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Biomedical subjects

S A Rose

Publications and source records attributed to S A Rose.

44 records · Page 3Linked to original sources
PubMed1977

Cross-modal transfer in human infants.

This study investigated cross-modal transfer in infants by their proclivity to respond differentially to novel and familiar stimuli after familiarization in a different sensory modality. Across a variety of stimulus shapes, 1-year-old infants significantly and reliably looked more at and reached more for the novel than the familiar stimulus subsequent to information input from tactual stimulation. Furthermore, for the first time, it is demonstrated that not only do infants gain information about the shape of objects from their oral experience with them but this information can be made available to the visual modality.

Discrimination, Psychological↗
PubMedDate not supplied

Kinematic and kinetic evaluation of the ankle after lengthening of the gastrocnemius fascia in children with cerebral palsy.

The effect of surgical lengthening of the gastrocnemius fascia on ankle joint kinematics and kinetics during gait in patients with cerebral palsy (CP) was evaluated. Twenty independent ambulators (24 sides) were included in this retrospective study. The evaluation included clinical examination, calculation of joint kinematics and kinetics, and collection of surface electromyography (EMG) during gait. Postoperative improvements were noted in static heelcord range of motion (ROM), with an associated increase in dorsiflexion in stance and swing. Kinetic analysis showed a decrease in the abnormal energy generated around the ankle in midstance and a statistically significant increase in the energy generated in late stance for push-off.

Adolescent↗
PubMedDate not supplied

The relation of affect to attention and learning in infancy.

The relation of positive affect to attention and learning was examined in 5-, 7-, and 9-month-olds (N = 84). Affect and attention were assessed while the infants inspected a photograph. Affect was rated globally, for overall mood, and specifically, for amount of time smiling. Attention was indexed by the duration of the infant's longest (or peak) look, a measure previously linked to differential cognitive performance. At all ages, positive affect (shown by approximately half the infants) was associated with long look durations and slower learning, as assessed on a task in which infants learned to distinguish a familiar face from a series of novel faces. By contrast, neutral affect was associated with short looks and faster learning. Affect and look duration had synergistic effects, in that learning was faster than expected for infants who displayed both short looks and neutral affect. These findings are compatible with adult research that links positive affect to less analytical processing, and provide the first evidence that affect may be associated with the speed of processing differences implicated in short and long looking.

Affect↗
PubMedDate not supplied

Modifying the distribution of attention in infants.

In three experiments, the distribution and malleability of infant visual attention were studied in 5-month-olds (N = 72) while they inspected large geometric designs. In Experiment 1, we established that infants maintained their distribution of attention from a pretest to a familiarization phase. We also replicated and extended our previous findings that infants who examined targets with briefer, more numerous looks and shifts-short lookers-had novelty scores above chance, whereas long lookers demonstrated chance responding. In Experiment 2, different portions of the display were successively illuminated with red light. This manipulation induced long lookers to scan like short lookers during familiarization; they then showed novelty scores well above chance. A third experiment ruled out the simple presence of a red light as the source of this effect. In sum, then, these results suggest that the distribution of attention is malleable, and that a broader distribution of attention, as reflected in briefer and more numerous looks and shifts, can improve processing.

Attention↗
PubMedDate not supplied

Visual and auditory temporal processing, cross-modal transfer, and reading.

The present study reexamined the relevance of auditory and visual cross-modal matching to reading ability, an issue first addressed in a seminal study by Birch and Belmont (1964). By presenting all patterns to be matched as temporal sequences of tones and lights, including intramodal as well as cross-modal conditions, and covarying memory, three problems with the Birch and Belmont design were corrected. Results showed that poor readers had difficulty in perceiving temporal patterns generally: They did worse than good readers not only on cross-modal conditions but also on intramodal ones. These results were replicated in two tasks. Nonetheless, hierarchical regressions provided some indication that cross-modal abilities themselves are relevant to reading. For one of the two tasks, cross-modal performance contributed to the prediction of reading ability over and above intramodal performance. Poor readers also showed slower response times--a factor that contributed marginally to the prediction of reading independent of temporal processing.

Auditory Perception↗