Chapter 5 Flashcards
Gestational Age
Age of the fetus or newborn, in weeks, from first day of mother’s last menstrual period
Normal Gestational Period
38 to 42 weeks
Gestational period is divided into ___ trimesters
three
Conceptual Age
age of fetus or newborn in weeks since conception
Prenatal Period
a. Responds first to tactile stimuli
b. Reflex Development
c. Innate tactile, proprioceptive, and vestibular reactions
Neonatal Period
a. Tactile, proprioceptive, and vestibular inputs are critical from birth onward for the eventual development of body scheme
b. Vestibular system, although fully developed at birth, continues to be refined and impacts on the infant’s arousal level
–Helps the infant to feel more organized and content
c. Visual system develops as infant responds to human faces and items of high contrast placed approximately 10 inches from face
d. Auditory system is immature at birth and develops as the infant orients to voices and other sounds
First Six Months
a. Vestibular, proprioceptive, and visual systems become more integrated and lay the foundation for postural control, which facilitates a steady visual field.
b. Tactile and proprioceptive systems continue to be refined, laying the foundation for development of somatosensory skills.
c. Visual and tactile systems become more integrated as the child reaches out and grasps objects, laying the foundation for eye-hand coordination.
d. Infant movement patterns progress from the reflexive to voluntary and goal directed.
Six to Twelve Months
a. Vestibular, visual, and somatosensory responses increase in quantity and quality as the infant becomes more mobile.
b. Tactile and proprioceptive perceptions become more refined, allowing for development of fine motor and motor planning skills
c. Tactile and proprioceptive responses also lead to midline skills and eventual crossing of midline
d. Auditory, tactile, and proprioceptive perceptions are heightened, allowing for development of sounds for the purpose of communication
e. Tactile, proprioceptive, gustatory, and olfactory perceptions are integrated, allowing for primitive self-feeding.
Thirteen to Twenty-Four Months
a. Tactile perception becomes more precise allowing for discrimination and localization to further refine fine motor skills
b. Further integration of all systems promotes complexity of motor planning as a toddlers repertoire of movement patterns expands
c. Symbolic gesturing and organization promote ideation, indicating the ability to conceptualize
d. Motor planning abilities contribute to self-concept as the toddler begins to master the environment
Two to Three Years
a. This is a period of refinement as to the stimulator, proprioceptive, and visual systems further develop, leading to improved balance and postural control
b. Further development of tactile discrimination and localization lead to improved fine motor skills
c. Motor planning and Praxis ideation also progress during this period
Three to Seven Years
a. Child is driven to challenge sensory motor competencies through roughhouse play, playground activities, games, sports, music, dancing, arts and crafts, household chores, and school tasks.
- These activities also provide opportunities to promote social development and self-esteem.
Rooting Reflex
Stimulus: stroke the corner of the mouth, upper lip, and lower lip
Response: movement of the tongue, mouth, and/or head during the stimulus
Functional Significance: helps the baby locate the feeding source to begin feeding
Onset Age: 28 weeks gestation
Integration Age: three months
Suck-Swallow Reflex
Stimulus: place examiners index finger inside infants mouth with head in midline
Response: strong, rhythmical sucking
Functional Significance: facilitates nutritive sucking for the ingestion of liquid
Onset Age: 28 weeks gestation
Integration Age: 2 to 5 months
Traction Reflex
Stimulus: grasp infants for arms and pull to sit
Response: complete flexion of upper extremities
Functional Significance: promotes momentary grasp to enable the child to hold onto Mother when being poured
Onset Age: 28 weeks gestation
Integration Age: 2 to 5 months
Moro Reflex
Stimulus: rapidly drop infants head backwards
Response:
-first phase: arm extension/abduction, hand opening
- second phase: arm flexion and adduction
Functional Significance: protective response to stress, helps develop extensor tone during a period when flexor tone is dominant
Onset Age: 28 weeks gestation
Integration Age: 4 to 6 months
Plantar Grasp Reflex
Stimulus: apply pressure with them on the inference ball of the foot
Response: toe flexion
Functional Significance: increases input to sole of foot; integration is associated with readiness for independent gait
Onset Age: 28 weeks gestation
Integration Age: nine months
Galant Reflex
Stimulus: hold and fat and prawns suspension, gently scratch or tap along side of the spine with finger, from shoulders to buttocks
Response: lateral trunk flexion and wrinkling of the skin on the stimulated side
Functional Significance: enhances trunk stabilization by facilitating lateral trunk movement
Onset Age: 32 weeks gestation
Integration Age: two months
Asymmetric Tonic Neck Reflex (ATNR)
Stimulus: fully rotate infants head and hold for five seconds
Response: extension of extremities on the face side, flexion of extremities on the skull side
Functional Significance: promotes visual attention to upper extremity; decreases incidents of rolling
Onset Age: 37 weeks gestation
Integration Age: 4 to 6 months
Palmar Grasp Reflex
Stimulus: place a finger in infant’s palm
Response: flinger flexion; reflexive grasp
Functional Significance: increases. palmar tactile input; prepares muscles for voluntary grasp
Onset Age: 37 weeks gestation
Integration Age: 4 to 6 months
Tonic Labyrinthine- Supine Reflex
Stimulus: place infant in supine
Response: increased extensor tone
Functional Significance: facilitates full-body extensor tone; allows posture to adapt to that of the head
Onset Age: > 37 weeks gestation
Integration Age: 6 months
Tonic Labyrinthine- Prone Reflex
Stimulus: place infant in prone
Response: increased flexor tone
Functional Significance: facilitates full-body flexor tone; allows posture to adapt to that of the head
Onset Age: > 37 weeks gestation
Integration Age: 6 months
Landau Reflex
Stimulus: hold infant in horizontal prone suspension
Response: complete extension of head, trunk, and extremities
Functional Significance: regulates tone; promotes prone extension to manage flexor tone
Onset Age: 3 to 4 months
Integration Age: 12 to 14 months
Symmetric Tonic Neck Reflex
Stimulus: place infant in the crawling position and extend the head
Response: flexion of hips and knees
Functional Significance: facilitates quadruped position in preparation for crawling; breaks up total-body extension
Onset Age: 4 to 6 months
Integration Age: 8 to 12 months
Neck Righting (on body) (NOB) Reflex
Stimulus: Place infant in supine and fully turn head to one side
Response: log rolling of the entire body to maintain alignment with the head
Functional Significance: facilitates rolling; maintains body orientation in response to cervical position changes
Onset Age: 4 to 6 months
Integration Age: 5 years