PPCT Flashcards
What 2 branches are the Autonomic Nervous System (ANS) divided into?
- Parasympathetic Nervous System (PNS - normal “rest and digest” operates in QUIET, NON-STRESSFUL ENVIRONMENT)
- Sympathetic Nervous System (SNS - fight or flight, acts to PREPARE THE BODY TO REACT TO STRESSFUL SITUATIONS when faced with danger). Both control INVOLUNTARY ACTIONS.
What are the 3 Mental States in Combat?
Combat Anxiety, Survival Stress and Combat Stress.
What is Combat Anxiety?
The anticipation of danger (which may lead to a gradual deterioration of both mental and physical skills).
What is Survival Stress?
Deadly force threat perception that initiates the SNS discharge. (the hormonal changes can affect performance)
What is Combat Stress?
Deals with the POST EVENT mental and physiological symptoms that are a result of the SNS activation and sudden return to PNS.
What is TUNNEL VISION?
When your vision literally narrows down by as much as 70%. Problem is that your mind is processing only minimal information and you could miss vital threat cues.
What are the 3 Motor Skill Classifications?
- Fine Motor Skills
- Complex Motor Skills
- Gross Motor Skills
Describe Fine Motor Skills?
Skills that require HAND/EYE coordination and HAND DEXTERITY (such as writing a report, precision shooting skills or survival reloading). A heart rate of 115 BPM starts to affect Fine Motor Skills.
Describe Complex Motor Skills?
Skills that involve a series of muscle groups in a series of MOVEMENTS requiring hand/eye coordination, PRECISION, TRACKING and TIMING. Such skills include shooting stances like Weaver Stance. A heart rate of approx. 145 BPM starts to affect Complex Motor Skills.
Describe Gross Motor Skills?
Skills that involve LARGE or MAJOR MUSCLE GROUPS. Such skills involve simple actions like a Straight Punch, forward baton strike, or isosceles shooting stance. This Motor Skill actually increases as the SNS heart rate increases.
Describe the INVERTED U LAW?
As arousal increases, so will MOTOR PERFORMANCE to a point at which the arousal is too high and motor skill deteriorates.
What heart rate range is OPTIMAL for PERFORMANCE?
115 TO 145 BPM.
What triggers Parasympathetic Nervous System (PNS) “Backlash”?
Triggers occur after being in a situation that activated Sympathetic Nervous System (SNS), and includes the perception that the THREAT HAS DIMINISHED, the perception that there has been an INJURY TO A VITAL SYSTEM, or EXHAUSTION of the aerobic and anaerobic systems.
Describe Critical Incident Amnesia?
Occurs after Sympathetic Nervous System (SNS) activation and is a form of TEMPORARY amnesia subsequent to a SNS mass discharge which includes the RELEASE of the stress hormone CORTISOL.
Describe how incident reports should be handled? (hint: 3 reports should be described)
- The first report should be VERBAL and titled “Preliminary Report”.
- The second report should NOT be prepared until AFTER the FIRST sleep period.
- The “Final” report should NOT be prepared until AFTER the SECOND sleep period.
Describe the ATP/PC System?
FIRST PHASE: Consists of SMALL ENERGY BUNDLES that are stored in the MUSCLES. Used during HIGH ENERGY/STRENGTH activities. When engaged, the officer can perform at 100% output for 10-15 seconds. After this, expect a 45% DECREASE in maximum output within 30 seconds.
Describe the Lactic Acid System (LAS)?
SECOND PHASE: Used by the body after the ATP/PC system has been depleted as an AFTERBURNER FUEL and provides about 45 seconds of INTERMEDIATE STRENGTH and ENDURANCE.
Once engaged, officer will be reduced to 55% of maximum output at 30 seconds and 35% of output at 60 seconds.
Describe the Aerobic System (AS)?
FINAL PHASE: After 90 seconds, LAS is depleted and AS becomes the FINAL and DOMINANT fuel system. It is fueled by combination of OXYGEN, CARBS, and FREE FATTY ACIDS. When AS is activated, officer’s MAXIMUM OUTPUT will be reduced to approximately 31%.
Define Homeostasis?
BALANCE
What happens VISUALLY during SNS Activation?
Tunnel Vision Loss of NEAR VISION Loss of ABILITY TO FOCUS Loss of MONOCULAR VISION Loss of DEPTH PERCEPTION Loss of NIGHT VISION
What are common ACTIONS or REACTIONS to Hyper-vigilance?
Fight or Flight
Fixation or Freezing
Submissive Behavior
Feedback Loop (repetition of actions including clearly ineffective or inappropriate actions)
Describe the Catastrophe Theory?
Catastrophic Failure can be expected when high COGNITIVE ANXIETY is combined with high levels of PHYSIOLOGICAL AROUSAL. Similar to the Inverted U Law except the BOTTOM FALLS OUT.
Describe PNS “Backlash” Symptoms?
Dizziness from sudden drop in blood pressure and heart rate
Excessive Bleeding
Sock, Paleness, Nausea, Excessive Sweating, Clammy Skin
Overwhelming sense of Exhaustion
Excessive Muscle Tremors