mod 4 Flashcards

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1
Q

Medulla oblongata

A

Respiration
Heartbeat
Blood flow
Muscle tone
Reflexes

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2
Q

Pons

A

Respiration aspects of sleeping
Waking and dreaming

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3
Q

Cerebellum

A
  • Coordination of smooth movement - fine muscle movements
  • Balance
  • Learning sensory information and motor outputs
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4
Q

Reticular formation

A

Maintaining consciousness
Regulating arousal levels
Modulating activity

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5
Q

Tecum

A

processing visual via the superior colliculus and auditory for the inferior colliculus stimuli allows us to orient to our surroundings with our eyes or body movements

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6
Q

Tegmentum

A

movement and arousal and it plays a really important role in learning to produce behaviours that minimize unpleasant and maximise pleasant consequences

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7
Q

Hypothalamus

A

Eating
Sleeping
Sexual activity
Emotions

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8
Q

Thalamus

A

Processing and transferring information

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9
Q

Basal ganglia

A

Movement control
‘automatic responses’

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10
Q

Limbic system

A

Pleasure
Fear

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11
Q

The limbic system: septal area

A

Pleasure
Relief from pain
Emotionally significant learning

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12
Q

The limbic system: amygdala

A

Learning
Memory of emotional events
Recognition of fear

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13
Q

The limbic system: hippocampus

A

Storage of new memories

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14
Q

3 main functions of cerebral cortex

A
  1. The cortex is involved in sequence involuntary movements such as playing music
  2. Allows us to make subtle discriminations from different perceptual information
  3. Allows for symbolic thought to represent objects or concepts
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15
Q

Frontal lobe

A

Movement
Social skills
Some aspects of personality

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16
Q

R + L hemispheres of frontal lobes

A

Deal with social and e,optional motor and sexual behaviour. As well as problem solving

17
Q

Left frontal lobe

A

Language abilities
- positive emotions

18
Q

Right frontal lobe

A

More concerned with non-verbal aspects of communications and emotions like fear, anger and sadness
- being aware of someone’s emotions by facial expressions
- picking up on auditory signals like someone’s tone of voice

19
Q

Parietal lobe

A

Can be divided into two areas:
1. Involved in sensation and perception
- Integrates sensory information to form a single perception cognition

  1. Integrating sensory input primarily with the visual system
    - Constructs a spatial coordinate system to represent the world around us
20
Q

Somatosensory cortex

A

The primary area in the parietal lobe is the somatosensory cortex which is
responsible for processing somatic sensation(touch, temp, pain…)

These sensations arrive from receptors position throughout the body that are
responsible for detecting touch property exception, which is the position of the
body in space, known susceptible in any pain and temperature

When such receptors detect one of these sensations, that information is sent to
the thalamus and then to the primary somatosensory cortex

21
Q

Temporal lobe

A

Specialised in hearing and language

Primary cortex of the temporal lobe receives sensory information from the ears,
whereas the association cortex arranges this information into meaningful speech

Wernicke’s area – in the left hemisphere which has been identified as being crucial
for language comprehension

22
Q

Temporal lobe
Primary and association cortex

A

Primary cortex receives sensory information

Association cortex arranges that into speech

23
Q

Occipital lobe

A

Specialised for vision

24
Q

Left brain functions

A

Speech
Reading
Arithmetic
Visual memory
Language
Sounds
Complex movement
Right side of body motor movements

25
Q

Right brain functions

A

Emotional content
Direction, distance
Nonverbal memory
Faces, patterns
Music, non-language sounds Movement in spatial patterns
Left side of body motor movements

26
Q

(TBI) traumatic brain injury

A

alteration to brain functioning caused by external force. This external force can result in either a closed injury (non-penetrating) or open (penetrating)

TBI can occur as a result of falls, vehicular accidents, sport injuries and assaults, etc

27
Q

(NTBI) non-traumatic brain injury

A

referred to as an acquired injury, causes damage to the brain by internal factors, such as oxygen deprivation or toxins or pressure resulting from a tumour

NTBI can occur as a result of strokes, aneurysm, infectious diseases (such as
meningitis), lack of oxygen (e.g. during a heart attack) and tumour, etc

28
Q

TBI - closed brain injury

A

Can cause large areas of damage due to bruising, bleeding, sheering of nerve fibres and swelling
- Coup injury – damage caused by impact
• Coup injury is associated with a moving object impacting the stationary hit
- Countercoup injury – damage caused by the movement of the head after impact
• Countercoup brain injuries occur at sites remote to the actual impact site of the head, so often opposite to the actual site of the impact to the head
• Countercoup injuries classically occur when the moving hit our brain essentially strikes a stationary object

29
Q

TBI - open brain injury

A

Railway worker had a metal spike go through the front of his skull. Destroyed much of his brains left frontal lobe and resulted in significant changes to personality and behaviour (became an alcoholic)

30
Q

Non-traumatic brain injury

A

The impact of Acquired Brain Injury (ABI) is wide and varied including physical,
cognitive, communicative, psychological and psychosocial difficulties
- One such condition associated with NTBI is locked-in-syndrome:
• Rare neurological disorder characterised by complete paralysis of voluntary muscles, except for those that control the eyes
• People with locked-in syndrome are conscious and can think and reason, but unable to speak or move
• Vertical eye movements and blinking can be used to communicate
- Can be caused by brain stem stroke, traumatic injury, tumour, disease, infection… etc

31
Q

Neuroplasticity

A

After injury to the brain, there are two mechanisms whereby functional
improvement may occur:
• Recovery = restoration of neural tissue and restoration of prior performance
• Compensation = recruitment of new neural circuits and training of new
movements or activity