416Neurological conditions associated with changes in emotion and affect include:

416     Neurological conditions associated with changes in emotion and affect include:

a)      right hemisphere infarct and inappropriate jocularity;

b)      left hemisphere infarct and deep dejection, and dysphasia;

c)       left-sided temporolimbic seizure foci and ideational disorders; and

d)      right-sided temporolimbic seizure foci and mood disturbances.

417     The neuropsychiatric inventory (NPI) may be used to assess ‘no cognitive’ behavioural symptoms such as apathy, delusions, dysphoria, agitation/aggression, euphoria, hallucinations, irritability/lability, and aberrant motor behaviour (Cummings et al, 1994).

Table 12.4: Emotional or behavioural impairments

See notes to Table 12.4 for further information.

| %WPI | Criteria (all required) | | 0 | No limitation of activities of daily living and daily social and interpersonal functioning. | | 5 | Minor limitation of activities of daily living and daily social and interpersonal functioning attributable to the normal variation in the general population. | | 10 | Mild limitation of activities of daily living and daily social and interpersonal functioning. Impairment levels are compatible with most usual functioning.<br>Able to live independently, looks after self adequately, with occasional lapses in grooming and observing nutritional requirements.<br>Existing relationships strained. | | 30 | Moderate limitation of some activities of daily living and some daily social and interpersonal functioning. Cannot live independently without regular support.<br>Needs supervision and/or prompting to perform activities of self-care and personal hygiene.<br>Previously established relationships severely strained. | | 50 | Severe limitation in performing most activities of daily living.<br>Impairment significantly impedes useful functioning in most daily social and interpersonal functioning. | | 65 | Severe limitation in performing most activities of daily living.<br>Impairment significantly impedes useful functioning in most daily social and interpersonal functioning. Needs supervised residential care.<br>Unable to form or sustain long-term relationships. | | 80 | Completely unable to perform any daily activities, requiring total dependence on another person. Impairment levels preclude all useful functioning.<br>Unable to function within society. |

Notes to Table 12.4

1. ‘Supervision’ means the immediate presence of a suitable person, responsible in whole or in part for the care of the employee.
2. ‘Suitable’ person means a person capable of responsibly caring for the employee in an appropriate way.

12.5   Cranial nerves

418     Unless otherwise indicated, only the highest WPI rating from the preceding four categories (that is all tables in , , and ) may be combined with a WPI rating from one or more tables in the remainder of , and with WPI ratings from other chapters. (For further information about deriving WPI ratings from an assessment of cerebral function, see Steps 1 to 5 in the introduction to Chapter 12).