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Biomedical subjects

J Rosser

Publications and source records attributed to J Rosser.

63 records · Page 4Linked to original sources

The development of auditory temporal acuity in children.

The development of auditory temporal acuity was studied in 56 children aged 6-12 years and compared with that of 8 adults. Acuity was measured by determining the minimum detectable duration of a brief cessation in a noise band with the 2-alternative forced-choice method. For detection of gaps in a broadband noise, acuity improved significantly with age and reached adult values by 11 years. The minimum detectable duration was significantly shorter at higher levels of the noise. For narrow-band noises, acuity also improved significantly with age and depended on the center frequency of the band. The improvement in temporal acuity with age was attributed to the development of sensory processes and not to age-related changes in nonsensory factors.

Adult↗

The laparoscopic retrieval of an orthopedic fixation pin from the liver with repair of an associated diaphragmatic laceration.

We report the successful removal of a shoulder fixation pin from the right lobe of the liver with intracorporeal repair of a diaphragmatic laceration. An expeditious workup and urgent operative intervention were required. We adhered to the principles of room setup, optical correctness, establishment of the triangle of success, appropriate instrument entry and convergence angles, two-handed surgical skills, and competence in intracorporeal suturing techniques that were all required for successful completion of the case. We also present a review of the significant literature.

Aged↗