Lecture 24 Flashcards

1
Q

What is personality in terms of human psychology?

A

Temperament relates to differences in emotionality, or inherited tendencies demonstrated in early life
* the foundation of personality

Personality relates to the ‘sense of self’ or personal character which develops over time

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2
Q

What is personality in terms of animal behaviour research?

A
  • Temperament has been used, largely because personality may suggest anthropomorphism
  • The relationship between personality and a ‘sense of self’ is debated in animals
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3
Q

What is personality?

A
  • Personality, temperament, coping styles, behavioural types: now agreed to be synonymous
  • Definition: “individual behavioural differences that are consistent over time and across situations.”
  • Influenced by genes & environment
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4
Q

What is state, trait, and type?

A

Increasing levels of complexity:

State
- Response to a given situation
- Eg. Afraid, excited, or curious - in the moment

Trait
- State observed in variety of situations
- Eg. Fearful, excitable, inquisitive - in general

Type
- Combination of traits that makes up an individual’s character

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5
Q

What are the types of combination of traits?

A
  • Extraversion, Neuroticism (how likely you are to experienceuncomfortable feelings)
  • Extrovert/Introvert
  • Calm/Fearful
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6
Q

Why consider temperament?

A

Temperament is an important selection criterion:
In companion species:
* Horse temperament affects use and quality as a riding horse
* Dog temperament used in service dog selection
In livestock species:
* Focus on traits related to production and management

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7
Q

What are some important temperament traits in pigs?

A
  • Sow line - low aggression, strong maternal traits
  • Boar line - low aggression, ease of handling, low stress
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8
Q

How Can we modify behaviour?

A

Genetic selection
* Behavioural traits are moderately heritable

Management - learned behaviours
* Use daily management to ‘train’ animals
* Eg. habituation, positive reinforcement to reduce fear, early socialization to reduce aggression

Combined approach of genetic selection and positive management is most productive

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9
Q

What do we need to know before selecting for behaviour traits?

A

Heritability of each trait
* can we expect genetic progress

Genetic variation
* how different are individual sows

Association between traits
* If we select against aggression, will we influence maternal behaviour

Can select individuals for sociability or suitability for a specific environment

need to be careful because we dont know the impacts oflow varibility (tasmanian devils are so imbred they get face tumors)

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10
Q

What is the importance of individual differences?

A

We manage the ‘average’ animal
* nutrition, temperature preference

In reality, we must accomodate the extremes
* the largest and smallest animals
* handling facilities, pen design
* fence height, distractions

In some cases the extremes refer to behavioural characteristics
* Flightiness, fearfulness
* Especially with farmed wild species - bison, deer, elk

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11
Q

What is the Myers-Briggs Type Indicator/DISC program

A

Model of temperament (personality)
* common tool in human resources (HR)
* management training: self-awareness, leadership

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12
Q

What does DISC stand for and what doe each mean?

A

Dominance
* Direct, results oriented, firm, strong-willed, forceful

Influence
* outgoing, enthusiastic, optimistic, high-spirited, lively

Steadiness
* even-tempered, accommodating, patient, humble, tactful

Conscientiousness
* analytical, reserved, percise, private, systematic

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13
Q

What is the Five Factor Model - ‘The Big Five’?

A
  • 5 dimensions in human psychology (OCEAN)
  • Similar traits found in animal research - esp. E&N
  • Openness, Conscientiousness, Extraversion, Agreeableness, Neurotocism
  • 4/5 commonly found in animal studies -
  • conscientiousness found in chimpanzees
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14
Q

What is the bold/shy continuum?

A

It refers to an individual’s reaction to risky situations with the boldest individuals taking the most risks and the shyest ones avoiding them

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15
Q

What is behavioural ecology?

A

explanation of temperament based on natural selection

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16
Q

What are the different types that succeed in different environments?

A
  • Predation pressure (shy if lots of predators)
  • Social competition (bold)
  • Resource distribution (bold if low resources)
  • Environment is always changing/in flux
  • Distribution of types changes over time
17
Q

What are some active and passive traits (coping styles - proactive/reactive)?

A

Active: aggression, territorial response
- Bold
- High responders
- Short attack latency
- Sympathetic tone - high testosterone, serotonergic tone
- Stable environment - dominant, inflexible

Passive: immobility and low levels of aggression
- Shy
- Low responders
- Long attack latency
- Parasympathetic - elevated cortisol baseline
- Changing environment - eg. migration, flexible

18
Q

What is the methodology for evaluating behaviour?

A
  • Cannot be measured directly
  • Requires multiple indirect measures
  • Patterns of behaviour/observational
  • Observer ratings: subjective scores
  • Behavioural Tests
19
Q

What are observer ratings?

A
  • Subjective assessment
  • eg. ‘Qualitative Behavioural Assessment’
  • Behavioural states are defined:
  • Tense, Afraid, Relaxed, Excited, Curious
  • Many independent observers - subjective scoring
  • Inter-observer reliability of scores is analyzed
  • Used in zoos and some farm animal welfare assessments - eg. EU ‘Welfare Quality’ System
20
Q

What are scales with predefined scores?

A
  • Subjective scores: observer ratings are based on a predefined system
  • Examples: lameness or exit speed in cattle
  • ‘Emotionality’ in horses - in a chute and on release
  • Categories assessed: escapetendencies, reactivity to people, behaviour after release, and overall emotionality
  • Each category: scored 1-4 forhighly nervous, nervous, normal or quiet
  • Inter-observer reliability determined
21
Q

Why are individual differences important?

A

Scientific and management reasons

  • Scientific data- highvariability but individual differences are not measured
  • identifying individual differences can reduce variation and improve our understanding
22
Q

What are the 2 categories of scientific errors?

A
  • Type 1 error - ‘false positive’ (find an effect but there is no actual effect)
  • Type 2 error - ‘false negative’ (find no effect but there actually is one) - with more variety you are more likely to get this

eg. if a treatment affects ‘type A’ animals differently from ‘type B’, but the difference is not considered. we will conclude no effect where one exists: Stoic animals