Kylie M. Dingwall

Psychological and cognitive assessment of Indigenous Australians

Objective: The aim of the present review was to evaluate the psychological and cognitive assessments that have been considered suitable for Indigenous Australians. This will provide a basis from which future developments can occur, leading to improved mental health services for Indigenous Australians. Method: Literature searches of key health science databases were conducted using the following search terms in various combinations: Indigenous, Aboriginal, cognitive, assessment, mental health, social emotional well-being, psychological, Australian. Psychological, mental health or social and emotional well-being assessments as well as cognitive assessments that have been utilized and found suitable in Indigenous Australian populations were reviewed. Results: A limited number of assessments were found and discussed and these varied in their applications. Conclusions: Further research and development is necessary to establish a national approach to assessing or screening mental health and cognitive function among Indigenous Australians. This is an important and necessary step to improve mental health and related services for Indigenous Australians.

“People like numbers”: a descriptive study of cognitive assessment methods in clinical practice for Aboriginal Australians in the Northern Territory

BackgroundAchieving culturally fair assessments of cognitive functioning for Aboriginal people is difficult due to a scarcity of appropriately validated tools for use with this group. As a result, some Aboriginal people with cognitive impairments may lack fair and equitable access to services. The objective of this study was to examine current clinical practice in the Northern Territory regarding cognitive assessment for Aboriginal people thereby providing some guidance for clinicians new to this practice setting.MethodQualitative enquiry was used to describe practice context, reasons for assessment, and current practices in assessing cognition for Aboriginal Australians. Semi-structured interviews were conducted with 22 clinicians working with Aboriginal clients in central and northern Australia. Results pertaining to assessment methods are reported.ResultsA range of standardised tests were utilised with little consistency across clinical practice. Nevertheless, it was recognised that such tests bear severe limitations, requiring some modification and significant caution in their interpretation. Clinicians relied heavily on informal assessment or observations, contextual information and clinical judgement.ConclusionsCognitive tests developed specifically for Aboriginal people are urgently needed. In the absence of appropriate, validated tests, clinicians have relied on and modified a range of standardised and informal assessments, whilst recognising the severe limitations of these. Past clinical training has not prepared clinicians adequately for assessing Aboriginal clients, and experience and clinical judgment were considered crucial for fair interpretation of test scores. Interpretation guidelines may assist inexperienced clinicians to consider whether they are achieving fair assessments of cognition for Aboriginal clients.

Cognitive recovery during and after treatment for volatile solvent abuse

BACKGROUND Cognitive impairment reflecting CNS disruption in chronic solvent abusers can resolve within two years of abstinence. However, the specific time course for recovery has yet to be determined empirically. This study monitored cognition among solvent (i.e., gasoline) abusers throughout 8 weeks of residential treatment. It also investigated the extent to which solvent-related cognitive impairments persisted following discharge. METHODS Non-drug using healthy controls (n=33) and solvent abusers (n=29) who had inhaled gasoline, regularly or episodically, for an average of 4.3 years (SD=2.7) were assessed. Using linear mixed model analyses, solvent abusers were compared to healthy controls throughout treatment at baseline, two weeks, four weeks and six weeks, on visual motor, attention, learning, memory, and executive function tasks. Ten users who maintained abstinence were reassessed an average of 12 months later (SD=2.8) and were compared to healthy controls (n=12) retested at the same time interval using ANCOVA while controlling for age and baseline performance. RESULTS At baseline, solvent abusers showed cognitive deficits on visual motor, learning and memory, paired associate learning, and executive functions. Paired associate learning performance improved within 6 weeks of abstinence, however, impairments in visual motor speed, learning and memory, and executive function persisted throughout and in some cases beyond treatment. CONCLUSIONS Cognitive deficits exist for solvent abusers upon treatment entry. Some impairments resolve within weeks of abstinence, while memory and executive function improves gradually over months to years of abstinence, and might never fully recover.

Detecting psychological symptoms related to substance use among Indigenous Australians

INTRODUCTION AND AIMS Substance misuse and psychological comorbidities can be common and may impact negatively on treatment outcomes. However, without appropriate tools, detecting psychological symptoms for Indigenous people can be difficult. This study assessed the appropriateness of an eight-item screening tool (based on Strong Souls) for measuring any relationships between substance use and psychiatric symptoms for Indigenous Australians. DESIGN AND METHODS Indigenous Australians attending secondary or tertiary education institutions or substance use rehabilitation facilities in the Northern Territory (n = 407; mean age = 27.82) were assessed for depressive, anxiety and psychotic symptoms. The group represented 45 language groups from 95 urban and remote communities. English comprehension was measured on a scale from 0 (no understanding) to 10 (excellent understanding; M = 7.99, SD = 2.31). Ordinal regression analyses examined any associations between demographic and substance use factors and psychological symptoms. RESULTS Compared with non-users, current cannabis users were significantly more likely [odds ratios (ORs) = 2.2-4.4] to experience depressive or anxiety symptoms. Frequent cannabis users experienced more symptoms than occasional users. Prior-inhalant users were more likely to feel lonely (OR = 2.18) compared with non-inhalant users. Frequent alcohol users were less likely (OR = 0.44) to feel sad than non-users. These results are interpreted with respect to previous research and methodological limitations. DISCUSSION AND CONCLUSIONS Symptoms of depression or anxiety may be common for individuals seeking treatment for substance misuse and with minor improvement, these eight-items may provide a useful screen for psychological symptoms in Indigenous Australians.

The importance and challenges of assessing cognition in Indigenous Australians.

Objectives: The aim of this paper was to investigate the importance and challenges involved in conducting serial cognitive assessments among healthy Indigenous adolescents. Method: Cognitive assessments were conducted at fortnightly intervals for 2 months and again at 6 and 12 months among a group of Indigenous students from a boarding school in the Northern Territory. These students were to be the healthy control group in a long-term study of substance abuse. Recruitment and attrition rates were reviewed and related challenges for assessing participants were identified. Results: From the recruited sample (n=49), 18% reported heavy or frequent use of alcohol, cannabis or petrol. Males were more likely to have used these substances compared to females. Attrition increased as the follow-up interval increased with 49 recruits reducing to 32 in the first 2 months and only 15 and 13 of the initial group remaining for the 6 and 12 month follow-ups respectively. Conclusions: Main challenges included (i) appropriateness of tests and assessment processes, (ii) high rates of substance abuse and other illness in the control group and (iii) high attrition rates. The importance of assessing cognition appropriately is highlighted by a lack of information regarding mental health issues in Indigenous populations.

Assessing Cognition Following Petrol Sniffing for Indigenous Australians

Background: Chronic petrol inhalation can be associated with significant cognitive impairment. While rehabilitation programs can rely on such skills to educate clients and achieve treatment outcomes, cognitive function is rarely assessed on admission. This is particularly true for Indigenous populations where standard assessments are not appropriate. This paper describes a process for assessing cognition in Indigenous Australians. Two studies investigate firstly the demographic factors impacting on cognition for healthy Indigenous Australians and secondly the utility of the assessment process for detecting petrol sniffing related cognitive impairments. Methods: Study One assessed a naturalistic sample of healthy Indigenous Australians from the Northern Territory (N = 206; mean age = 28.03) on computerised tests of psychomotor speed, visual attention, memory, learning, spatial awareness and executive functions. Multiple regression analyses determined the unique contributions of six factors (age, education, gender, familiarity with computers, regular long term cannabis use and locality) to the variance in performance for this group. Study Two examined group differences in cognitive performance on the same tests between healthy Indigenous Australians (N = 96) and Indigenous petrol sniffers (N = 50; both age restricted to < 26 years) while controlling those factors found to impact on performance from Study One. Results: Age, computer familiarity, and education significantly contributed to the variance in performance measures. While controlling these factors, petrol abuse was associated with poorer performance on complex tasks of psychomotor, visual attention, memory, learning, spatial awareness and executive function. Conclusions: This assessment process is useful for detecting substance abuse related impairments in Indigenous Australians and when using this assessment process, age and computer familiarity in particular should be controlled for.

The mysterious practice of petrol sniffing in isolated Indigenous groups

The practice of petrol sniffing is a unique and poorly understood phenomenon that is associated with substantial morbidity, mortality and social devastation in affected remote Indigenous communities. For these groups and for the wider community, much mystery has surrounded the practice and its effects. Here we introduce the epidemiology of petrol sniffing among Indigenous groups internationally, review its impact on the brain, behaviour and social functions and summarise related interventions.

Recovery from Central Nervous System Changes Following Volatile Substance Misuse

This review examines cognitive, neurological, and neuroanatomical recovery associated with abstinence from volatile substance misuse (VSM). Articles describing functional or structural brain changes longitudinally or cross-sectional reports comparing current and abstinent users were identified and reviewed. A significant lack of empirical studies investigating central nervous system recovery following VSM was noted. The few case reports and group studies identified indicated that cognitive and neurological impairments appear to follow a progression of decline and progression of recovery model, with the severity of impairment related to the duration and severity of misuse, blood lead levels among leaded petrol misusers, and the duration of abstinence for recovery. By contrast, severe neurological impairment known as lead encephalopathy from sniffing leaded petrol occurred as more catastrophic or abrupt damage to cerebellar processes that may never fully recover. Neuroanatomical damage may not recover even with prolonged abstinence.

Factors associated with continued solvent use in Indigenous petrol sniffers following treatment.

INTRODUCTION AND AIMS While petrol sniffing afflicts several isolated Indigenous groups internationally, few studies have examined the factors contributing to continued sniffing following treatment.This study aims to describe those factors in a group of Aboriginal Australian users. DESIGN AND METHODS During residential treatment, 56 petrol sniffers completed baseline demographic and substance use questionnaires and cognitive and psychological assessments. Eighty per cent were reassessed and interviewed an average of 9 months (SD = 4) later. Cognitive, psychological, substance use and sociocultural factors were compared between those who relapsed at follow up and those who maintained abstinence. RESULTS More males (n = 44) than females (n = 12) were studied. Of the 45 individuals followed up, 58% (n = 26) relapsed. Significant risk factors for relapse included the ready availability of petrol, living in urban centres, being unmarried and living with fewer people (P < 0.05). Other potential risk factors, indicated by P-values < 0.10, included younger age of first petrol use, having sniffed within 14 days prior to treatment, poly substance use, sniffing in response to negative emotions, and feeling lonely at baseline and having sleep problems at follow up. DISCUSSION AND CONCLUSION This study identified psychosocial factors that may be associated with continued petrol sniffing among Aboriginal Australians post treatment. Future research, interventions and policy relating to petrol sniffing should consider these factors.

Evaluation of a culturally adapted training course in Indigenous e-mental health:

Objective: To report the impact of the Indigenous e-mental health training course ‘Yarning about Indigenous Mental Health using the AIMhi Stay Strong App’. Method: Participants were trained in e-mental health and the use of one of the first culturally adapted e-mental health interventions – The AIMhi Stay Strong App. Between October 2013 and December 2014, 138 participants completed the ‘Yarning about Indigenous Mental Health using the AIMhi Stay Strong App’ training course and 130 completed pre- and post-training questionnaires to explore knowledge and confidence in a number of areas trained. Results: Paired t-tests showed significant improvements across all measures of skill and knowledge except for confidence in using computers. Conclusions: E-mental health is a relatively new development that may contribute to improved access to mental health services for rural and remote Indigenous Australians, particularly where such tools are culturally adapted. Whilst current knowledge and use of e-mental health tools in this group of Northern Territory service providers was limited, perceived knowledge and confidence in use was significantly improved following training.