lecture 2 Flashcards

1
Q

What is a Paradigm

A
  • …a set of basic assumptions, a general perspective, that
    defines how to:
  • conceptualize and study a subject
  • gather and interpret relevant data
  • think about a particular subject
  • A paradigm is a framework, or perspective, that shapes
    the way we think about problems in the world (in our
    case, human behaviour).
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2
Q

Paradigms in the Study of Mental
Disorders

A
  • Biological Paradigm
  • Cognitive-Behavioural Paradigm
    -Behavioural perspective
  • Cognitive perspective
  • Psychoanalytic paradigm
  • Humanistic Paradigm
  • Integrative Paradigms
  • Diathesis–stress
  • Biopsychosocial
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3
Q

Etiology

A

the cause or origin of a disease

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4
Q

Symptomatology

A

the study of, or the treatment of, the
symptoms of a disease

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5
Q

Biological Paradigm

A

Mental disorders caused by aberrant or
defective biological processes

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6
Q

what does the biological paradigm focus on

A

Focuses on
* Genetic Heritability
* Neurochemical Communication
* Brain Structure

Focus on interaction between organic functioning
(genetics, physiological & neurological systems) and
behaviour (normal & abnormal).

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7
Q

Genotype

A

unobservable genetic constitution
* The total genetic makeup of an individual
* Fixed at birth, but it should not be viewed as a static entity

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8
Q

Phenotype

A

totality of observable, behavioural
characteristics
* Dynamic (i.e., it changes over time)
* Product of an interaction between genotype and environment

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9
Q

Family method

A

Can be used to study a genetic
predisposition among members of a
family b/c the average number of
genes shared by two blood relatives is
known
* Index cases, or probands
* Individuals who bear the diagnosis in
question.

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10
Q

Twin method

A
  • Concordance rates
  • When the MZ concordance rate is higher
    than the DZ rate, the characteristic being
    studied is said to be heritable.
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11
Q

adoptees method

A

In the adoptees’ study method, researchers identify proband birth parents with a certain characteristic (e.g., alcoholism) and then examine the outcome of these probands’ adopted-away children.

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12
Q

Molecular genetic studies identify:

A

which genes are involved
in behavioural disorders

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13
Q

Linkage analysis

A

uses genetic markers as a clue in locating
genes controlling disorders

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14
Q

Genetic Marker

A

a gene for which we know the location and
function.
* Genes have a tendency to be passed along in clusters, so if we can
find some characteristic that is generally inherited along with the
disorder (and if we know the gene location for that characteristic),
then we can look at nearby genes to find a gene for the disorder.10
Molecular Genetics: Method

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15
Q

Frontotemporal Dementia (FTD):

A

The second most common type of dementia other
than Alzheimer’s disease

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16
Q

Epigenetics

A

heritable changes in gene activity that are
caused by environmental experience

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17
Q

Dias & Ressler (2014)

A
  • Examined an inherited fear response
  • Trained male mice to fear the smell of acetophenone (a chemical scent comparable to cherries or almonds) by
    exposing them to the smell while being given a series of electric shocks
  • The mice eventually gave a fear response (shuddering) to the smell
    -The mice were then bred, and the offspring were tested
    with the smell (descendants had no contact with male
    parent)
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18
Q

Each neuron has four major parts:

A
  • (1) the cell body
  • (2) several dendrites
  • (3) one or more axons of varying lengths
  • (4) terminal buttons
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19
Q

Nerve impulse

A

A change in the electric potential of the cell that
travels down the axon to the terminal endings

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20
Q

Synapse and neurotransmitters

A

Chemical substances that allow a nerve impulse
to cross the synapse.

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21
Q

Mental Disorder in regards to synapse

A

Imbalance in levels of
one or more
neurotransmitters
* Receptors are the issue

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22
Q

Neurotransmitters & Abnormal Behaviour

A

Abnormal behaviour can result from disturbances in
neurotransmitter systems in various ways:
* Too much/little of the neurotransmitter produced or released
* Too few/many receptors on the dendrites
* Excess/deficit of the transmitter-deactivating substance in
the synapse
* Reuptake process may be too rapid/slow
* In addition, the effects may change depending on the
location of the disturbance

23
Q

Biological Approaches to Treatment of mental disorders

A

Prevention or treatment of mental disorders should
be possible by altering bodily functioning
* Psychoactive medications
* Deep brain stimulation

24
Q

Behavioral Paradigm: Learning

A
  • Learning is an adaptive process in which the tendency to perform a particular behaviour is changed by experience.
  • Behavioural theories attempt to relate units of behaviour, called responses, to units of the environment, called stimuli.
25
Behavioral Paradigm: Classical Conditioning
* Unconditioned stimulus (UCS) * Unconditioned response (UCR) * Conditioned stimulus (CS) * Conditioned response (CR)
26
What happens to the CR when the repeated CS is not followed by UCS
fewer and fewer CRs are elicited and the CR gradually disappears
27
Conditioned Emotional Responses
* Many stimuli are able to arouse emotional responses * Phobias are probably an example of a conditioned emotional response
28
* Phobias
an unreasonable fear of specific objects or situations, learned through classical conditioning
29
The Two-factor Theory of Avoidance Learning in phobias (Mowrer, 1947)
1. Classical conditioning establishes the aversive response to the neutral stimulus 2. Thereafter, the organism avoids the CS in order to prevent feeling afraid. This removal/avoidance of the CS diminishes the fear response (which is rewarding the avoidant behaviour)
30
Thorndike’s Law of Effect
* Behaviour that is followed by + consequences will be repeated. * Behaviour that is followed by – consequences will be discouraged.
31
positive and negative reinforcement
* Positive reinforcement: Strengthening of a tendency to respond by virtue of the presentation of a pleasant event - Positive reinforcer * Negative reinforcement: Strengthens a response by the removal of aversive events
32
Behaviour Modification
* Uses extinction - Not giving the desired reaction to the problem behaviour * Combined with reinforcement -Giving some sort of reward, such as parental attention, when the individual is engaging in a desired behaviour
33
Cognitive Perspective:
* Focuses on abnormal behavior as the product of dysfunctional or faulty beliefs * Many psychological disorders involve cognitive disturbances (hallucinations, disordered thinking, irrational thought patterns & beliefs) * Cognitive disturbances may be the cause of some disorders (maladaptive attributions, learned helplessness)
34
Cognitive Distortions
Disorders are often associated with specific patterns of faulty or disordered thinking * Magnification * Overgeneralization * Selective abstraction
35
Negative Cognitive Triad
Pessimistic view of the self, the world, and the future
36
Cognitive Appraisal and its attributions
evaluating the stimulus and/or interpreting the situation * Attributions: * events happen * we attempt to explain “why” the event happened (search for a cause) * we come up with a “causal ascription” (an explanation of why the event occurred)
37
Learned Helplessness
When a person faces uncontrollable stress in their lives, they are at risk of becoming depressed. The individual makes an attribution that they have no control, and this leads to feeling depressed
38
Hankin 2008
Assessed 350 youth (ages 11-17) in four waves over five months * Measured: cognitive style, anxious and depressive symptoms, mood state, general internalizing (emotional) and externalizing (conduct, hyperactivity-inattention) emotional and behavioural problems, and life events * Results using hierarchical linear modeling show that a negative inferential style interacted with negative events to predict prospective symptoms depression
39
irrational beliefs
maladaptive behaviour is due to the individual’s response to events. Responses are based on irrational beliefs about the world
40
a belief is irrational if:
it distorts reality, it is illogical, it prevents you from reaching your goals, it leads to unhealthy emotions, it leads to self-defeating behaviours
41
psychoanalytic paradigm
- ID (pleasure) -Ego (reality) -Superego (perfection)
42
objective anxiety
When one’s life is in jeopardy, one feels objective (realistic) anxiety—the ego’s reaction, according to Freud, to danger in the external world.
43
neurotic anxiety
a feeling of fear that is not connected to reality or to any real threat.
44
moral anxiety
arises when the impulses of the superego punish an individual for not meeting expectations and thereby satisfying the principle that drives the superego— namely, the perfection principle
45
psychoanalytic therapy
An insight therapy that attempts to remove the earlier repression and help the client face the childhood conflict, gain insight into it, and resolve it in the light of adult reality. - free association - dream analysis. Key components: - transference - countertransference - interpretation
46
interpersonal psychotherapy
* Focus on current interpersonal difficulties and discuss with client ways of relating to others. * No free association, dream analysis, indefinite treatment, dissection of early childhood, or dependence on therapist/treatment. * Shown to be an efficacious treatment relative to other treatments * But less so for clients in treatment for depression and who experienced childhood abuse or maltreatment
47
why is the psychoanalytic paradigm still relevant?
* Long-term psychoanalytic therapy has a moderate-to-high success rate * Short-term psychodynamic therapy is better than waitlist, TAU, and other comparable treatments
48
The humanistic paradigm
Emphasis is on the conscious awareness of needs, choice, and personal responsibility * Human nature is positive and life-affirming * Human need for growth and realizing one’s full potential Approach is a counter/response to psychoanalytic and behavioural traditions, both of which hold that people have little free will in determining their actions
49
Carl rogers
Focused on ways to foster and attain self-actualization * Self-actualization: Working toward reaching our highest potential in all areas of functioning. Not being distracted by other, more basic, motives * Fully functioning person: Person who is working toward self-actualization * All individuals have an innate need for positive regard -Anxiety results when people get off track in pursuit of self-actualization
50
the humanistic paradigm, three basic premises provide the foundation for therapy:
* Phenomenological Approach: Importance of understanding and entering into the patient’s subjective world * Positive Growth: The promise of human potential and its uniqueness * Free Will: The importance of authenticity and its relation to freedom and responsibility
51
Diathesis-stress model
Diathesis: some predisposition that increases the risk/susceptibility for developing a disorder * Diatheses can be either biological (genetic coding for the functioning of a particular neurotransmitter system; teratogens during gestation) or psychological (childhood abuse; cultural pressures; cognitive style) * Stress: the predisposition will not necessarily lead to the development of a disorder without some stress to act as a trigger * Stressors can be biological (a physical illness), psychological (relationship stress, or mourning the loss of a loved one), or social (cultural pressure to meet certain standards)
52
three research focuses of stress
1. The environment: stress as a stimulus (stressors) 2. Reaction to stress: stress as a response (distress) 3. Stress as a process that includes stressors and strains, but includes relationship between person and the environment (coping)
53
defining stress
“The circumstance in which transactions lead a person to perceive a discrepancy between the physical or psychological demands of a situation and the resources of his or her biological, psychological, or social systems.
54
transactional model
1) Encounter a potentially stressful event or situation 2) Cognitive appraisals: * Primary appraisal – is this event positive, neutral or negative; and if negative, how bad? * Secondary appraisal – do I have the resources or skills to handle the event or demand of the situation?