Week 5 Flashcards

1
Q

Neuropsychological assessment considerations

A

Always assess a person’s emotional state in the intake interview and conduct a screen for mood symptoms (e.g., DASS)

Aim to assess optimal performance: Manage fatigue and alertness (session timing, length and breaks)

Motor problems and handedness (avoid tasks requiring eye-hand coordination with dominant hand [e.g., writing] to assess non-motor skills – e.g., attention)

Does the person have aphasia? – can still assess but need to rely more on nonverbal tasks to gauge IQ and higher order cognitive abilities (e.g., give measures of EF with minimal language requirements)

Neglect? Rely more on verbal tasks and avoid placing objects on their left side of space

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2
Q

Assessment considerations

A

Take into account the likely effects of underlying motor, perceptual and language impairments when interpreting results (do they really have problems with planning or did visual neglect or motor problems affect how well they completed a visuo-motor measure of planning?)

Are changes in the person’s functioning expected over time (recovery, decline)?

  • -The person may need a re-assessment
  • –Repeatable batteries with parallel forms help to avoid practice effects
  • –E.g., Test of Everyday Attention
  • –RBANS
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3
Q

Brain Injury Outcomes

A

A 2-5 year follow-up of people discharged from the PAH (n=208) in QLD identified that 47% returned to work in the same or different job (Fleming et al., 1999)

In a consecutive cohort study of 96 people with TBI Ownworth et al. (2011) found that 24% were in the clinical range for depression at hospital discharge, which increased slightly to 27% at 3-months post-discharge

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4
Q

Biopsychosocial Framework

Ownsworth (2014)

A

Pre-injury characteristics
Psychological factors
Neuropathology
Social environment

all influence -> Outcomes
Functional, social & emotional

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5
Q

BioPsychosocial Framework:

Pre-injury characteristics

A

Genotype, age, gender, ethnicity, occupation, cognitive & physical abilities

Psychological and social resources

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6
Q

BioPsychosocial Framework:

Psychological factors

A

Personal appraisals and reactions (personality, self-awareness, coping strategies, motivation and goals)

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7
Q

BioPsychosocial Framework:

Neuropathology

A

Cause & mechanisms
Severity, location, recurrence, onset/ course
Treatment options
Direct effects on functioning (e.g., aphasia)

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8
Q

BioPsychosocial Framework:

Psychological factors

A

Personal appraisals and reactions (personality, self-awareness, coping strategies, motivation and goals)

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9
Q

BioPsychosocial Framework:

Social environment

A

Concurrent stressors

Access to resources (physical, financial, information, social support) and rehabilitation

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10
Q

Early Notions on Recovery

A

Initial belief that the brain was ‘hard wired’

Implications for people with brain injury?

Later, recovery was thought to signify ‘spontaneous reorganisation’ of brain areas to take over the functions of damaged tissue

Middle ground: Day-to-day experiences can have measurable effects on brain structure and function (experience-dependent plasticity).

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11
Q

Recovery from TBI

A

Most rapid recovery occurs in first 3-6 months but may continue for many years

“..the adult brain can show large experience-dependent change in neural circuits, including dendritic and axonal sprouting” (Robertson, 1999, p. 412)

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12
Q

Research on Neuroplasticity

A

Neuroplasticity = brain’s ability to reorganise its structure, function and connections in response to life experiences

The lifelong capacity of the brain to change and rewire itself in response to learning and experience.

This assumes that there is a corresponding change in behaviour or function

Occurs in response to positive and adverse life experiences

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13
Q

Neuroplasticity

A

The adult brain has the potential for neuroplasticity through synaptogenesis (new synapses between neurons) and neurogenesis (new neurons)

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14
Q

Does neuroplasticity vary with age?

A

Animal experiment: young, adult and old mice placed in a complex environment vs standard lab cage

Mice of all ages found to have an increase in dendrite length and synapse density in neurons of the motor and sensory cortical regions relative to standard cage

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15
Q

Neuroplasticity in Humans

A

Timing of injury and brain maturation issues

Greatest evidence of neuroplasticity exists for motor and sensory function

Some preliminary evidence for language

Little evidence yet for cognitive and behavioural functions

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16
Q

Key Implications

A

Recovery: greatest benefits of rehabilitation are soon after injury to capitalize on optimal window of neuroplasticity

Maintenance and further gains: Participation in rehabilitation and meaningful activities are integral for ongoing experience-dependent recovery and can prevent atrophy and functional decline

A lack of activity and stimulation (e.g., ++support and dependence) or task avoidance may result in secondary functional impairments

17
Q

Theories of Recovery & Adjustment

A

Robertson & Murre (1999) proposed two main processes of recovery:

  • —Restitution – relearning or regaining skills to complete tasks the same as pre-injury
  • —-Compensation – learning to perform tasks in a different way

Experience-dependent brain plasticity forms the basis for some of these changes

18
Q

Process of Compensation Model (Dixon & Bäckman, 1999)

A

Compensation refers to a process through which deficits or losses are moderated

The need for compensation arises when there is a ‘mismatch’ between the skills a person possesses relative to the demands of the environment and expected performance

The general aim of compensation is to close the gap between expected performance, environmental demands and level of skill

19
Q

Process of Compensation Model

A

In most cases it is important that individuals are aware of the mismatch between skills they possess, environmental demands and expected performance

Poor self-awareness is linked to reduced engagement in rehabilitation, unrealistic goals, lack of strategy use, failure to benefit from rehabilitation and poorer long-term outcomes (Ownsworth & Fleming, 2014)

A first step of rehabilitation can involve facilitating individual’s self-awareness of the need for compensation. For some individuals, motivation issues may also need to be addressed

20
Q

Mechanisms of Compensation

A

Remediation – investing more
time and effort through training
and practice on a specific task

Substitution – using previously
developed skills or new skills
to take over the performance
of absent, lost or declining skills.

Self-adjustment – adjusting goals
and expectations of performance
to match environmental
demands to one’s skill level

External adjustment – modifying
& selecting environments &
adjusting expectations of others

21
Q

Cognitive Rehabilitation

A

‘…can apply to any intervention strategy or technique which intends to enable clients or patients and their families to live with, manage, bypass, reduce, or come to terms with cognitive deficits precipitated by injury to the brain’ (Wilson, 1989, p.117).

22
Q

Main Cognitive Impairments

A

Examples of approaches and techniques used for:

Attention
Memory & learning
Language
Visuo-spatial skills
Executive function
23
Q

Attention

A

Create an environment conducive to good attending

Set realistic goals within the person’s capabilities and still challenging

Plan activities according to arousal level

Shorten activities and the gradually increase length of activities.

Frequent breaks on long tasks; alternate between physical & mental tasks

(some evidence for remedial, computerised training and attention process training/focus pocus/braintap sort of thing but domain specific)

24
Q

Self-Check

A
STOP!
Where is my attention focused right now?
>>>
Is this what I need to be focusing on?
>>>> YES, good!
stay on track
Is this what I need to be focusing on?
NO, what should
I be focusing on?
>>>Do I need to take
A short break?
25
Alternating and Divided Attention
Structure activities so they can be completed one step at a time Avoid activities for which there is a high demand to process information concurrently or make multiple responses List tasks sequentially and break these down into small parts and check items off when completed Educate other people about the need to avoid interrupting the person while they are completing a set of tasks (put answering machine on) Teach self-talk (verbal mediation) or visualisation to shift between tasks
26
Managing Memory Problems
Four general approaches: Organise the environment Internal strategies – e.g., PQRST External memory aids Develop routines/habits
27
memory support apps can be useful
EG - Memory support apps ``` ColorNote Notepad Any.do MediSafe Meds & Pill Reminder Google keep & Google calendar Remember the milk Evernote ```
28
Internal strategies (mnemonics)
Repetitive trials of practice to learn information (e.g. numbers, words lists); i.e. memory muscle approach Chunking (e.g. 40 and 72) and categorising (e.g. groceries divided into logical groups) Acronyms (NESW, DRABC) Verbal associations or elaboration (e.g. the name Jessica) Evidence? Research indicates that rehearsal or repetition generally helps to encode information. Internal strategies help for the specific type of information learnt but the strategies do not generalise well to other daily situations.
29
Internal strategies/Substitution
Enrichen encoding: PQRST – preview, question, read, summarise, test Errorless learning and vanishing cues: Amnesia Aim is to prevent and eliminate errors to prevent the development of maladaptive habit E.g., provide step-by-step demonstration and a high level of cuing to teach someone how to set up a SPSS file or how to tap dance Use of backward chaining to teach a basic procedure *Strategies must be applied to everyday situations to assist generalisation to the real world
30
External Memory Aids
``` Diary or notebooks Lists and checklists Alarm clock or timer to cue actions Calendar or whiteboards Dictaphone or electronic organiser (iPhone etc) Pill reminder box A memory book Assistive technology ---Cue intentions ---Store information ---Learn & consolidate new experiences ``` eg. SenseCam (Berry et al., 2008)
31
Managing Language Deficits
Liaise with speech therapy Augmentative communication devices Allow extra time for the person to understand others and express themselves (ask them what helps, don’t assume) Teach nonverbal means of communicating (gestures, drawing or pointing to pictured stimuli). Multiple choice questions Use of circumlocution for word finding
32
Functional language in everyday contexts
Use real life situations (e.g. making a telephone call and writing letters) and provide feedback on skills and strengths and suggestions to improve skills Videotape conversational skills and review performance with suggested strategies for improvement Training communication partners to provide positive and collaborative communication strategies (e.g., “Yesterday when we went shopping you saw a CD by Bruno Mars that you wanted – tell me why you like it”). See Togher et al. (2013)
33
Managing Visuo-spatial Disorders
Environmental modification and family education (e.g. label objects, bright colours on corners and edges) Keep environment as consistent as possible Systematic and paced searching to find a desired object Avoidance of high risk situations (e.g. climbing ladders) Substitution – use touch to find an object in the fridge Assistive technology (visual scanning devices) Magnifying stimuli and increasing contrast Head/body turning for visual scanning deficits Prism glasses for neglect
34
Executive Function: Initiation & motivation (*check for depression)
Environmental cues or triggers for action (e.g. alarms) Educating family and staff for the reason behind the behaviour (i.e. the person is not lazy or noncompliant) Verbal prompting using positive phrases (not nagging) Pair challenging tasks with a natural reinforcer (e.g. rehabilitation exercises before a meal) and develop a routine Break tasks down into achievable steps Start on tasks that are within the person’s capabilities Personal metaphors and coping statements
35
Planning & Organisation Deficits
Use external aids such as whiteboards and calendars to plan activities (timeframe, equipment needed etc) Encourage the person to keep their environment uncluttered, free of distractions and use visual prompts (e.g. a ‘bills due’ tray) Use checklists and goal statements with step-by-step plans to organise events. Goal Management Training involves: 1. Stop – what am I doing? 2. Define the main task 3. List the steps 4. Learn the steps and put them into action 5. Check and evaluate outcome
36
Disinhibition & Impulsivity
Consistent feedback after the behaviour (e.g. “When you make comments about… I feel uncomfortable”) and self-awareness training Family education and behavioural management strategies Social skills training and use of roleplays to teach new responses Environmental restructuring and supervision in high risk situations Self-talk and delayed response techniques – Stop-Think-Do (e.g. Stop – what am I doing? Think – is this the best way to react? Do – what should I do instead?) Medication may need to be an option for severe behaviours
37
Case Conceptualisation
Amy is a 24 year old woman who was involved in a MVA 3 years ago which left her paralysed (SCI), with a TBI and in a wheelchair When travelling on public transport she often swears and yells at other passengers. Occasionally she has hit people or driven her wheelchair into them.