Compared mothers' play with infants with Down syndrome (DSC) and typically developing children (TDC) matched for mental or chronological age. Found that TDC mothers exhibited more object demonstrations with their developmentally younger children, who showed less object play. DSC mothers were more directive and supportive than mothers of younger…

Compared the impact of a small box emitting sounds in response to nearby motion introduced into an infant/toddler and a preschool classroom to illustrate qualitative differences in how children of different ages recognize the same objects as mediating devices for activity. Found that the box became a social object for infants/toddlers and part of…

This study was designed to examine the relationship between conceptions of ability and understandings of the meaning of effort. Participants practiced a novel task and completed an ability conceptions questionnaire prior to instruction and a meaning of effort survey after practicing the task. The majority of participants believed in the efficacy…

The distribution of intermanual discrepancies on three motor tests (Grooved Pegboard, Finger Tapping and Dynamometer) were examined in normal and unilateral brain lesion samples. Considerable variability in the intermanual discrepancies was observed in all three samples. Therefore, the consistency of discrepancies across tasks was examined. The…

Research on object exploration by infants addresses milestones in the process by normally developing infants, including spontaneous manipulation strategies. Implications for developmentalists working with high-risk preterm infants are noted, including the need for direct assistance in manipulation and for selection of materials. (CL)

The effectiveness of sound as a reinforcer of manipulative responses was studied with 50 infants four to 12 months old. Noisy toys were manipulated significantly more frequently than quiet ones by infants from six to 10 months old. (Author/SEW)

Sighted subjects assembled puzzles under separate conditions of visual-haptic perception and used vision and touch simultaneously to illustrate visual-type involvement and links in haptic encoding processes. A cognitive component in perceptions was found. When visual input was inadequate or independent of haptic perception, tactual information was…

Details are presented regarding the essential elements of an effective early childhood physical education curriculum. Components include movement awareness, fundamental locomotor skills, fundamental nonlocomotor skills, fundamental manipulative skills, and health-related fitness. (CB)

Observed drawing by toddlers and preschoolers using primary and standard markers, pencils, and crayons to determine the influence of implement diameter on children's drawing products, performances, and preferences. The relationship between drawing and early home manipulative experience was also investigated. Confirmed findings of previous studies…

The conceptual categories that children have developed in their second year were studied in five experiments using object manipulation tasks. Subjects included 152 children from 18 to 31 months of age. These very young children had formed global conceptions of many domains of objects. (SLD)

Two experiments used object-manipulation tasks to examine whether one- to two-year-olds form superordinate-like categories by attending to object parts. Findings indicated that 14- and 18-month-olds behaved systematically toward categories with different, but not matching, parts. Without part differences, none formed superordinate categories.…

Discusses the development of the human hand from birth to age three as it contributes to the formation of human personality. Considers how parallels in eye, hand, brain, and motor skill development portray the evolving complexity and adaptation of the human grasp and illustrate Montessori theories about the relationship between physical experience…

Two studies involving stereotypic hand gazing revealed that: (1) a dramatically increased therapy program substantially reduced a 35.4 month-old boy's hand gazing and augmented his toy manipulation skills; and (2) both glasses and toys effectively reduced hand gazing by two visually impaired 30.3 and 17.9 month-old children. (Author/CB)

Forty right-handed high school and college students were trained to operate calculators with their left hands. Results suggest the possibility of improving office machine operating speed, without significant loss of accuracy, by instructing trainees to operate the keyboard with the alternate hand while recording information with the dominant hand.…

Examines the issue of object sorting in early infancy. Forty-eight infants at 6, 9, and 12 months were presented with eight sets of small, manipulable objects. At six months, selective manipulation was absent; at nine months, 94 percent of the infants sequentially touched similar objects and at 12 months 100 percent did so. (Author/DB)