CHAPTER 3, 5, 6 & 7 Flashcards
(457 cards)
What 2 processes are central to the study of psychopathology and eventually the treatment of psychological disorders?
(Ch 3)
The processes of (1) clinical assessment and (2) diagnosis
Define clinical assessment
(Ch 3)
The systematic evaluation and measurement of psychological, biological and social factors in a person presenting with a possible psychological disorder
Define diagnosis
(Ch 3)
The process of determining whether a presenting problem afflicting an individual meets the established criteria for a specific psychological disorder as set in a standard classification system for abnormal behaviour such as the DSM-5
What is the origin of the term ‘diagnosis’ and what does it mean?
(Ch 3)
Came from the Greek prefix – dia (through/setting apart/separating) and the term – gnosis (knowing/knowledge)
Diagnosis, thus means gaining knowledge by setting things apart and studying attributes of isolated phenomena in the world and how they interrelate in order to form an opinion about the whole
What are the 2 components/bodies of information needed to reach a diagnostic conclusion?
(Ch 3)
1) Psychological tests, 3rd party reports and lab investigations (secure symptoms and signs and interpret adjunctive sources of info)
2) Knowledge of normal functioning and behaviour and their pathological counterparts
These bodies are integrated to form a comprehensive understanding of the whole individual within society
What are the 2 constituents essential for clinical practice? Describe each and provide an example for each
(Ch 3)
- Symptom – characterises a state, condition or entity (constitutes any state that indicates the perceived presence or absence of something and the change from a former state/a manifestation of a state or condition that may indicate abnormality as reported by the afflicted individual)
E.g. – an elderly person complaining that they struggle to walk to the shops and lose breath easily whereas they used to be more capable - Sign – a manifestation of a state or condition that may indicate abnormality that is observed by another person (requires use of sense and observation)
E.g. – the family member or psychologist of an elderly person complaining that they struggle to walk to the shops and lose breath easily whereas they used to be more capable
What are the similarities and differences between symptoms and signs?
(Ch 3)
Similarities: both characterise the manifestation of a state or condition that may indicate abnormality
Differences: reported by the afflicted individual (symptom) and reported/observed by another person (sign)
These may be difficult to distinguish, however, as the boundary is not clear cut
It is more important to hone one’s skills to understand another human by allowing the person to express their experience, integrating that with what is observed and describing the phenomena at hand
What are the 3 pieces of information needed for the diagnostic process?
(Ch 3)
- Primary component – Who: Who is the individual in the consultation?
- Secondary component – Why: Why is this individual being consulted?
- Tertiary component – What: What can be observed and described?
What assessment methods are used to answer the 3 pieces of information needed for the diagnostic process?
(Ch 3)
These are answered using assessment methods in the diagnosis process such as:
1. the systematic collection of information (history)
2. examination (observing mental state and behaviour)
3. special, adjunctive (accompanying) and supportive investigation (standardised tests such as psychological and neuropsychological/physiological tests which serve to confirm/deny hypotheses rather than detecting the problem in the first place)
This helps in understanding the individual, their situation/context and the problem presented
What are the 3 paths/approaches to diagnosis? Describe them
(Ch 3)
- Algorithmic approach: diagnosis based on a decision process/algorithm (algorithmic approach) in which all observations are considered against all their possible causes
Often used by those new to the diagnostic process (novice psychologists/clinicians) - Hypothetico-deductive method/approach: clinician forms a hypothesis about the problem right from the outset in which the individual’s history presents the main substance of the hypothesis; this method exemplifies the logical underpinnings of the diagnostic process; focused and direct further enquiry is needed to confirm/deny these hypotheses
Often used by those familiar yet not fully experienced (intermediate psychologists/clinicians) - Pattern-recognition approach: Recognising patterns which includes recognising the typical, predictable co-occurrence of events and observations
Often used by those familiar with the diagnostic process (experienced psychologists/clinicians)
A combination of these 3 approaches is most effective and reliable (can also switch between 3 depending on individual and situation to get more accurate diagnostic formulations)
The examination and special investigations provide similar conclusions/information
Describe the algorithmic approach to diagnosis and provide a pro and con of this approach
(Ch 3)
Algorithmic approach: diagnosis based on a decision process/algorithm (algorithmic approach) in which all observations are considered against all their possible causes
Often used by those new to the diagnostic process (novice psychologists/clinicians)
Pros of algorithmic approach – exhaustive/comprehensive
Cons of algorithmic approach – time-consuming
Describe the hypothetico-deductive method/approach to diagnosis and provide a pro and con of this approach
(Ch 3)
Hypothetico-deductive method/approach: clinician forms a hypothesis about the problem right from the outset in which the individual’s history presents the main substance of the hypothesis; this method exemplifies the logical underpinnings of the diagnostic process; focused and direct further enquiry is needed to confirm/deny these hypotheses
Often used by those familiar yet not fully experienced (intermediate psychologists/clinicians)
Pros of the hypothetico-deductive method – objective, reliable & valid (allows hypothesis confirmation/denial when tested against empirical evidence which provides more accurate diagnoses)
Cons of the hypothetico-deductive method – may be biased and overly simplistic (disregards complex and context dependent situations)
Describe the pattern-recognition approach to diagnosis and provide a pro and con of this approach
(Ch 3
Pattern-recognition approach: Recognising patterns which includes recognising the typical, predictable co-occurrence of events and observations
Often used by those familiar with the diagnostic process (experienced psychologists/clinicians)
Pros of pattern-recognition approach – efficient
Cons of pattern-recognition approach – ignores unusual presentations of symptoms/signs
Which diagnostic approach is best?
(Ch 3)
A combination of these 3 approaches is most effective and reliable (can also switch between 3 depending on individual and situation to get more accurate diagnostic formulations)
Which diagnostic approach/condition is considered dangerous (perilous) and why?
Pathognomonic diagnosis: pathognomonic = one symptom or sign/one set of symptoms or signs that uniquely define a state or condition
These conditions are rare, and this approach is dangerous as it can lead to overlooking other potential causes or problems and potentially missing other relevant medical or psychological issues
Define pathognomonic (diagnosis)
Pathognomonic - means one symptom or sign/one set of symptoms or signs that uniquely define a state or condition
Pathognomonic diagnosis - findings that are distinctive or characteristic of a particular disease or condition and can be used to make a diagnosis
Explain the course of the clinical process
(Ch 3)
Clinical process – collecting a lot of information across a broad range of an individual’s condition –> get overall sense of functioning –> rule out problems in irrelevant areas –> concentrate on areas that seem most relevant –> determine what source/cause is
What are the 2 main types/levels of diagnosis?
(Ch 3)
- Phenomenological/experiential diagnosis
- Syndromal diagnosis
Name and describe the 2 main types/levels of diagnosis?
(Ch 3)
- Phenomenological/experiential diagnosis:
Only/solely reliant on observed and reported information (clinical information) that is available
Without behavioural and developmental information of course of condition over time, no further conclusions can be drawn - Syndromal diagnosis:
Involves the recognition of the occurrence of predictable clusters of phenomena
More information is provided on the presentation, as enough phenomena can be observed to recognise clustering
Syndrome = means ‘running together’
E.g. Delirium is a syndrome characterised by decreased arousal, poor attention, hallucinations and other cognitive disturbances
All phenomena/symptoms must co-exist and co-occur at the same time and at a higher rate than chance alone to be considered for a diagnosis of a condition or for the constitution of a syndrome
Without evidence on what caused it and what its outcome may be, it is only a phenomenological diagnosis
The syndrome needs to be combined with the evolution (course, cause, outcome) of the pathology (abnormal behaviour) over time in order to develop a syndromal diagnosis and reach the level of disorder
Most psychological/mental conditions are understood at this descriptive, syndromal and disorder level of diagnosis
What are some other types of diagnoses?
(Ch 3)
Pathogenic, aetiologic and anatomical diagnoses
Functional diagnosis
Differential diagnosis
Name and describe some other types of diagnoses
(Ch 3)
- Pathogenic, aetiologic and anatomical diagnoses
Pathogenic (leading to disease), aetiologic (causes) and anatomical (body structure) diagnoses are much less understood however there are developments in the neurocognitive field (anatomical)
Example of pathogenic – Huntington’s disease (mutations in genes leading to disease)
Example of aetiologic – neurosyphilis (caused by infection of the CNS)
Example of anatomical - Alzheimer’s disease (more information on the connection between brain structures and Alzheimer’s disease) - Functional diagnosis
The diagnosis of mental health conditions where physical symptoms, such as movement or sensory problems, are present but cannot be explained by a neurological or other medical condition like that of pathogenic, aetiologic and anatomical diagnoses
This diagnosis is useful as it emphasises the functional implications of a condition (ways in which a mental health disorder affects a person’s ability to function effectively in various aspects of their life)
This is very useful in diagnosis and treatment plans for traumatic brain injuries, chronic psychotic conditions and neurodevelopmental disorders as it focuses on long-term effects - Differential diagnosis
There are many possible explanations (pathways, causes, courses, etc) to account for an individual’s presentation of symptoms/signs, especially when less information is provided or available
This leads to multiple hypotheses and potential disorders and thus, the existence of a differential diagnosis
Differential diagnosis: a list of possible conditions that conform to the available clinical information
As the diagnostic process continues, more information is collected, more is understood about the presenting problem and more accurate hypotheses are made until the most relevant one results in a diagnosis (final diagnosis is arrived at only once other hypotheses and disorders have been eliminated through further investigation)
Define differential diagnosis
a list of possible conditions that conform to the available clinical information
What are the 3 levels of understanding abnormal psychology? Describe them
(Ch 3)
- Syndrome
* ‘Running together’
* Implies the clustering of given symptoms, signs and results of special investigations
* These need to occur regularly and predictably so as to constitute a syndrome or condition
* Syndrome: a set of clinical and supporting info that co-occurs at a frequency greater than change - Disorder
* Makes up a syndrome along with its clinical course
* In addition to its presenting symptoms & signs, behaviour over time is also included
* This leads to more knowledge on how the abnormality developed
* Nothing is known about the cause however - Disease
* Consists of a combination of clinical phenomenology (manifestation of presenting phenomena), course of behaviour, pathogenesis (how disorder developed) and aetiology (cause)
What are the 3 concepts that determine the value of clinical assessments?
(Ch3)
- Reliability
- Validity
- Standardisation
These are the requirements needed to prove the efficiency and accuracy of assessment, as based on evidence