Psychological And Sociological Principles Flashcards

(194 cards)

1
Q

Mind and body dualism

A

What is the difference between the mind and brain

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2
Q

Advantages of classifications in health

A

Facilitate reporting and inform public health issues such as allocation of resources
•Facilitate meaningful communication and debate between patients, professionals, organisations and legislators
•Promote a feeling of being understood (“we’ve seen this before – your problems are not unique”)
•Provide a framework for research
•Offer evidence for treatment options and some information about natural history and prognosis

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3
Q

Disadvantages of classifications in health

A

Improved scientific understanding makes a mockery of previous attempts to classify (e.g. phrenology)
•Categorisation means defining thresholds which are arbitrary
•depression / dysthymia / fed up
•obese / well built / chubby / slender
•Categorisation can lead to stigma and prejudice
•Economy of thought may lead to oversimplification, reductionism and ultimately inhumane action

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4
Q

What is used to classify mental disorders

A

ICD 10

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5
Q

Role of emotion

A

Motivator for learning
Means of best obtaining rewards/avoiding punishment = stimulus-reinforcer association and instrumental (action-outcome) learning

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6
Q

Emotion

A

A strong feeling deriving from one’s circumstances, mood or relationship with others

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7
Q

Movement and emotion

A

Ability or inability to act determines which cluster of emotions is felt

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8
Q

Theories of emotion

A

Basic
Appraisal
Psychological constructionist
Bayesian model

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9
Q

Theories of emotion: appraisal

A

Meaningful interpretation of an object/situation by individual
Action readiness
May be automatic

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10
Q

Theories of emotion: psychological constructionist

A

Psychical compounds of basic ingredients (affect + ideational component)
Internal state subject of meaning analysis

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11
Q

Theories of emotion: basic

A

Biologically privileged emotion automatically triggered by objects/events
Hard-wired circuits
Variability: cultural ‘display rules’

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12
Q

Models of emotional categorisation

A

Discrete
Dimensional (valence and arousal)
Componential

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13
Q

Eckman’s 6 basic emotions

A

Anger
Disgust
Fear
Joy
Sadness
Surprise

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14
Q

Orbitofrontal cortex- appraisal

A

Input - ventral cortical streams (identity)

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15
Q

Orbitofrontal cortex: medial -reward

A

Activation: subjective pleasantness

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16
Q

Orbitofrontal cortex: lateral - punishment/ non-reward

A

Negative reward predictions error
Expectation of punishment

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17
Q

Mesolimbic pathway

A

Important in reward/behaviour responses
Connected to amygdala and orbitofrontal cortex
Ventral tegmental area

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18
Q

Amygdala- appraisal

A

Conditioned responses to stimuli predicting harm
Facial expression recognition
Slower response in reversal learning tasks
Little involved in subjective emotional experience

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19
Q

Identification of emotions

A

Sight- V1, V2, V4, inferior temporal visual cortex
Taste- nucleus of the solitary tract, thalamus, insular taste cortex
Smell- olfactory bulb
Touch- thalamus VPL, somatosensory cortex and insula
Auditory- temporal auditory cortex

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20
Q

Appraisal of emotions

A

Amygdala
Orbitofrontal cortex

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21
Q

Regulation of emotions

A

Cognitive and attentional top-down bias
Dorsal and ventrolateral frontal lobes

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22
Q

Reactivity of emotions

A

Cingulate cortex
Striatum/basal ganglia
Lateral hypothalamus, insula
Medial and ventromedial prefrontal cortex

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23
Q

Reactivity: cingulate cortex

A

Action-outcome learning
Anterior: outcome
Posterior: action
Mid: output to premotor areas

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24
Q

Posterior cingulate cortex inout

A

Parietal lobes- spatial/action related information

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25
Posterior cingulate cortex output
Hippocampus
26
Anterior cingulate cortex
Outcome Subgenual: reward signals from medial OFC Supracollosal: punishment/non-reward data from lateral OFC
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Mid cingulate cortex
Output to premotor areas (eg SMA)
28
Reactivity: ventromedial prefrontal cortex
Reward related decision making Synaptic networks signal value of chose offer
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Reactivity: hypothalamus and insula
Modulated by: OFC via anteroventral insula and subgenual cingulate cortex Amygdala- hypothalamus and Periaqueductal grey Feedback from autonomic output not needed for emotional behaviour/feelings
30
Suppression of emotions
Autonomic and endocrine responses
31
What part of the brain is involved in stimulus-response habit learning
Striatum/ basal ganglia
32
What part of the brain is involved in action-outcome learning
Cingulate cortex
33
What part of the brain is involved in choice value and decision making
Medial prefrontal cortex
34
What does OFC stand for
Orbitofrontal cortex
35
Sensation
A mental process resulting from the immediate external stimulation of a sense organ I.e. touch smell taste sight hearing
36
Perception
The ability to become aware of something or understand something following sensory stimulation I.e. tactile olfactory gustatory visual auditory
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Bottom up processing
Sensation
38
Top down processing
Perception
39
Bottom up processing-visual
Nasal/temporal retina Optic nerve Optic chiasma Lateral geniculate nucleus
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Top down processing -visual
Primary visual cortex- brain begins to process what you have seen and make connections
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2 forms of retina
Temporal Nasal
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Bottom up processing - auditory
Everything up to auditory cortex
43
Perceptual set
The psychological factors that determine how you perceive your environment
44
What adds to perceptual set
Context Culture Expectations Mood and motivation
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Illusion
An instance of a wrong or misinterpreted perception of a sensory experience
46
Hallucinations
Experiences involving the apparent perception of something not present
47
Features of bottom up processing
Immediate response before processing what has happened eg jumping when scared
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Features of top down processing
After brain processes what has happened
49
Gestalt theory effect
Used in advertising Subconscious top down processing to engage audience with advertising more different ways individuals group stimuli together in order to make a whole that makes sense to them.
50
Gestalt theory mechanisms
Proximity Common fate (parallel lines) Continuity Closure Symmetry
51
Thatcher effect
phenomenon where it becomes more difficult to detect local feature changes in an upside-down face, despite identical changes being obvious in an upright face
52
Hallucinations in psychiatry
Schizophrenia Depression with psychosis Bipolar affective disorder Schizoaffective disorder Drug induced psychosis Acute transient psychosis
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How many people experience hallucinations within their lifetime
1 in 20
54
Prevalence of schizophrenia
1 in 100
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What investigation is used to investigate hallucinations
fMRI
56
What can cause hallucinations
Neurological Drugs Sensory deprivation Abnormal physiological deprivations- eg sleep deprivation Infections - delirium Psychiatric illnesses
57
Hallucinations are …
Top down processing
58
Expectations and hallucinations
PTSD Expecting certain emotions
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Bio-psycho-social model of treatment
Bio = medications Psycho = psychologists - therapy Social= social networks, connections, friends, family
60
Delivery of raw data
Sensatiom
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Interpretation of raw data
Processing of raw data
62
How many categories of mental illness/conditions are there
9
63
9 categories of mental illness/conditions
The organic illnesses The dependency states – alcohol; drugs The mood disorders The anxiety states The psychoses The behavioural disorders Neurodiversity Childhood disorders Personality disorders
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The organic illnesses
The dementias Delirium Examples of rarer forms of organic presentations: B12 and Folate deficiency Cushing’s disease Thyrotoxic storm Wilson’s disease And many more physical illnesses
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Examples of rarer forms of organic presentations:
Examples of rarer forms of organic presentations: B12 and Folate deficiency Cushing’s disease Thyrotoxic storm Wilson’s disease And many more physical illnesses
66
The dementias
Alzheimer’s Vascular dementia Lewy body Frontotemporal
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Types of Alzheimer’s
Rx- acetylcholine esterase inhibitors Rx- glutamate bloackade
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Types of Vascular dementia
Subcortical Stroke related Multi-infarct
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The dependency states
Drugs eg heroin, cocaine, marijuana, amphetamines Alcohol
70
Mood disorders
Depressive illness (unipolar) Mania (unipolar) Bipolar Cyclothymia- extreme mood swings Low mood (adjustment disorders, burnout , life setting)
71
The anxiety states
Generalised anxiety disorder Panic attacks OCD Derealisation-depersonalisation
72
The psychoses
Schizophrenia Acute and transient psychosis Monosymptomatic delusion Post-natal (puerperal) psychosis Drug induced psychosis
73
The behavioural disorders
Sleep Sex Eating Hanits
74
Neurodiversity
The developmental disorders: Autism ADHD learning disability
75
Conditions related to childhood
Separation anxiety General anxiety states School refusal Other behavioural problems Sexual, psychological and physical abuse
76
Personality disorders
Borderline PD Dissocial PD
77
Causes of delirium
Infection Temperature
78
What is delirium
Acute onset of confusion
79
Dementia vs delirium
Onset - acute onset = delirium - progressive = dementia
80
How long does alcohol withdrawal take
2 weeks
81
How long heroin withdrawal take
72 hours
82
Symptoms and signs to look for in alcohol withdrawal
Epileptic fits Panicking anxiety Craving Physical tremors Vomiting Gastritis Red face
83
Clinical depression symptoms
Serotonin stimulated pathways: Loss of appetite Loss of sex drive Early morning waking (can get to sleep but wake up earlier than usual feeling awful- throughout the day begin to feel better)
84
When does a predisposition to alcohol attachment arise
25 years old
85
How many young men suffer with OCD
1 in 10
86
Which brain centre is stimulated with anxiety
Bed nucleus- anticipation of something going wrong Predictive behaviour
87
Role of the bed nucleus
Anxiety Gender identity Appetite Dampens startle response- in men only (somatostatin) Social recognition Parental bonding
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What drives sexual orientation
Hypothalamus
89
Eustress
Positive stress which is beneficial and motivating - typically the experience of striving for a goal which is within reach
90
Distress
Negative stress which is damaging and harmful - typically occurs when a challenge (or threat) is not resolved by coping or (rapid) adaptation
91
Physical stressors
Insults or injuries that produce direct physiological effects, eg damage of body rid due and/or bodily threat (pain, haemorrhage or inflammation)
92
Where are physical stressors processed
Brainstem and hypothalamus- reflexive
93
Stressors
Causes
94
Stress response
Physiological or psychological- mediated by the brain
95
Psychological stress
Stimuli that are perceived as excessively demanding or threatening, often involving anticipation
96
What areas of the brain are involved in psychological stress
Prefrontal cortex Amygdala Hippocampus
97
3 phases of stress response
Alarm Adaptation Exhaustion
98
Alarm
Threat identified- body’s response is state of alarm (fight or flight)
99
Adaptation
Body engages defensive countermeasures
100
Exhaustion
Body runs out of defences and resources are depleted
101
Homeostasis
Maintaining internal environment necessary for cell function
102
Allostasis
How complex systems adapt (eg via HPA axis) to changing environments by changing set-points
103
Allostatic load
Cumulative exposure to stressors , which if unrelieved leads to systems ‘wearing out’
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Acute stress
Brief response to a novel but short-lived situation experienced by the body as a danger Conscious perception of threat is not always involved Healthy and adaptive and necessary for survival = fight or flight
105
Causes of acute stress
Noise Short-term danger eg fire Brief physiological change eg hunger or cold Brief illness
106
Chronic stress
Arises from repeated or continued exposure to threatening or dangerous situations, especially those that cannot be controlled More likely to involve appraisal and conscious perception
107
Examples of chronic stressors
Physical illness, disability and pain Physical or sexual abuse Poverty including poor housing, hunger, cold or damp, debt Unemployment Bullying or discrimination Caregiving
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5 elements of human stress response
Biochemical Physiological Behavioural Cognitive Emotional
109
How are stress responses mediated
Via autonomic nervous system and hypothalamo-pituitary axis (HPA) Lead to changes that influence future responses to stress also reflecting brain plasticity
110
Sympathomedullary pathway
Hypothalamus activates the adrenal medulla Adrenal medulla (controlled by ANS) releases adrenaline and noradrenaline into the bloodstream Body prepares for fight or flight- adrenaline and noradrenaline reinforces the pattern of sympathetic activation eg increased heart rate and blood pressure Energy
111
Hormones involved in sympathomedullary pathway
Adrenaline Noradrenaline
112
The pituitary-adrenal system
Higher brain centres activate hypothalamus Hypothalamus releases corticotrophin (CRF) Pituitary gland releases adrenocorticotrophic (ACTH) Adrenal cortex releases corticosteroids Corticosteroids causes changes-liver releases energy and the immune system is suppressed
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Action of corticosteroids
Liver releases energy Immune system suppressed
114
Hormone the hypothalamus releases in response to stress
Corticotrophin (CRF)
115
Hormone the adrenal cortex releases in response to stress
Corticosteroids
116
Hormones the Adrenal medulla releases in response to stress
Adrenaline and noradrenaline
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Hormone the pituitary gland releases in response to stress
Adrenocorticotrophin (ACTH)
118
Catecholamines
Adrenaline Noradrenaline
119
Biochemical and molecular stress response
Steroids especially glucocorticoids (cortisol) Catecholamines (adrenaline & noradrenaline) The so-called sympathetic nervous system (SNS) ‘fight-or-flight’ chemicals Inflammation and immune response are important & complex, mediated and modified by adrenaline and cortisol. Effects can be pro- and anti-inflammatory, and GCCs also have direct effects on the CNS. Acute stress: immune suppression (anti-inflammatory) Chronic stress: partial immune suppression + low-grade chronic inflammatory response, possibly through epigenetic effects on gene expression Balance between immune activation & autoimmunity disrupted in chronic stress response (NB reduced vaccination response) Immunosenescence?
120
Acute stress and immune response
Immune suppression- anti-inflammatory
121
Chronic stress and immune response
partial immune suppression + low-grade chronic inflammatory response, possibly through epigenetic effects on gene expression Balance between immune activation & autoimmunity disrupted in chronic stress response (NB reduced vaccination response) Immunosenescence?
122
Fight or flight chemicals
Steroids= glucocorticoids (cortisol) Catecholamines = adrenaline and noradrenaline
123
Inflammation and immune response and stress
important & complex, mediated and modified by adrenaline and cortisol. Effects can be pro- and anti-inflammatory, and GCCs also have direct effects on the CNS.
124
Hormones involved in stress and immune response
Adrenaline Cortisol
125
Fast physiological stress response
Breathing more rapid to increase oxygen Blood flow increases up to 400%, directed to heart & muscles Increased heart rate & blood pressure Muscles tense Glucose released, insulin levels fall: boost energy to muscles Red blood cells discharged from the spleen Mouth becomes dry & digestion is inhibited Sweating Cytotoxic & surveillance WBCs go where injury & inflammation may occur i.e. bone marrow, skin, lymph nodes
126
Immunosenescence
Rapid aging of the immune system as a response to chronic stress
127
Physical (somatic) effects of chronic stress
Headache Chest pain Stomach ache Musculoskeletal pain Low energy Loss of libido Colds & infections Cold hands & feet Clenched jaw & grinding teeth
128
Behavioural responses to stress
Easily startled & hypervigilant Change in appetite – both directions Weight gain (obesity) or weight loss Procrastinating and avoiding responsibilities Increased use of alcohol, drugs & smoking Nail biting, fidgeting and pacing Sleep disturbances especially insomnia Withdrawal
129
Cognitive responses to stress
Constant worrying Racing thoughts Forgetfulness and disorganisation Inability to focus Poor judgement Being pessimistic or seeing only the negative side Altered learning
130
Emotional responses to stress
Depression & sadness Tearfulness Mood swings Irritability Restlessness Aggression Low self-esteem and worthlessness Boredom & apathy Feeling overwhelmed Rumination, anticipation & avoidance
131
What can modify the perception of threat
Context Appraisal Vulnerability Learning (past experiences)
132
Stress and illness
related to a host of illnesses, esp of cardiovascular and GI systems, ie those with strong ANS connections. Stress exacerbates physical illnesses and slows recovery and increases susceptibility to infection. Strong evidence of association between depression and mortality following an MI. Evidence of causal association between stress and physical illness is still limited, though note emerging evidence that chronic stress increases ‘immune ageing’. Exposure to stress (trauma) is greater in those experiencing deprivation and with less healthy lifestyles.
133
Stress and cancer
Stress linked to survival rather than incidence
134
Stress and cardiovascular disease
High blood pressure Abnormal heart rhythms MI Stroke
135
Stress and gastrointestinal problems
Inflammatory bowel disease Irritable bowel syndrome
136
Stress and illness
Cancer: stress linked to survival rather than incidence Cardiovascular disease: high blood pressure, abnormal heart rhythms, MI and stroke Obesity & eating disorders Infertility, recurrent miscarriage & menstrual problems Rheumatoid arthritis Skin & hair problems eg acne, psoriasis, eczema Gastrointestinal problems: inflammatory bowel disease, irritable bowel syndrome. Medically unexplained symptoms (MUS) Infectious diseases especially covid-19
137
Stress and skin + hair problems
Acne Psoriasis Eczema
138
Post traumatic stress disorder
Vivid flashbacks & nightmares Intrusive thoughts and images Sweating Nausea Trembling Hypervigilance & increased startle response Agoraphobia Insomnia Irritability Impaired concentration
139
Stress management
Shiatsu, T'ai Chi, Yoga Mindfulness Meditation Exercise Sleep hygiene Friends and family Healthy diet Exposure to natural environments Aromatherapy Cognitive Behavioural Therapy
140
6 reasons why natural selection left us vulnerable to disease
Mismatch Infection Constraints Trade-offs Reproduction Defensive responses
141
Routine health data
Collected, collated and disseminated on a regular basis
142
Health data
Data to describe population health status eg mortality or morbidity Data about health care Data on factors influencing health
143
Why collect routine health data
Monitor health of the population- descriptive epidemiology Generate hypotheses in causes of ill health —>further research —> possible prevention Inform planning of services and policy to meet health needs, including resource allocation Evaluate and assess performance of policies and services including quality and outcomes Generate research statistics to be included in summaries for research dissemination and in funding applications
144
Types of health information
Mortality Morbidity (diseases) Use and quality of health care Health status/ quality of life Individual lifestyle (health related behaviour) Wider determinants (socio-economic, cultural and environmental conditions) Population demographics
145
Mortality statistics
1. Doctor completes certificate of cause of death 2. ‘Informant’ takes certificate to local registrar and registers death 3. Copy of registration sent to ONS where causes of death are coded 4. ONS compile and publish mortality statistics
146
Cause of death recording
Underlying cause of death according to WHO: A. Disease or injury that initiated the train of events directly leading to death, or B. The circumstances of the accident or violence that produced the fatal injury
147
Data quality - CART
Completeness Accuracy Relevance and/or representativeness Timeliness
148
Health information - morbidity
State of being diseased Degree of severity of disease Incidence of disease Prevalence of disease
149
Incidence
Number of new cases in a particular population during a particular time interval
150
Prevalence
Total number of cases in a particular population at a particular point in time
151
Incidence rate
Number of new cases/ population at risk
152
Point prevalence
Number of cases at a point in time/ total population
153
Health benefits of green space
Improved relaxation and restoration Improved social capital Improved functioning of the immune system Enhanced physical activity, improved fitness and reduced obesity Anthropogenic noise buffering and production of natural sounds Reduced exposure to air pollution Reduction of the urban heat island effect Enhanced pro-environmental behaviour Optimised exposure to sunlight and improved sleep
154
Mitigation of harm- urban green
Reduce air pollution Noise reduction Temperature regulation
155
Conducive to the restoration of depleted capacities - urban green space
Reduction of stress Increases in positive emotions Facilitation of recovery from attentional fatigue
156
Mechanisms by which green space benefits health and well-being
Mitigation of harm Restoration of depleted capacities Building new capacities Microbial diversity
157
Biological symptoms of depression
Poor sleep Poor appetite Reduced libido Poor concentration
158
What is depression
Low mood Anhedonia Low energy Neurodegenerative disease of impaired plasticity
159
Cognitive symptoms of depression
Worthlessness (poor self esteem) Guilt Hopelessness Suicidal thoughts
160
HPA axis and depression
Increased corticotropin releasing hormone Enlarged adrenals and pituitary Reduced negative feedback Reduced glucocorticoid receptor expression in the brain
161
HPA axis
Hypothalamus —> corticotropin releasing hormone Anterior pituitary—> adrenocorticotropic hormone Adrenal cortex —> cortisol Negative feedback loop = cortisol inhibits release of other 2 hormones
162
History of childhood maltreatment
Increased adrenocorticotropic hormone release in response to stress
163
Effect of cortisol (stress) on the brain
Neurotoxic Causes neuro-vulnerability Affects dendrite formation Reduces neurogenesis Causes changes to the EEG Particularly affects frontal lobes and hippocampus
164
Medial pre-frontal cortex
Evaluating emotional state Social cognition
165
Dorsolateral prefrontal cortex
Working memory Problem solving
166
Which part of the frontal lobe has a larger volume loss in depression
Dorsolateral prefrontal cortex > medial prefrontal cortex
167
Hippocampus
Important for memory
168
Effect of depression on hippocampus
Reduced size - up to 20% volume loss Dose related effect- correlates with number of and length of previous episodes Associates with learning based cognitive deficits Much of the volume loss is irreversible
169
Neurogenesis
Grow axons and dendrites and integrate into existing networks
170
Stress and neurogenesis
Down regulates Restraint and shock stress causes reduced neurogenesis - particularly when learned helplessness is induced ‘Social dominance stress’ reduces the number of surviving new cells (same rate)
171
Stress and dendrites
Mediated by reduced neurotrophins eg brain derived neurotrophic factor
172
Brain derived neurotrophic factor
Stress decreases BDNF Low BDNF in unmedicated depressives
173
How do antidepressants work
Increase glucocorticoid receptor expression (regulating HPA activity) Increase neurogenesis Increase BDNF synthesis- improve connectivity and increase number of synapses Affect gene expression
174
Monoamines in the brain
Serotonin Noradrenaline Dopamine
175
What can lead to depression
Acute stress Previous trauma eg early adversity and parenting
176
MDD
Major depressive disorder
177
Function of the default mode network
Daydreaming, internal ‘flow’ of consciousness- resting state Automatically details- self’s place in time and space, projecting to other places in time and space Self reference- referring to traits or states, emotional and moral reasoning Thinking about others- theory of mind, social judgements/evaluations
178
Default mode network in depression
Depressed people find it hard to appropriately switch off their DMN in response to a task - excessive rumination
179
Entropy
Measure of disorder/chaos
180
How does the brain attempt to reduce entropy
Top-down processing- makes predictions to reduce surprises Initially visual predictions and other basic sensory functions Eventually words, concepts and core beliefs
181
Functional MRI scans
Based on oxygen or glucose take up Functional connectivity- spatially distinct areas of the brain showing similar activity at similar times
182
Functional connectivity
Spatially distinct areas of the brain showing similar activity at similar times Allows the study of networks
183
Default mode network contains
Medial prefrontal cortex Precuneus including the hippocampus
184
Acute psychedelic state
Reduced activity in the default mode network- metabolism and functional connectivity Reduced alpha power in PCC
185
Ego dissolution
Correlated with reduction in default mode network “Inexperienced a decrease in my sense of self-importance”
186
High entropy- high disorder, flexible states
Psychedelic state Infant consciousness REM sleep/dreaming Early psychosis Sensory deprivation Near death experience Magical thinking Dreamy state of temporal lobe epilepsy Divergent- thinking/creativity
187
Low entropy- low disorder, rigid states
Come Anaesthesia Sedation Deep sleep Seizure Depression OCD Addiction Rigid/narrow thinking
188
Mindfulness meditation
Short (8 week) course of daily mindfulness practice reduces activity in the default mode network And treats and prevents depression Focus on breath- increasing attention and being more aware of one’s own mind
189
Depression is
A disease of reduced plasticity- reduced connectivity at cellular level A disease of increased self-referential thinking- reduced connectivity at the interpersonal level
190
Social rank theory
After a prolonged fight for dominance there is a role for submission
191
Social risk theory
Sensitivity to social risk Inhibition of confident behaviour ‘Cry for help’
192
Depressogenic modern society
Over-emphasis on the self and one’s ‘rank’ Self-referential ruminations Fear of social threat
193
5 pillars of wellbeing
Physical activity Connect with others Learn something new Practice mindfulness Acts of generosity
194
Some psychiatric diagnoses are associated with issues of either ‘over-control’ or ‘under-control’. Which of the following behaviours would be typical of an individual with ‘over-control’ traits?
Good at delayed gratification