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Mental Health and Illness - PowerPoint PPT Presentation

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Mental Health and Illness. An Epidemiological Perspective. Mental Health-Everybody’s Business. Peter Sims Professor of Public Health medicine University of Papua New Guinea <>. Teaching and Learning Aims.

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Mental Health and Illness

An Epidemiological Perspective

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Mental Health-Everybody’s Business

  • Peter Sims

  • Professor of Public Health medicine

  • University of Papua New Guinea

  • <>

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Teaching and Learning Aims

  • There is ignorance, superstition, stigma and fear around Mental Illness

  • Aetiology, pathogenesis diagnosis and treatment are imperfect.

  • There is a different paradigm and a less rigorous epidemiology

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Often sad,sometimes mad,occasionally bad

  • The medical model is

  • insufficient

  • Diagnosis is largely

  • clinical and experiential

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More of an art than a science

  • Treatment is pragmatic

  • Prevention is about the politics of health

  • “populations,people pressures, poverty”

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Mental illness is common 6 in 10 women and 4 in 10 men

in Western Europe and North America will have a

significant mental illness during their lifetime

Mental illness can affect any one of us

Mental illness occurs in all societies and cultures

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A Holistic Approach


Arrow of Time




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IQ = 100


I.Q. = the Mental Age x 100 the Chronological age

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  • Each human being is unique

  • We all have different personalities

  • My personality reflects genetic inheritance and Environment

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The Parent



The Adult

The Child


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The Subconscious Mind

The Conscious

The Subconscious

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Affective Disorders

Anxiety,depression,mania,obsessional disorders



Organic states


Personality Disorder

Abnormal personality,Psychopathy

A Classification

Substance abuse problems

Drugs, alcohol

Learning disorders


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The Classification of Mental Illness:The NeurosesDepression, Anxiety, Mania, Obsessions and compulsions(usually the patient retains insight and orientation; they experience deep distress and may commit suicide)The PsychosesSchizophrenia, puerperal psychosis(the patient is disorientated, deluded, and lacking in insight)The DementiasProgressive deterioration with loss of recent memory and deterioration of a normal personality,They may be primary or more commonly secondary to another condition e.g. alcohol, stroke

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The Classification of Mental Illness

Drug Problems

Addictive drugs, (Heroin, Cocaine, Amphetamines,) alcohol and drug related illness-psychosis, delirium and dementia

Personality Disorders

A personality and behaviour that is damaging to the individual and/or to society and which is not tolerated by the dominant culture

Mental subnormality/learning disorders:

Problems around intelligence and ability to learn on the basis of teaching and experience

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Inheritance-Genetics/Intra-uterine environment Schizophrenia,Huntington’s

Drug Abuse

Alcohol,Heroin etc



Neurological diseases

MS,Brain tumour

Trauma/head injury






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Treatment and Care

Hospital Care

Community Care

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Preventive NetworksChurch,Family, Home, Friends, Work

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The Mental Health Act

Compulsory Psychiatric Treatment

Criminal responsibility

Power of attorney

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Mental Handicap/learning disability

The mind of a young child in the body of an adult

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Canst thou not minister to a mind diseased,

Pluck from the memory a rooted sorrow,

Raze out the written troubles of the brain,

And with some sweet oblivious antidote

Cleanse the stuff’d bosom of that perilous stuff

Which weighs upon the heart?