Looking preferences to visual temporal frequencies were examined in 77 infants at 3 ages (newborn, 1 month, and 4 months) in 3 conditions: less aroused (after feeding), more aroused-internal (before feeding), and more aroused-external (after feeding with 8 Hertz visual stimulation). Found that infants preferred faster stimuli when less aroused and…

A class of multinomial models for source monitoring is developed and evaluated. These models are capable of taking data from source-monitoring models and separately measuring the cognitive capacities that underlie such data. Usefulness of the models is demonstrated with published data from areas of reality monitoring and bilingual memory. (SLD)

Results of 3 experiments indicated that 12 month olds, but not 8 and 10 month olds, looked longer at objects of a different shape from test objects than at the test objects. Twelve month olds recognized rectilinear, but not curvilinear, forms. They recognized differences in forms for three-dimensional, but not two-dimensional, objects. (BC)

Seven experiments with a total of 480 subjects indicated that subjects visually imaging classical ambiguous figures have difficulty reconstructing the images, and that their construal of the image strongly influences what is depicted within the image. Image content, rather than image inspection, appears to be selective. (SLD)

Groups of 10 and 15 year olds were shown a capital letter visual stimulus followed by a masking grid pattern. Sensory transmission time was the same in both groups. Older children showed a greater rate of information accrual and a greater amount of information extraction than did members of the younger group. (BC)

The most important changes that have taken place in behaviorism since John B. Watson's 1913 article are the introduction of the intervening variable approach and the understanding that psychology is both an experimental and a psychometric science. The only observables available to psychology are stimuli and response. (SLD)

The law of comparative judgment is described, and applications in the measurement of psychological values are reviewed. The law defines the psychological continuum and expresses the experimentally observed proportion of judgments as a function of scale values of stimuli, their respective discriminal dispersions, and the correlation between paired…

An attempt to replicate the results with averaged evoked potentials (AEPs) of D. E. Hendrickson and A. E Hendrickson (1982) with 40 adults confirms a negative correlation between AEP variability and IQ. The Hendrickson paradigm is seen as no more than a well-controlled auditory evoked potential. (SLD)

Compares probabilistic models of same-different and identification judgments concerning their sensitivity to perceptual dependence or the degree to which underlying psychological dimensions are correlated. Results support a perceptual independence assumption when using these models and pertain to studies of different decision rules used at…

Three experiments with 29 college students and 8 members of a university community demonstrate that shape recognition processes influence perceived figure-ground relationships in 3-dimensional displays when the edge between 2 potential figural regions is both a luminance contrast edge and a disparity edge. Implications for shape recognition and…

Uses a nonsimultaneous pulsation threshold technique to examine the development of frequency resolutions in infants of three to six months. (PCB)

Four experiments examined exogenous orienting in 3.5-month-olds. Found that sensitivity to a small moving bar was lower when most of the red bars were in the visual field contra-lateral to this probe. The distribution of color within the visual field biased attention, making it either more or less likely that the infant detected a moving stimulus.…

Three studies examined the role of ontological and syntactic information in children's learning of words for physical entities, such as objects and substances. Results reveal a strong and changing developmental interaction for the use of ontologically relevant perceptual information, labels, and syntax. (Author/VWL)

Investigated the effects of of distance on perception of unimodal visual speech and congruent and incongruent forms of the syllables /ba/, /bi/, /ga/, and /gi/. Identification of unimodal visual speech was unaffected by increasing distance to 10m, but was impaired at 20 and 30m. (Author/VWL)

Three studies analyzed stimulus feedback and the concept of control with three children and two adults having autism. The first study explored feedback from spinning tops, while the second and third emphasized control of various stimuli including spinning tops. Results indicate that autistic individuals' common interest in spinning tops is…