Wednesday, 17 February 2010

Working with Challenging Behaviour in Neuro-Rehabilitation

Dealing with challenging behaviour is much the same in neuro-rehabilitation as it is in other care and therapeutic contexts. The following is the basis of a training workshop in progress aimed at increasing skills in dealing with challenging behaviour wihtin a neuro-rehab setting.

What do we mean by challenging behaviour?
Behaviours are actions that we can observe and record:
Hitting
Kicking
Biting
Spitting
Smearing
Self-harm
Swearing
Disinhibition
Sexualised actions
Verbal threats?
Stubborness?
Lack of insight?

Emerson’s definition
"culturally abnormal behaviour(s) of such intensity, frequency or duration that the physical safety of the person or others is placed in serious jeopardy, or behaviour which is likely to seriously limit or deny access to the use of ordinary community facilities"


How do we learn behaviours?
From reward (reinforcement)
Through association
From role modelling
From unique human ability of reflection on action/learning from mistakes?

How do we unlearn behaviours?
Through punishment?
Through negative reinforcement?
Through extinction?
Through rewarding alternative experiences

Why do challenging behaviours arise?
Behaviours or actions exist because they serve a function
Challenging behaviours are no different
Functions:
Get needs met
Communicate thoughts/feelings
Avoidance
Sensation

Maintaining and promoting rules & boundaries:
Don’t be afraid to say when CB is not appropriate- clearly describe to a client when behaviour unacceptable
Consistency is key
Maintaining equal/professional relationships
Promoting team approaches rather than split teams

Improved communication:
What is the behaviour trying to express?
Functional assessment/ABC analysis
Liaison with speech and language
Communication aids/development
Relationships

Proactive strategies and environmental changes:
Consistency is key: Follow nursing guidelines/plans
Observe and record what rewards apply to an individual
Assessment of Frequency-Intensity-Duration-Onset (FIDO)
Think about environment/places/people/promiximity etc
Make environment safe when addressing CB
Be aware of cognitive limitations when planning activities

Reactive strategies:
Consistency is key: following team nursing guidelines
Make sure people are safe
Firstly, state when behaviour is unacceptable
Secondly, guide toward alternative behaviours
Reward positive alternative behaviours
Team liaison
Try not to inadvertantly reinforce CB
Time out strategies only work if followed to the tee with no exceptions

Awareness of feelings/attributions:
Challenging behaviour can evoke strong feelings in us. Sometimes they create anger/sadness/guilt/dislike. Incidents can sometimes remind us of previous experiences, events or people.
The feelings are really important because:
They can influence how we respond and deal with the behaviour

Talking about CB to colleagues and learning from past events:
CB creates staff stress
Evidence says support/talking helps
Open culture of learning from mistakes
Psychology’s door is open if strong feelings arise

Responding to Challenging Behaviour Summary:
Maintaining and promoting rules & boundaries
Improved communication
Proactive strategies and environmental changes
Reactive strategies
Awareness of feelings/attributions
Talking about CB to colleagues and learning from past events

Tuesday, 9 February 2010

Accelerated Forgetting and the Neuropsychological Assessment of Memory in Epilepsy

Patients with epilepsy frequently complain of memory difficulties yet often perform normally on standard neuropsychological tests of memory. It has been suggested that this may be due to an impairment of very long-term memory consolidation processes, beyond those normally assessed in the neuropsychological clinic.

Blake et al. (2000) found despite normal learning and retention over 30 min, patients with epileptic foci in the left temporal lobe performed disproportionately poorly on the long-term test compared with both patients with epileptic foci in the right temporal lobe and controls. Findings provide evidence for an extended period of memory consolidation and point to the critical region for this process, at least for verbal material, in the left temporal lobe.

Zeman et al. 1998 studied the concept of transient epileptic amnesia (TEA). TEA usually begins in later life, with a mean age of 65 years in this series. Episodes are typically brief, lasting less than one hour, and recurrent, with a mean frequency of three a year. Attacks on waking are characteristic. Repetitive questioning occurs commonly during attacks. The anterograde amnesia during episodes is, however, often incomplete so that patients may later be able to “remember not being able to remember”. The extent of the retrograde amnesia during attacks varies from days to years. Most patients experience other seizure types compatible with an origin in the temporal lobes, but transient amnesia is the only manifestation of epilepsy in about one third of patients. Epileptiform abnormalities arising from the temporal lobes are most often detected on interictal sleep EEG. Despite normal performance on tests of anterograde memory, many patients complain of persistent interictal disturbance of autobiographical memory, involving a significant but variable loss of recall for salient personal episodes. He hypothesises that post ictal states (5-30 mintues following seizure) may be responsible for disrupting the consolidation of long term memories, thus explaining accelerated forgetting. Direct links between temporal lobe epilepsy and memory difficulties is complicated by a number of confounding variables:

• Anti-convulsent medication side effects
• Age of epilepsy onset
• Seizure frequency
• Structural damage arising from epileptic activity

See Butler and Zeman for a comprehensive and up to date review of the issues
http://brain.oxfordjournals.org/cgi/reprint/131/9/2243

Thursday, 4 February 2010

Improvised Neuropsychological Assessment

Neuropsychological batteries and tests are usually reliably normed, conceptually well validated and thorough. However, they often take a long time to administer and are sometimes not at hand when assessment opportunities present themselves. Moreover, they are often not practicable or a client develops an adversity to testing.

Informal 'on-the-spot' testing using a magazine on a topic they are interested may provide a 'make shift' or improvised assessment opportunity.

Using Something as accessible and simple as a magazine can provide many assessment opportunities:

Memory- LTM can be assessed by using magazine features to trigger autobiographical memories; new memories can be assessed by asking the client to remember an item in the magazine for testing later; WM can be testing by asking a client to repeat back a short story or sentence.

Neglect- Look for missed words/pictures when asked to read/describe magazine.

Apraxias- Point to items, turn pages, match items in magazine to surroundings.

Praxis- can the client name items/objects in magazine.

Comprehension- understand the gist of article

Attention- can concentrate on magazine without distraction/fatigue.

Speech- any read aloud from magazine.

Colour agnosia- are colours recognised/matched?

Prosopagnosia- Are famous faces easily recognised?

Dyslexia- read part? Understand it?