Categories are fundamental to everyday life and the ability to learn new categories is relevant across the lifespan. Categories are ubiquitous across modalities, supporting complex processes such as object recognition and speech perception. Prior work has proposed that different categories may engage learning systems with unique developmental…

Individuals regularly experience fluctuations in the ability to perform cognitive operations. Although previous research has focused on predicting cognitive flexibility from persistent individual traits, as well as from spontaneous fluctuations in neural activity, the role of learning in shaping preparatory attentional control remains poorly…

This study examined the use of visual feedback (VF) by typists at various skill levels. Subjects performed typing trials under four conditions: unrestricted VF, VF for response confirmation, VF for response guidance, and restricted VF. Results suggest similar use of visual feedback by typists of different skill levels. (Author/SJL)

Two-letter stimulus displays, differing in the magnitude of the horizontal spatial separation between the letters, were presented tachistoscopically to 10 retarded and 1 nonretarded adults. (Author/CL)

A comparison was made between two procedures for testing whether an alpha-numeric character, which was pattern masked to prevent awareness, could access higher-order information concerning its category. (Author)

The authors investigated how human adults encode and remember parts of multielement scenes composed of recursively embedded visual shape combinations. The authors found that shape combinations that are parts of larger configurations are less well remembered than shape combinations of the same kind that are not embedded. Combined with basic…

Visualized braille was presented on closed circuit television (CCTV) to six blind tactile braille reading subjects (ages 12-50). Results supported cross-modal transfer of learning from tactile to visual modality. After intensive visual training, these subjects could discriminate visual forms and read ordinary print using the CCTV. (Author/BS)