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Questions and Answers
What can exaggerate cortisol secretion and cement fear-based memories?
What can exaggerate cortisol secretion and cement fear-based memories?
Which of the following describes a maladaptive response to stress?
Which of the following describes a maladaptive response to stress?
How does central sensitization affect pain signals?
How does central sensitization affect pain signals?
What effect can prolonged or exaggerated stress responses have on the body?
What effect can prolonged or exaggerated stress responses have on the body?
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What is a potential outcome of maladaptive cognitive appraisals to stressors?
What is a potential outcome of maladaptive cognitive appraisals to stressors?
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Which cognitive strategy can potentially minimize cortisol secretion?
Which cognitive strategy can potentially minimize cortisol secretion?
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Which factor can contribute to a sensitized physiological stress response?
Which factor can contribute to a sensitized physiological stress response?
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What are nociceptive signals experienced without peripheral neuron stimulus called?
What are nociceptive signals experienced without peripheral neuron stimulus called?
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What are the two main types of descending modulation in the CNS?
What are the two main types of descending modulation in the CNS?
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Which brain structures are primarily involved in the descending modulation process?
Which brain structures are primarily involved in the descending modulation process?
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What is the role of endogenous opioids in the CNS?
What is the role of endogenous opioids in the CNS?
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Who was one of the first to comment on the phenomenon of decreased pain perception in wounded soldiers?
Who was one of the first to comment on the phenomenon of decreased pain perception in wounded soldiers?
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What neurotransmitter is primarily involved in the descending modulation process, along with endogenous opioids?
What neurotransmitter is primarily involved in the descending modulation process, along with endogenous opioids?
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What effect does the sensory experience serve in the CNS?
What effect does the sensory experience serve in the CNS?
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What is the function of the midbrain's periaqueductal gray area (PAG) in the modulation process?
What is the function of the midbrain's periaqueductal gray area (PAG) in the modulation process?
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Which of the following substances is similar to THC and involved in descending modulation?
Which of the following substances is similar to THC and involved in descending modulation?
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What neurotransmitters do local inhibitory neurons primarily use?
What neurotransmitters do local inhibitory neurons primarily use?
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Which factors can alter central modulation and affect sensory experience?
Which factors can alter central modulation and affect sensory experience?
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How does the physiological stress response influence pain perception?
How does the physiological stress response influence pain perception?
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What is the role of cortisol in the context of anxiety and stress?
What is the role of cortisol in the context of anxiety and stress?
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What is a consequence of central sensitization on neuron health and function?
What is a consequence of central sensitization on neuron health and function?
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What type of pain or sensation can result from aberrant nociception or failures in central modulation?
What type of pain or sensation can result from aberrant nociception or failures in central modulation?
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How does anxiety impact neurochemical levels in the central nervous system?
How does anxiety impact neurochemical levels in the central nervous system?
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Which statement best describes the relationship between depression and pain?
Which statement best describes the relationship between depression and pain?
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What effect does chronic anxiety have on the central modulation mechanisms?
What effect does chronic anxiety have on the central modulation mechanisms?
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Which of the following describes the effect of sympathetic nervous system activation on pain perception?
Which of the following describes the effect of sympathetic nervous system activation on pain perception?
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What role do placebo effects play in managing symptoms?
What role do placebo effects play in managing symptoms?
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What psychological phenomenon is indicated by expressing emotional distress as physical symptoms?
What psychological phenomenon is indicated by expressing emotional distress as physical symptoms?
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What role do endorphins and enkephalins play in the spinal cord?
What role do endorphins and enkephalins play in the spinal cord?
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What effect do nocebo responses have in comparison to placebo responses?
What effect do nocebo responses have in comparison to placebo responses?
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Which neurochemical is NOT mentioned as being depleted by depression?
Which neurochemical is NOT mentioned as being depleted by depression?
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What is a notable factor in the therapeutic effects of massage therapy?
What is a notable factor in the therapeutic effects of massage therapy?
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Which condition is NOT mentioned as a potential cause for damage to peripheral nerves?
Which condition is NOT mentioned as a potential cause for damage to peripheral nerves?
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What physiological change is associated with lowered thresholds for firing of C fibers?
What physiological change is associated with lowered thresholds for firing of C fibers?
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Which one of the following statements is accurate regarding the treatment approaches for neuropathic pain?
Which one of the following statements is accurate regarding the treatment approaches for neuropathic pain?
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Which symptom is NOT typically associated with neuropathic pain?
Which symptom is NOT typically associated with neuropathic pain?
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What effect does immobilization by pain have on nociceptive input?
What effect does immobilization by pain have on nociceptive input?
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What consequence results from glutamate excitotoxic cell death of inhibitory neurons?
What consequence results from glutamate excitotoxic cell death of inhibitory neurons?
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Which of the following is NOT a factor that can worsen neuropathic pain?
Which of the following is NOT a factor that can worsen neuropathic pain?
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Which mechanism involves the proliferation of alpha adrenergic receptors?
Which mechanism involves the proliferation of alpha adrenergic receptors?
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What does anaesthesia refer to in sensory terms?
What does anaesthesia refer to in sensory terms?
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Which term describes diminished sensation where the response is less strong than expected?
Which term describes diminished sensation where the response is less strong than expected?
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What characterizes hyperaesthesia?
What characterizes hyperaesthesia?
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What sensation is described by the term paraesthesia?
What sensation is described by the term paraesthesia?
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Dysaesthesia is best defined as which of the following?
Dysaesthesia is best defined as which of the following?
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Allodynia is characterized by which of the following experiences?
Allodynia is characterized by which of the following experiences?
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What is a common non-sensory stimulus that may lead to paraesthesia?
What is a common non-sensory stimulus that may lead to paraesthesia?
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Which of the following best summarizes the relationship between dysaesthesia and paraesthesia?
Which of the following best summarizes the relationship between dysaesthesia and paraesthesia?
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Flashcards
Central Modulation
Central Modulation
The process by which the brain regulates and modifies sensory input, particularly pain signals.
Descending Modulation
Descending Modulation
A type of central modulation that originates in the brain and travels down to the spinal cord.
Beecher's Observation
Beecher's Observation
The phenomenon of significantly reduced pain perception, often observed in situations of intense focus or stress.
Brain Regions Involved in Central Modulation
Brain Regions Involved in Central Modulation
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Endorphins and Enkephalins
Endorphins and Enkephalins
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Dopamine
Dopamine
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Periaqueductal Gray (PAG)
Periaqueductal Gray (PAG)
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Modulators of Pain Signals
Modulators of Pain Signals
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Central Sensitization
Central Sensitization
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1° Neuron
1° Neuron
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2° Neuron
2° Neuron
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Dorsal Horn
Dorsal Horn
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Nociception
Nociception
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Maladaptive Cognitive Appraisals
Maladaptive Cognitive Appraisals
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Cortisol
Cortisol
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Coping Mechanisms
Coping Mechanisms
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Anaesthesia
Anaesthesia
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Hypaesthesia
Hypaesthesia
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Hyperaesthesia
Hyperaesthesia
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Paraesthesia
Paraesthesia
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Dysaesthesia
Dysaesthesia
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Allodynia
Allodynia
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How do endorphins and enkephalins inhibit pain signals?
How do endorphins and enkephalins inhibit pain signals?
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What can disrupt central modulation mechanisms?
What can disrupt central modulation mechanisms?
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How do mood states, traumatic experiences, and chronicity impact central modulation?
How do mood states, traumatic experiences, and chronicity impact central modulation?
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How do anxiety, fear, stress, and distress influence pain perception?
How do anxiety, fear, stress, and distress influence pain perception?
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Neuropathic pain
Neuropathic pain
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How does the sympathetic nervous system contribute to enhanced pain perception during anxiety?
How does the sympathetic nervous system contribute to enhanced pain perception during anxiety?
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A delta fiber
A delta fiber
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What are the roles of cortisol in pain perception?
What are the roles of cortisol in pain perception?
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How does dysfunctional stress affect central modulation?
How does dysfunctional stress affect central modulation?
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C fiber
C fiber
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Why is understanding central modulation crucial for pain management?
Why is understanding central modulation crucial for pain management?
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Hypersensitivity
Hypersensitivity
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Ephaptic activation
Ephaptic activation
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Inadequate descending pain control
Inadequate descending pain control
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Sprouting of C fibers in the spinal cord
Sprouting of C fibers in the spinal cord
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Somatization
Somatization
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Interconnectedness of Anxiety, Central Sensitization, and Depression
Interconnectedness of Anxiety, Central Sensitization, and Depression
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Nocebo Effect
Nocebo Effect
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Placebo Effect
Placebo Effect
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Damage and Disease in Pain Perception
Damage and Disease in Pain Perception
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Neurochemicals Involved in Mood and Pain Regulation
Neurochemicals Involved in Mood and Pain Regulation
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Study Notes
Central (Descending) Modulation
- Modifiers of afferent transmission exist, locally inhibiting or gating signals from tissues to the brain.
- Filtering in the thalamus further modifies these signals.
- The central nervous system (CNS) also has descending modulation mechanisms.
- This descending modulation is often discussed in the context of pain, but can also be applied to other sensory experiences to weaken or suppress them.
- Understanding of these descending mechanisms is incomplete.
- Beecher noted the frequent lack of pain in injured soldiers, suggesting a role beyond sensory experience.
- Sensory experience focuses attention on crucial matters needing response or reflection.
- Absence of importance or distraction weakens or eliminates sensory experience.
- Brain regions like the cortex, thalamus, insula, amygdala, and hypothalamus are involved in central modulation. These regions release chemicals like endorphins and enkephalins.
Descending Modulation Mechanisms
- These mechanisms involve communication to midbrain and brain stem nuclei.
- These nuclei release modulators from brainstem zones, including neurotransmitters like serotonin, norepinephrine, and endocannabinoids.
- These modulators act on neurons in the dorsal horn.
- They directly inhibit synapses where C and A-delta fibers transmit signals.
- They activate local inhibitory neurons, which have a role in blocking signals.
- Indirectly, they can inhibit the firing of secondary neurons.
- These local neurons frequently use GABA and glycine.
Central Modulation Problems
- Modulation mechanisms are broad, influenced by numerous traumatic and pathological causes.
- This means pain or sensations may result from aberrant nociception or modulation failure.
- Mood states, mental health, trauma history, and chronic conditions can alter central modulation.
Anxiety, Fear, Stress, Distress
- Anxious individuals often experience more intense pain.
- Factors like sympathetic nervous system stimulation are related to stress and anxiety-related pain perception.
- The modulation mechanisms impacting anxiety may be compromised by numerous situational factors.
Central Sensitization
- Central sensitization involves normal sensory signals being amplified; the initial signals do not necessarily need to be strong for the pain experience to result.
- Signals from sensory receptors on primary neurons are processed in the dorsal horn.
- These signals are amplified as they move further to the brain.
- Nociceptive signals are sometimes sent to regions of the central nervous system without peripheral stimulus.
Neuropathic Pain
- Neuropathic pain originates from sensory nerve damage or dysfunction.
- This can be due to various factors, both peripheral (traumatic damage) and central.
- Neuropathic pain often occurs with inflammation or injury.
Complex Regional Pain Syndrome II/ Causalgia (CRPS II)
- CRPS II is a symptom of peripheral nerve damage, often due to injuries to the median, sciatic, or certain spinal nerves.
- This reflects damage/irritation to the sympathetic vasomotor neurons within the nerve causing shooting pain.
- Intense burning pain is often accompanied by skin redness (erythema).
Damage, Pathology
- Sensory perception challenges are impacted by various factors influencing neural pathways, such as neuron loss, injury, or inflammation.
- Sensory signals may be misinterpreted due to damaging factors such as ischemia or compression
- Demyelinated areas or abnormal conduction pathways change signal interpretation and cause additional complications.
- Sensory experience challenges can result from the brain interpreting abnormal signals or activating nerves without a stimulus.
Nocebo and Placebo
- Placebo and nocebo effects are factors in the experience of pain and discomfort.
- There are considerable research interests into both placebo and nocebo in sensory perception.
Clinical Terminology
- Massage therapists must understand descriptive sensory terms and how they relate to various conditions.
- Terms like anesthesia, hyperesthesia, hypoesthesia, and hyperalgesia are relevant concepts related to sensory experience.
Paraesthesia, Dysaesthesia
- Paraesthesia and dysaesthesia are types of abnormal sensory experiences/perceptions.
- These typically do not correlate with or are not caused by stimulation; rather, they are often described as unusual and painful.
Allodynia, Hyperalgesia, Hypalgesia
- Allodynia is a condition where innocuous stimuli are perceived as painful.
- Hyperalgesia is an increased response to normally painful stimuli, or a heightened awareness of the pain itself.
- Hypalgesia signifies a decreased or weakened response to painful stimuli.
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Description
This quiz explores the complex interactions between stress and pain, focusing on how cortisol secretion and cognitive appraisals can affect our physical responses. Participants will assess their understanding of concepts like central sensitization, stress responses, and the role of endogenous opioids in pain modulation. It's an essential tool for anyone studying psychology or neuroscience!