Pattern separation and pattern completion in early childhood
Samantha S Cohen1, Chi T Ngo2, Ingrid R Olson1
1Department of Psychology and Neuroscience, Temple University, Philadelphia, PA 19122.
Summary
Children aged 4-7 years show improving pattern separation abilities, crucial for distinguishing similar memories. However, pattern completion, which retrieves memories as a unit, did not change and was unrelated to pattern separation in this age group.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Developmental Psychology
Background:
- Episodic memory relies on pattern separation (distinguishing similar experiences) and pattern completion (retrieving event patterns).
- These memory processes are sometimes viewed as a continuum and sometimes as independent.
- Understanding their relationship in developing memory systems is crucial.
Purpose of the Study:
- To investigate the relationship between pattern separation and pattern completion in children aged 4-7 years.
- To determine if these two memory processes develop in tandem or independently.
- To analyze their relationship at both a general and individual event level.
Main Methods:
- Assessed mnemonic discrimination as the behavioral signature of pattern separation.
- Measured holistic recollection as the behavioral signature of pattern completion.
- Examined these measures in children aged 4 to 7 years for memory of individual events.
Main Results:
- Mnemonic discrimination significantly improved with age in the studied children.
- Holistic recollection did not show significant changes across the 4-7 year age range.
- Pattern separation and pattern completion behaviors were found to be unrelated, even after controlling for age and analyzing individual events.
Conclusions:
- Pattern separation and pattern completion represent distinct developmental trajectories in early childhood.
- These two fundamental components of episodic memory appear to function independently during this developmental period.
- The findings challenge models that propose a direct continuum between pattern separation and pattern completion in young children.
Related Concept Videos
01:22Language Development
299
Children master language quickly and with relative ease, supported by both biological predisposition and reinforcement. B. F. Skinner (1957) proposed that language is learned through reinforcement, while Noam Chomsky (1965) argued that language acquisition mechanisms are biologically determined.
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...
299
01:14Piaget's Stage 1 of Cognitive Development
581
The sensorimotor stage, the initial phase of Jean Piaget's theory of cognitive development, spans the first two years of a child's life. During this period, infants actively engage with their surroundings, building cognitive awareness through direct interaction with the world. This interaction is primarily based on sensory perception and motor actions, allowing infants to gradually understand basic physical properties and predict how objects interact within their environment.
581
01:25Piaget's Theory of Cognitive Development from Childhood into Adulthood
60
Jean Piaget's theory of cognitive development emphasizes the role of thinking in a child's learning process, suggesting that children are naturally curious about their environment. His approach to development is discontinuous, proposing that cognitive abilities progress through distinct stages, each with unique characteristics. Central to Piaget's theory is schemata—mental structures that allow individuals to understand and interpret the world.
Schemata: Building Blocks of...
Schemata: Building Blocks of...
60
01:14Piaget's Stage 2 of Cognitive Development
32
The preoperational stage, the second of Jean Piaget's four stages of cognitive development, spans approximately ages 2 to 7 and is characterized by the emergence of symbolic thinking. During this stage, children use language, images, and symbols to represent objects and concepts, enabling them to engage in imaginative and pretend play. This symbolic thinking supports children's ability to perform make-believe actions, such as imagining a broom as a horse or their hand as a phone,...
32
01:19Role of Shaping in Operant Conditioning
245
Shaping is a technique used in operant conditioning to train complex behaviors by rewarding successive approximations toward the target behavior. This method is necessary because organisms are unlikely to perform complex behaviors spontaneously. Instead, shaping breaks down the desired behavior into small, manageable steps.
The steps involved in shaping begin with reinforcing any response that resembles the desired behavior. For example, parents might praise a child for picking up one toy. As...
The steps involved in shaping begin with reinforcing any response that resembles the desired behavior. For example, parents might praise a child for picking up one toy. As...
245
01:21The Nativist Approach
33
The nativist approach to infant cognitive development proposes that infants are born with inherent knowledge structures that allow them to interpret the world almost immediately. This perspective contrasts with earlier developmental theories, such as those proposed by Jean Piaget, which emphasized a more gradual acquisition of cognitive abilities through interaction with the environment. One key concept in this approach is object permanence — the understanding that objects continue to...
33