleep, and mood.
    • Extrapyramidal Symptoms (EPSs): Drug-related neurological side effects of antipsychotics (dystonia, pseudoparkinsonism, akathisia), treated with anticholinergics.
    • Half-Life: Time for half the drug to be eliminated from the bloodstream.
    • Kindling Process: Seizures escalating from minor to frequent/severe.
    • Limbic System: Brain area above the brain stem, including thalamus, hypothalamus, hippocampus, and amygdala (though definitions vary).
    • Magnetic Resonance Imaging (MRI): Diagnostic test visualizing soft tissues, using magnetic fields and radio waves.
    • Mood Stabilizing Drugs: Treat bipolar disorder, stabilizing mood and preventing highs/lows.
    • Neuroleptic Malignant Syndrome (NMS): Potentially fatal reaction to antipsychotics.
    • Neurotransmitters: Chemical messengers in neurons, transmitting information throughout the body.
    • Norepinephrine: Predominant neurotransmitter; involved in attention, learning, memory, sleep, and mood.
    • Off-Label Use: Drug effective for a different condition than the original FDA approval.
    • Positron Emission Tomography (PET): Diagnostic test evaluating brain function via radioactive substances.
    • Postinjection Delirium/Sedation Syndrome: Cluster of symptoms after olanzapine injection.
    • Potency: Amount of drug needed to reach maximum effect.
    • Pseudoparkinsonism: EPS of antipsychotics; mimicking Parkinson's symptoms (shuffling gait, masklike face, rigidity).
    • Psychoimmunology: Studies the effects of stress on the immune system.
    • Psychopharmacology: Use of drugs to treat mental illness.
    • Rebound: Temporary return of symptoms, potentially more intense than prior.
    • Risk Evaluation and Mitigation Strategy (REMS): Actions/safeguards for use of potentially risky drugs requiring monitoring.
    • Serotonin: Neurotransmitter involved in food intake, sleep, etc.
    • Serotonin Syndrome: Potential life-threatening effects from combined serotonin-enhancing medications.
    • Single-Photon Emission Computed Tomography (SPECT): Brain function test using radioactive substances.
    • Stimulant Drugs: Drugs stimulating the central nervous system.
    • Tardive Dyskinesia (TD): Late-onset, irreversible involuntary movements from antipsychotics.
    • Withdrawal: New symptoms from discontinuing a substance/drug.

Brain Structures and Functions

  • Central Nervous System (CNS): Brain, spinal cord, and nerves controlling voluntary actions. Consists of cerebrum, cerebellum, brainstem, and limbic system.
  • Cerebrum: Divided into two hemispheres connected by the corpus callosum. Each hemisphere controls the opposite body side.
    • Frontal Lobes: Thinking, movement, memories, emotions, and behavior.
    • Parietal Lobes: Taste, touch, spatial orientation.
    • Temporal Lobes: Smell, hearing, memory, emotions.
    • Occipital Lobes: Visual interpretation, depth perception.
  • Cerebellum: Movement and postural coordination.
  • Brainstem: Midbrain, pons, medulla oblongata; controls vital functions (respiration, heart function). Includes pathways for motor information, reticular activating system influencing sleep/awareness, and extrapyramidal system relaying movement information. Contains the locus coeruleus, related to stress and anxiety.
  • Limbic System: Contains thalamus (sensation, emotion), hypothalamus (temperature, appetite, endocrine function, sexual drive, anger/rage/excitement), hippocampus, and amygdala (emotional arousal, memory). Disturbances can be linked to certain mental illnesses.

Neurotransmitters

  • Neurotransmission: Electrochemical communication between neurons.
  • Neurotransmitters are chemical messages that fit into receptor sites on dendrites. Some are excitatory (trigger an action) and some are inhibitory (stop an action).
    • Dopamine: Movement, motivation, cognition, emotions.
    • Norepinephrine: Attention, learning, memory, sleep, mood.
    • Epinephrine: Fight-or-flight response.
    • Serotonin: Food intake, sleep.

Brain Imaging Techniques

  • Computed Tomography (CT): Cross-sectional x-ray images, used to visualize brain tissue/structure. Useful for diagnosing tumors, assessing lesions, and identifying potential brain size changes, in disorders like schizophrenia.
  • Magnetic Resonance Imaging (MRI): Visualizes brain structures using magnetic fields and radio waves; providing detailed info with more contrast than CT. Useful to assess brain structures.
  • Positron Emission Tomography (PET): Examines brain function by monitoring radioactive substances' flow.
  • Single-Photon Emission Computed Tomography (SPECT): Similar to PET but using different radioactive substances, providing functional imaging of blood flow and neuronal activity.

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Explore the key terms and concepts related to neurobiological theories and psychopharmacology. This quiz covers essential information about various drugs used to treat psychological disorders and their effects on the human brain. Test your knowledge on antidepressants, antipsychotics, and more.

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