Cognitive, Motor, and Social Development in the First Year of Life

Flashcards covering key developmental milestones, theoretical frameworks (Piaget), research paradigms, and socio-emotional transitions during the first year of life based on the lecture by Melinda Pohárnok.

Turning points

Universal, biologically based phases of development (bio-socio-psychological transitions) where changes across different areas hold to one direction and qualitatively reorganize the entire pattern of behavior into a new gestalt.

Critical period

A developmental window during which a key experience must occur; if it fails to take place, behavior is believed to be permanently affected (such as filial imprinting).

Sensitive period

A developmental timeframe where the failure of a key experience makes it difficult to redirect development along a typical trajectory, and function in the affected domain (e.g., language) may not fully recover.

The 'Golden hour'

The practice of administering all evidence-based interventions for term and preterm neonates within the initial $60$ minutes of postnatal life to achieve better long-term medical and physiological outcomes.

Maternal preoccupation and openness

An emotional state identified by Lothian (1999) characterized by heightened maternal responsiveness and receptivity occurring during both the final weeks of pregnancy and the first few weeks after birth.

Social smile

A smile emerging at $2\text{--}3$ months ($8\text{--}12$ weeks) that occurs in reaction to another's smile, conveys positive affection, and initiates a positive communicative cycle between infant and caregiver.

Newborn smile

An early neonatal smile that functions as a physiological reaction to pleasurable internal or external stimuli, rather than a social response to an adult.

Reflexive Stage

Jean Piaget's first sensorimotor substage ($0\text{--}2$ months or $0\text{--}1.5$ months) characterized by simple automatic reflex activities such as sucking and grasping.

Primary Circular Reactions

Piaget's second sensorimotor substage ($1.5\text{--}4$ or $2\text{--}4$ months) in which reflexive actions are repeated voluntarily and centered on the infant's own body (e.g., making fists, sucking fingers), helping differentiate 'me' from 'not-me' and establishing initial agency.

Secondary Circular Reactions

Piaget's third sensorimotor substage ($4\text{--}8$ months) characterized by the repetition of chance actions to reproduce interesting consequences in external objects or people, such as kicking to move an overhead crib mobile.

Coordination of Secondary Circular Reactions

Piaget's fourth sensorimotor substage ($8\text{--}12$ months) where responses combine into complex intentional sequences, infants separate means from ends by pushing aside obstacles to reach a target, and object permanence appears.

Tertiary Circular Reactions

Piaget's fifth sensorimotor substage ($12\text{--}18$ months) involving active experimentation and the discovery of novel ways to obtain a goal, such as pulling a pillow closer to retrieve a toy resting upon it.

Invention of New Means Through Mental Combination

Piaget's sixth sensorimotor substage ($18\text{--}24$ months) marked by an internal representational system, mental simulation of problem-solving sequences prior to acting, and deferred imitation.

Proximodistal direction

The general motor developmental principle stating that body parts closest to the center of the body come under motor control before parts located further out.

Cephalocaudal direction

The general motor developmental principle stating that physical control over the body develops in a head-to-foot sequence.

Object permanence

The cognitive understanding that objects continue to exist independently of an individual's direct perception or actions toward them.

A-not-B error

A cognitive limitation where an infant who has repeatedly retrieved an object from location A continues to search for it at location A even after watching it be hidden at location B.

Pragmatic misinterpretation

An explanation for the A-not-B error proposed by Topál et al. (2008), suggesting that an adult's ostensive-communicative cues lead the infant to interpret hiding at location A as generalizable knowledge rather than an isolated event.

Mobile conjugate reinforcement paradigm

A memory research method (Rovee-Collier, 1987) demonstrating that infants as young as $2\text{--}3$ months can associate foot kicks with mobile movements, retaining the memory for $3$ days at $2$ months and up to $21$ days at $6$ months.

Conceptual categorization

The developmental grouping of perceptually distinct items based on categorical similarity, advancing from perceptual prototypes ($3$ months: dogs vs. cats) to conceptual domains ($7$ months: animals vs. vehicles; $9$ months: birds vs. airplanes).

Protoimperative pointing

A form of referential pointing emerging between $6$ and $9$ months that functions to express an intention or request (e.g., 'Give it to me!').

Protodeclarative pointing

A form of referential pointing emerging between $6$ and $9$ months that functions to direct attention and share interest or affection regarding an object (e.g., 'How nice!').

Social referencing

The communicative process wherein infants monitor and use another person's emotional expressions to regulate their own behavior and evaluate unfamiliar or ambiguous situations.

Visual cliff experiment

An experimental apparatus and paradigm (Campos, Bertenthal, and Kermoian, 1992) used to test infant depth perception and reliance on parental emotional signaling via social referencing.

Stranger anxiety

A fear, caution, or shyness toward unfamiliar persons emerging around $7\text{--}9$ months, facilitated by the infant's expanding capacity to recall and differentiate familiar faces from unfamiliar ones.

Separation anxiety

An attachment-specific behavior emerging in the second half of the first year characterized by infant distress and protest when the primary caregiver leaves, followed by efforts to restore contact.

Violation-of-expectation car study

An experimental paradigm (Baillargeon & DeVos, 1991) demonstrating that $3.5\text{--}6.5$-month-old infants understand early object permanence by exhibiting surprise when a car rolls through a track seemingly obstructed by a box hidden behind a screen.