Explore how babies and toddlers build their first emotional connections... Show more
Comprehensive Psych 241 Chapter 6: Social and Emotional Development in Infants Notes











Attachment: Our First Bonds
Attachment is the powerful emotional bond that forms between infants and their caregivers. This connection is fundamental to development, with infants using behaviors like crying and smiling to maintain closeness with caregivers.
Researchers identify different attachment patterns by observing how babies respond when separated from and reunited with caregivers. Secure attachment, displayed by most U.S. infants, involves mild distress when caregivers leave but positive interactions during reunions. These babies typically grow into happier, more cooperative children who adjust better to peers in school.
Insecure attachment patterns include avoidant attachment (where infants show indifference to separations and reunions) and ambivalent-resistant attachment (where babies show extreme distress at separations and mixed reactions during reunions). Research suggests children with insecure attachment may develop more psychological issues as adolescents.
Did you know? Researchers measure attachment using the "Strange Situation" method, where they observe how infants react when separated from caregivers and exposed to an unfamiliar person.

Understanding Attachment Patterns
Ambivalent-resistant attachment involves babies showing extreme distress when mothers leave and contradictory behaviors upon reunion—like clinging while simultaneously pushing away. Another pattern, disorganized-disoriented attachment, involves confused behaviors like approaching a parent while looking away.
The quality of infant care strongly influences attachment patterns. Parents of securely attached babies tend to be affectionate, predictable, and responsive to their infant's needs. Interestingly, attachment patterns often show intergenerational transmission—secure mothers typically have secure children.
Fathers are becoming more involved in childcare than in the past, though they engage differently than mothers. While mothers typically handle more caregiving tasks and gentle play, fathers often engage in more physical, rough-and-tumble play. The more sensitive a father is to his child's needs, the stronger their attachment bond.
Remember this: Your attachment style isn't permanently fixed! When family circumstances improve, children can develop more secure attachments over time—even children who were neglected or adopted can form secure attachments with responsive caregivers.

How Attachment Develops
Attachment develops in predictable stages during an infant's first year. During the initial pre-attachment phase (birth to 3 months), babies show indiscriminate attachment, responding similarly to anyone who holds them. Next comes the attachment-in-the-making phase , when babies begin showing preferences for familiar people.
By 6-7 months, babies enter the clear-cut attachment phase, developing intense dependence on primary caregivers, usually mothers. This is when separation anxiety typically appears—babies protest when their primary caregiver leaves because they've developed a strong emotional bond.
While babies typically form their strongest attachment with one primary caregiver, they can and do form multiple attachments. Relationships with fathers, grandparents, daycare workers, and others all contribute to a baby's social-emotional development.
Learning insight: Attachment patterns tend to remain stable when parenting remains consistent, but can change when family circumstances improve. This shows how resilient children are when given proper care!

Theories of Attachment
Different theories explain why and how babies form attachments. The cognitive view suggests that babies must first develop object permanence (understanding that things exist when out of sight) around 6-7 months before forming specific attachments.
The behavioral view suggests attachment develops through conditioning—babies associate caregivers with having their needs met, making caregivers reinforcing. Psychoanalytic theorists like Freud believed the mother becomes a "love object" as she satisfies the baby's needs, while Erikson emphasized this period as crucial for developing trust.
The contact comfort view, based on Harlow's famous monkey experiments, suggests we have an inborn need for physical contact beyond just feeding. The ethological view proposes attachment behaviors are instinctual survival mechanisms, similar to imprinting in animals.
Influential researchers Ainsworth and Bowlby combined ethological insights with their observations, proposing that while attachment responses are innate in babies, caregiving behaviors are largely learned in humans rather than being purely instinctual.
Think about this: Unlike many animals, human attachment isn't just about survival—it provides the emotional foundation for all future relationships!

Social Deprivation: When Attachment Goes Wrong
What happens when babies don't receive the social interaction they need? Studies show severe consequences. The Harlows' famous experiments with monkeys demonstrated that infants raised in isolation later avoided other monkeys, wouldn't defend themselves, and as mothers, often abused or ignored their own babies.
Similar patterns appear in studies of institutionalized children. When babies receive only basic physical care without social interaction, they typically show withdrawal, depression, and developmental delays across all areas. In Spitz's research, institutionalized infants showed little interest in adults by 4 months, most engaged in self-stimulating behaviors like rocking, and none spoke by 12 months.
Remarkably, though, infants can recover from deprivation if placed in nurturing environments early enough. Studies by Kagan and Klein with Guatemalan children and Skeels' research with orphanage children showed dramatic improvements in development and IQ when deprived children received more attention and stimulation.
Hope for recovery: While early social interaction is crucial, research shows babies have amazing resilience. Even after significant deprivation, many can catch up developmentally when placed in nurturing environments.

Child Abuse and Neglect
Child maltreatment remains shockingly common. According to the U.S. Department of Health and Human Services, 9 out of 10 parents have engaged in some form of psychological or emotional abuse by the time a child is 2 years old. Over half have spanked or slapped their children, and a third have pushed, grabbed, or shoved them.
Research indicates about 41% of American children experience neglect or abuse from parents or caregivers annually. One in ten of these children suffers serious injury, and thousands die. Equally troubling, an estimated 50-60% of abuse cases go unreported.
Types of maltreatment include physical abuse (causing pain or injury), sexual abuse, emotional abuse (harming emotional development), and various forms of neglect (physical, emotional, and educational). Most injuries and deaths result from neglect rather than active abuse, and while girls experience more sexual abuse, boys make up about one-third of cases.
Warning sign awareness: Abuse often goes unreported because abusers may not recognize the line between discipline and abuse, or victims and witnesses fear consequences of reporting. Learning to recognize warning signs can help protect vulnerable children.

Effects and Causes of Child Abuse
Abused children face numerous challenges. They typically show higher rates of social problems and psychological disorders, weaker attachment to parents, and tend to be angrier and more aggressive. As they grow, they're more likely to engage in delinquent behavior, substance abuse, risky sexual activities, and unfortunately, may continue the cycle by harming their own children and partners.
Multiple factors contribute to child abuse. Stress from major life events (job loss, divorce, moving) is a significant factor. A parent's own history of being abused increases risk, as does lack of coping and child-rearing skills. Other risk factors include unrealistic expectations of children, substance abuse, and certain cultural factors.
Babies who are difficult to soothe or who cry frequently face higher risk of abuse. Professionals can help by strengthening parenting skills in the general population, providing resources for vulnerable families (especially poor, single, and teen parents), and offering support services like home visitation programs and abuse hotlines.
Breaking the cycle: Many states require helping professionals like psychologists and physicians to report suspected abuse. Some states legally require anyone who suspects abuse to report it—this mandatory reporting helps protect children who can't protect themselves.

Autism Spectrum Disorders
Autism Spectrum Disorders (ASDs) involve impairments in communication skills and social interaction, along with repetitive, stereotyped behaviors. These disorders typically become evident by age 3, sometimes as early as age 1. Recent research suggests that about 1 in 68 children have an ASD.
Several types of ASDs exist, including classic autism (characterized by extreme aloneness and communication problems), Asperger's disorder (social deficits without significant cognitive delays), Rett's disorder, and childhood disintegrative disorder (which involves loss of previously acquired skills after normal early development).
Autism appears 4-5 times more frequently in boys than girls. Children with autism typically show little interest in social interaction, often avoiding eye contact and physical affection. Their attachment to others is usually weak or absent, and they strongly prefer sameness and routine—even slight changes can cause extreme distress.
Understanding autism: Children with autism process the world differently. They often have unique communication patterns—about half develop functional language by adulthood, though their speech patterns remain atypical. Many engage in self-stimulating behaviors, and some may even harm themselves through behaviors like head banging or hair pulling.

Causes and Treatment of Autism
Despite some public misconceptions, scientific evidence has not established any connection between autism and vaccines or deficiencies in child-rearing. Research points to biological factors instead. Exposure to certain substances (lead, alcohol, mercury, misoprostol) and maternal rubella during pregnancy may increase risk, as can low birth weight and advanced maternal age.
The genetic component is significant—identical twins have about 60% concordance for autism compared to 10% in fraternal twins. Many children with autism show abnormal brain activity, including unusual sensitivity to neurotransmitters like dopamine and atypical activity in the cerebral cortex.
Treatment approaches focus on behavior modification to increase social engagement and develop new behaviors. Children with autism can learn to associate people with rewards rather than seeing them as objects. Studies show promising results from intensive behavioral therapy , with gains in intelligence and educational achievement.
Treatment controversy: While controversial, some severe self-harming behaviors have been reduced using brief aversive stimuli. Researchers continue investigating medication options, though no single treatment works for all individuals with autism.

Day Care: Effects on Development
About 24% of children in the U.S. receive center-based care like day care, nursery school, or preschool. Some studies suggest that extensive time in day care may influence children's attachment patterns, potentially leading to more insecure attachment. However, most research shows the majority of infants in both home care and day care develop secure attachments.
Day care exposure appears to make infants more peer-oriented and capable of higher developmental levels of play compared to home-reared children. While some studies suggest these children may become more aggressive toward peers and adults, they also typically show more positive social behaviors—sharing toys, independence, self-confidence, and cooperation.
High-quality day care correlates with improved academic performance in elementary school. Children in day care often score as well as or better than home-reared children on tests of cognitive skills. As with any research area, study limitations may influence findings, and quality of care matters tremendously.
Quality matters most: The debate isn't really about whether day care is "good" or "bad"—research shows that high-quality care (whether at home or in centers) produces the best outcomes for children. Look for warm, responsive caregivers and appropriate child-to-staff ratios.
We thought you’d never ask...
What is the Knowunity AI companion?
Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.
Where can I download the Knowunity app?
You can download the app in the Google Play Store and in the Apple App Store.
Is Knowunity really free of charge?
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
Similar Content
Most popular content in AP Psychology
9Most popular content
9Can't find what you're looking for? Explore other subjects.
Students love us — and so will you.
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Comprehensive Psych 241 Chapter 6: Social and Emotional Development in Infants Notes
Explore how babies and toddlers build their first emotional connections and develop socially! This summary covers attachment patterns, emotional development, and the earliest relationships that shape a child's sense of self and security during infancy.

Sign up to see the content. It's free!
- Access to all documents
- Improve your grades
- Join milions of students
Attachment: Our First Bonds
Attachment is the powerful emotional bond that forms between infants and their caregivers. This connection is fundamental to development, with infants using behaviors like crying and smiling to maintain closeness with caregivers.
Researchers identify different attachment patterns by observing how babies respond when separated from and reunited with caregivers. Secure attachment, displayed by most U.S. infants, involves mild distress when caregivers leave but positive interactions during reunions. These babies typically grow into happier, more cooperative children who adjust better to peers in school.
Insecure attachment patterns include avoidant attachment (where infants show indifference to separations and reunions) and ambivalent-resistant attachment (where babies show extreme distress at separations and mixed reactions during reunions). Research suggests children with insecure attachment may develop more psychological issues as adolescents.
Did you know? Researchers measure attachment using the "Strange Situation" method, where they observe how infants react when separated from caregivers and exposed to an unfamiliar person.

Sign up to see the content. It's free!
- Access to all documents
- Improve your grades
- Join milions of students
Understanding Attachment Patterns
Ambivalent-resistant attachment involves babies showing extreme distress when mothers leave and contradictory behaviors upon reunion—like clinging while simultaneously pushing away. Another pattern, disorganized-disoriented attachment, involves confused behaviors like approaching a parent while looking away.
The quality of infant care strongly influences attachment patterns. Parents of securely attached babies tend to be affectionate, predictable, and responsive to their infant's needs. Interestingly, attachment patterns often show intergenerational transmission—secure mothers typically have secure children.
Fathers are becoming more involved in childcare than in the past, though they engage differently than mothers. While mothers typically handle more caregiving tasks and gentle play, fathers often engage in more physical, rough-and-tumble play. The more sensitive a father is to his child's needs, the stronger their attachment bond.
Remember this: Your attachment style isn't permanently fixed! When family circumstances improve, children can develop more secure attachments over time—even children who were neglected or adopted can form secure attachments with responsive caregivers.

Sign up to see the content. It's free!
- Access to all documents
- Improve your grades
- Join milions of students
How Attachment Develops
Attachment develops in predictable stages during an infant's first year. During the initial pre-attachment phase (birth to 3 months), babies show indiscriminate attachment, responding similarly to anyone who holds them. Next comes the attachment-in-the-making phase , when babies begin showing preferences for familiar people.
By 6-7 months, babies enter the clear-cut attachment phase, developing intense dependence on primary caregivers, usually mothers. This is when separation anxiety typically appears—babies protest when their primary caregiver leaves because they've developed a strong emotional bond.
While babies typically form their strongest attachment with one primary caregiver, they can and do form multiple attachments. Relationships with fathers, grandparents, daycare workers, and others all contribute to a baby's social-emotional development.
Learning insight: Attachment patterns tend to remain stable when parenting remains consistent, but can change when family circumstances improve. This shows how resilient children are when given proper care!

Sign up to see the content. It's free!
- Access to all documents
- Improve your grades
- Join milions of students
Theories of Attachment
Different theories explain why and how babies form attachments. The cognitive view suggests that babies must first develop object permanence (understanding that things exist when out of sight) around 6-7 months before forming specific attachments.
The behavioral view suggests attachment develops through conditioning—babies associate caregivers with having their needs met, making caregivers reinforcing. Psychoanalytic theorists like Freud believed the mother becomes a "love object" as she satisfies the baby's needs, while Erikson emphasized this period as crucial for developing trust.
The contact comfort view, based on Harlow's famous monkey experiments, suggests we have an inborn need for physical contact beyond just feeding. The ethological view proposes attachment behaviors are instinctual survival mechanisms, similar to imprinting in animals.
Influential researchers Ainsworth and Bowlby combined ethological insights with their observations, proposing that while attachment responses are innate in babies, caregiving behaviors are largely learned in humans rather than being purely instinctual.
Think about this: Unlike many animals, human attachment isn't just about survival—it provides the emotional foundation for all future relationships!

Sign up to see the content. It's free!
- Access to all documents
- Improve your grades
- Join milions of students
Social Deprivation: When Attachment Goes Wrong
What happens when babies don't receive the social interaction they need? Studies show severe consequences. The Harlows' famous experiments with monkeys demonstrated that infants raised in isolation later avoided other monkeys, wouldn't defend themselves, and as mothers, often abused or ignored their own babies.
Similar patterns appear in studies of institutionalized children. When babies receive only basic physical care without social interaction, they typically show withdrawal, depression, and developmental delays across all areas. In Spitz's research, institutionalized infants showed little interest in adults by 4 months, most engaged in self-stimulating behaviors like rocking, and none spoke by 12 months.
Remarkably, though, infants can recover from deprivation if placed in nurturing environments early enough. Studies by Kagan and Klein with Guatemalan children and Skeels' research with orphanage children showed dramatic improvements in development and IQ when deprived children received more attention and stimulation.
Hope for recovery: While early social interaction is crucial, research shows babies have amazing resilience. Even after significant deprivation, many can catch up developmentally when placed in nurturing environments.

Sign up to see the content. It's free!
- Access to all documents
- Improve your grades
- Join milions of students
Child Abuse and Neglect
Child maltreatment remains shockingly common. According to the U.S. Department of Health and Human Services, 9 out of 10 parents have engaged in some form of psychological or emotional abuse by the time a child is 2 years old. Over half have spanked or slapped their children, and a third have pushed, grabbed, or shoved them.
Research indicates about 41% of American children experience neglect or abuse from parents or caregivers annually. One in ten of these children suffers serious injury, and thousands die. Equally troubling, an estimated 50-60% of abuse cases go unreported.
Types of maltreatment include physical abuse (causing pain or injury), sexual abuse, emotional abuse (harming emotional development), and various forms of neglect (physical, emotional, and educational). Most injuries and deaths result from neglect rather than active abuse, and while girls experience more sexual abuse, boys make up about one-third of cases.
Warning sign awareness: Abuse often goes unreported because abusers may not recognize the line between discipline and abuse, or victims and witnesses fear consequences of reporting. Learning to recognize warning signs can help protect vulnerable children.

Sign up to see the content. It's free!
- Access to all documents
- Improve your grades
- Join milions of students
Effects and Causes of Child Abuse
Abused children face numerous challenges. They typically show higher rates of social problems and psychological disorders, weaker attachment to parents, and tend to be angrier and more aggressive. As they grow, they're more likely to engage in delinquent behavior, substance abuse, risky sexual activities, and unfortunately, may continue the cycle by harming their own children and partners.
Multiple factors contribute to child abuse. Stress from major life events (job loss, divorce, moving) is a significant factor. A parent's own history of being abused increases risk, as does lack of coping and child-rearing skills. Other risk factors include unrealistic expectations of children, substance abuse, and certain cultural factors.
Babies who are difficult to soothe or who cry frequently face higher risk of abuse. Professionals can help by strengthening parenting skills in the general population, providing resources for vulnerable families (especially poor, single, and teen parents), and offering support services like home visitation programs and abuse hotlines.
Breaking the cycle: Many states require helping professionals like psychologists and physicians to report suspected abuse. Some states legally require anyone who suspects abuse to report it—this mandatory reporting helps protect children who can't protect themselves.

Sign up to see the content. It's free!
- Access to all documents
- Improve your grades
- Join milions of students
Autism Spectrum Disorders
Autism Spectrum Disorders (ASDs) involve impairments in communication skills and social interaction, along with repetitive, stereotyped behaviors. These disorders typically become evident by age 3, sometimes as early as age 1. Recent research suggests that about 1 in 68 children have an ASD.
Several types of ASDs exist, including classic autism (characterized by extreme aloneness and communication problems), Asperger's disorder (social deficits without significant cognitive delays), Rett's disorder, and childhood disintegrative disorder (which involves loss of previously acquired skills after normal early development).
Autism appears 4-5 times more frequently in boys than girls. Children with autism typically show little interest in social interaction, often avoiding eye contact and physical affection. Their attachment to others is usually weak or absent, and they strongly prefer sameness and routine—even slight changes can cause extreme distress.
Understanding autism: Children with autism process the world differently. They often have unique communication patterns—about half develop functional language by adulthood, though their speech patterns remain atypical. Many engage in self-stimulating behaviors, and some may even harm themselves through behaviors like head banging or hair pulling.

Sign up to see the content. It's free!
- Access to all documents
- Improve your grades
- Join milions of students
Causes and Treatment of Autism
Despite some public misconceptions, scientific evidence has not established any connection between autism and vaccines or deficiencies in child-rearing. Research points to biological factors instead. Exposure to certain substances (lead, alcohol, mercury, misoprostol) and maternal rubella during pregnancy may increase risk, as can low birth weight and advanced maternal age.
The genetic component is significant—identical twins have about 60% concordance for autism compared to 10% in fraternal twins. Many children with autism show abnormal brain activity, including unusual sensitivity to neurotransmitters like dopamine and atypical activity in the cerebral cortex.
Treatment approaches focus on behavior modification to increase social engagement and develop new behaviors. Children with autism can learn to associate people with rewards rather than seeing them as objects. Studies show promising results from intensive behavioral therapy , with gains in intelligence and educational achievement.
Treatment controversy: While controversial, some severe self-harming behaviors have been reduced using brief aversive stimuli. Researchers continue investigating medication options, though no single treatment works for all individuals with autism.

Sign up to see the content. It's free!
- Access to all documents
- Improve your grades
- Join milions of students
Day Care: Effects on Development
About 24% of children in the U.S. receive center-based care like day care, nursery school, or preschool. Some studies suggest that extensive time in day care may influence children's attachment patterns, potentially leading to more insecure attachment. However, most research shows the majority of infants in both home care and day care develop secure attachments.
Day care exposure appears to make infants more peer-oriented and capable of higher developmental levels of play compared to home-reared children. While some studies suggest these children may become more aggressive toward peers and adults, they also typically show more positive social behaviors—sharing toys, independence, self-confidence, and cooperation.
High-quality day care correlates with improved academic performance in elementary school. Children in day care often score as well as or better than home-reared children on tests of cognitive skills. As with any research area, study limitations may influence findings, and quality of care matters tremendously.
Quality matters most: The debate isn't really about whether day care is "good" or "bad"—research shows that high-quality care (whether at home or in centers) produces the best outcomes for children. Look for warm, responsive caregivers and appropriate child-to-staff ratios.
We thought you’d never ask...
What is the Knowunity AI companion?
Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.
Where can I download the Knowunity app?
You can download the app in the Google Play Store and in the Apple App Store.
Is Knowunity really free of charge?
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
Similar Content
Most popular content in AP Psychology
9Most popular content
9Can't find what you're looking for? Explore other subjects.
Students love us — and so will you.
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.