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Developing Difference

Developing Difference

Wendy Johnson

(2013)

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Book Details

Abstract

Why do we develop differently? Where does our individuality come from? What do we inherit from our genes, and how does that engage with our environment in influencing our behaviour?
Developing Difference is the first book of its kind to draw developmental and individual differences psychology together to investigate these fascinating questions.
Key features:
* draws on neuroscience and psychology to integrate the evolutionary, genetic, social and behavioural aspects of how we become who we are
* integrates the very latest genetic research
* considers the unanswered questions that still face differential and developmental psychologists
Developing Difference is essential reading for students studying developmental psychology and individual differences.

This is a long-needed textbook, integrating developmental and differential psychology in a concise yet comprehensive way. Engaging and accessible, Developing Difference accounts for the latest genetic research, and considers how evolution, genetics and human behaviour interconnect across the lifespan.


Wendy Johnson is Reader in Psychology at the University of Edinburgh, UK. Her research focuses on individual differences and development of mental abilities and personality, emphasising transactions between genetic and environmental influences.



"Dr. Johnson has produced a scientifically impeccable, clearly written discussion of the interaction between environmental and genetic effects over the life span. Anyone interested in development should read her work." – Earl Hunt, Professor Emeritus, University of Washington, USA

 

"Wendy Johnson is to be complimented on this excellent piece of work. It is the long-needed textbook that manages to integrate developmental and differential psychology in a concise, yet comprehensive, way." - Manuel Völkle, Researcher in Lifespan Psychology, Max Planck Institute for Human Development, Germany

 

"How do we develop into unique individuals? Wendy Johnson answers this deceptively simple question by weaving together the theories and research from many disciplines including genetics, human development, neuroscience, sociology, gerontology, and historical context. It is a fascinating overview of the many influences on human development. The text is clear and easy to follow, with new information even for experts in any of the fields that contribute to our understanding of how each of us develops differently." - Diane F. Halpern, McElwee Family Professor of Psychology, Claremont McKenna College, USA

Table of Contents

Section Title Page Action Price
Cover Cover
Half-Title i
Title iii
Copyright iv
Contents v
List of Figures x
Preface xi
Acknowledgements xiii
PART I KEY THEMES 1
1 The Importance of Individual Differences in Development 3
The two streams of scientific psychology 3
Causation and control 6
Psychology’s ‘two realms’ 7
The process of development 8
The legacy of the trait as the core concept in individual differences research 13
Integrating developmental and individual differences psychology 16
The importance of individual choice in development of individual differences 18
Why this book? 19
Organization of the book 22
2 Evolution 28
The origins and development of the theory of evolution 28
The theory of evolution itself 30
Evolution and genetics: the modern synthesis 31
Genetics, behaviour and ethology 33
Some lessons on natural selection from modern ethology 35
A long co-existing alternative perspective on evolution 38
A famous example of genetic adaptation to environment during development 39
William Hamilton and inclusive fitness 40
‘Outcomes’ of evolution 42
Specific aspects of selection that maintain genetic variation 44
Sexual selection 46
Sexual selection in action 48
Speciation 51
Coevolution 53
3 Brain Neuroanatomy and Genetics 56
Brain and body metabolics 56
Brain neuroanatomy and development 58
Adult brain structure and function 62
Regional communication within the brain 65
Developmental genetics: the homeobox 67
The role of the homeobox in brain development 69
Some basic genetics 71
Chromosomes and DNA 71
Heritability 75
The assumptions underlying heritability estimates and implications of their violation 77
Human genetic variation and identifying the effects of specific genes 81
4 Stress Response, Coping Capacity and Resilience 85
Just what is stress? 85
Functional and non-functional patterns of response to stress involving the HPA axis 86
Allostasis 90
Other physiological responses to stress 92
Attachment theory 94
Measuring attachment and testing the theory 96
The roles of stress and stress response in development 99
Temperament 100
Current conceptions of temperament dimensions and their biological markers 102
Integrating temperament, attachment and stress response 106
Implications for development 107
Testing stress reactivity, maternal responsiveness and attachment associations in rats 111
Testing stress reactivity, maternal responsiveness and attachment associations in monkeys 114
The differential susceptibility hypothesis and resilience 117
PART II LIFESPAN DEVELOPMENT 121
5 Gestation: The Developmental Foundation 123
Foetal development 123
Sexual differentiation during gestation 126
Organizational and activating effects of hormones in the brain 128
Physical sexual dimorphism v. prenatal differences in exposure to sex hormones 130
Theories of effects of hormones on cerebral organization 132
Theories of genetic influences on sexual differentiation 134
Prenatal programming, foetal origins theory and the Barker hypothesis 135
Prenatal effects of maternal emotion 136
Evidence of prenatal effects of maternal stress in nonhuman animals 138
Evolutionary explanations for prenatal programming effects 140
Prenatal learning 142
Risks to foetal development 146
Birth and perinatal complications 148
Individual differences and development during gestation 150
6 Infancy: Building a Brain 153
The primitive neonatal reflexes 153
Infant crying 155
Infant smiling 156
Measuring infant competencies 157
Developmental stages or continuous development 161
If there are stages, what changes from one to the next? 164
Brain development in infancy supporting the existence of stages 166
Imitation and mimicry 166
Mechanisms of imitation and mimicry: mirror neurons? 167
Object permanence and the ‘A-not-B error’ 171
Generalizing the guided reaching model to abilities considered cognitive 174
Emotional expression and the emergence of attachment 175
Emerging theories of emotional development in infants 177
Operationalization for empirical test 179
Development of individual differences in infancy 179
Randomness in development 183
7 Childhood: Emerging as a Person 185
Basic toddler skills 185
The role of culture in the development of individual agency 188
The process of skill development 190
Classical learning principles 192
Mindsets about ability 195
Operant conditioning in teaching 196
Motivation and interest 197
Experience producing drive theory 199
Testing and applying EPD Theory 204
Childhood in the context of EPD Theory 206
Adaptation to the school environment 207
Emerging as a person 211
8 Adolescence: Transition to Physical Adulthood 213
Biological v. social changes 214
Mechanisms of puberty 216
Emergence of sex dimorphisms 218
Individual age at puberty as facultative adaptation 219
Brain development during adolescence 226
Maintenance of goal-directed behaviour in adolescence 229
Emotion and incentive-driven behaviours in adolescence 232
Models to understand risk taking in adolescence 233
Gonadal hormones as links between brain and social development? 235
Associations between delinquency and timing of puberty in girls 237
Other associations with pubertal timing in girls 241
Associations with timing of puberty in boys 242
Epigenetic landscape and robustness 243
9 Young Adult Development: Finding a Place in the World 246
Erik Erikson and the stages of psychosocial development 247
The crisis of identity v. role confusion 249
Incorporating a sociological perspective in understanding development of identity 252
Gottfredson’s theory of the development of occupational identity 253
The role of parental social class in development of occupational aspirations 256
Identity formation and desire for marriage and family 257
The role of salience in understanding the psychological consequences of loosening occupational sex differences, and thus in understanding identity more generally 259
Salience of race in the development of occupational identity 262
Perspectives on racial identity beyond racial salience 264
Empirical studies of racial identity 269
Why all this? 272
Illustrating individuality of outcomes in empirical data 274
10 Adult Development: Balancing Work and Family 278
Early romantic attraction 279
Early romantic experiences 282
Adolescent sexual relationships and delinquency 283
Selection of sexual and romantic partners: evolutionary perspective 285
Other perspectives on mate selection 287
Cognitive and intuitive processes of mate selection 288
Pair-bonding 292
The transition to living in partnership 295
Consequences of mature pair-bonding 297
Current social challenges to the stability of the pair-bond: maintaining work–life balance 298
Parenthood and parenting 303
Adapting to parenthood in modern industrialized societies 305
11 Ageing and Longevity: Managing Decline 309
The social importance of understanding ageing 309
Physiological characteristics of ageing 311
Cognitive ageing 311
Well-being in older age 313
Research involving socioemotional selectivity theory 314
Relative stability of psychological characteristics in older age 317
Robustness 318
Robustness and ageing 323
Intra-individual variability in old age 324
Threats to robustness – managing stress 325
Theories of senescence 328
The role of menopause in human evolution 331
Managing senescence 333
Use it or lose it 337
12 Conclusion: Historical Context 339
The Flynn effect 340
Analogous trend of increasing height 343
Trends in longevity 344
And some contrasting historical cycles 346
How might these historical cycles relate to development of individual psychological differences? 349
Trends or cycles? 351
Individual differences v. developmental change 353
Addressing the challenges ahead 354
References 357
Index 393