Grip formation as an emergent property. Response To commentaries on "A new view on grasping"

Smeets1, Brenner

  • 1Vakgroep Fysiologie, Eramus Universiteit Rotterdam, Postbus 1738, 3000 DR Rotterdam, The Netherlands.

Motor Control
|July 20, 1999
PubMed

Related Concept Videos

Hand Control During Infancy and Toddlerhood01:31

Hand Control During Infancy and Toddlerhood

Hand movements during infancy and toddlerhood develop from broad, relatively uncontrolled actions into increasingly precise fine motor skills. This progression depends on nervous system maturation, improved muscle control, and repeated interaction with objects. Early reflexive movements gradually give way to intentional reaching, grasping, object manipulation, and tool use.Early Grasping SkillsNewborns show a strong palmar grasp reflex, automatically closing their fingers when the palm is...
Responses to Gravity and Touch02:26

Responses to Gravity and Touch

Gravitropism: Plant Responses to Gravity
Gestures During Infancy and Toddlerhood01:29

Gestures During Infancy and Toddlerhood

Gestures are nonverbal movements of the hands, arms, or face that allow infants and toddlers to communicate emotions, needs, and intentions before speech develops. Gesture use generally appears before spoken language and decreases as vocabulary expands. For example, an 11-month-old may raise their arms to request being picked up, whereas an 18-month-old may say “up.”Types of GesturesChildren mainly use deictic and representational gestures. Deictic gestures emerge around six months and include...
Formation of Higher-order Actin Filaments01:11

Formation of Higher-order Actin Filaments

The polymerization of G-actin monomers into filamentous F-actin is a multi-step process. Once the F-actins are formed, they can bundle together in different arrangements to form higher-order networks and regulate cellular functions. Common examples include the formation of lamellipodia and filopodia at the cell's leading edge by actin reorganization in a migrating cell. The microvilli on the brush border epithelial cells are also formed through the F-actin network.
The high-order actin networks...
Early Reflexes During Infancy01:26

Early Reflexes During Infancy

Early reflexes are automatic, involuntary responses to specific stimuli and provide information about neurological development during infancy. Some reflexes are present at birth or appear soon afterward. Known as primitive reflexes, they support early survival and adaptation.Primitive ReflexesPrimitive reflexes help newborns respond to their environment before voluntary motor control develops. The rooting reflex causes an infant to turn toward stimulation near the mouth, helping the infant...
Development of Head Control During Infancy01:05

Development of Head Control During Infancy

The control of head posture and movement is an important early milestone in motor development. During the first four months of life, infants gradually learn to stabilize and move their heads against gravity. Head control depends on the gradual strengthening and coordination of the neck, shoulder, and upper trunk muscles.Early Head MovementsAt birth, infants have limited control over their heads because their neck muscles are still weak. While lying on their backs, newborns can usually turn...