This petition is about two of the traditional three R's - reading, writing, and arithmetic; it concerns learning letter formation and learning to read, both of which require continuous interplay between the different perceptual attunements of central and paracentral areas of the retina. This interplay, managing the field of view between zooming-in…

Replies to comments mad by Howe et al. on the current author's original article. The double-anchoring theory of lightness (P. Bressan, 2006b) assumes that any given region belongs to a set of frameworks, created by Gestalt grouping principles, and receives a provisional lightness within each of them; the region's final lightness is a weighted…

Disfunctions are drawn between visual perception and visual function, and four optometrists respond with further analysis of the visual perception-visual function controversy and its implications for children with learning problems. (CL)

Some cautions regarding the early educational uses of optical aids with visually impaired children are suggested, based on widely held assumptions and recent findings in the fields of perception and reading. The change from the sight conservation era to one advocating the maximum use of remaining vision is traced. (Author/SW)

The interview with G. N. Getman, a developmental optometrist specializing in learning problems and disabilities, focuses on vision's impact on learning, the role of the vision specialist in the remediation of learning problems and disabilities, early screening programs, and visual training programs. (DLS)

This paper questions whether affordances are allied exclusively to dorsal stream processing within the visual system, or whether in fact different affordances are subserved by functionally independent neural pathways. Using case study evidence from patients with various visual pathologies, I argue that affordances can be categorised into type…

Art teachers should be familiar with psychologist's research on human vision and perception. Research by Julian Hochberg, James Gibson, and Gestaltists is summarized. (SR)

Offers three reasons as to why some children encounter difficulty with educational activities involving vision: (1) inability to perceive and hold detail in mind, (2) lack of time given to accomplish task, and (3) introducing too many activities at one time. (MG)

The author contends that, while visual defects should not be confused with defects in visual perception, the identification and treatment of visual problems is an important element in the diagnosis and remediation of learning disabilities. (Author)

This paper offers a model of visual functioning focusing on three factors: (1) visual capacity, (2) visual processing, and (3) visual attention. Practical implications of visual therapy are considered, and intervention strategies with children with impaired visual functioning are suggested. (Author/DB)

The article proposes helping visually handicapped clients make optimal use of remaining vision for travel in unmodified environments. Structured discovery learning exercises covering pattern recognition, depth perception, central acuity, and central field vision with peripheral field loss are offered. (Author/DB)

Discusses reading specialists' responsibilities concerning children's vision problems. (MKM)