To investigate the effect on young children's coding of spatial information, an array of boxes was varied in number, size, and arrangement and was shown to 20 toddlers. Only the number of boxes defining the left and right sides of the array influenced performance; that is, multiple boxes were associated with the use of external objects as spatial…

The acquisition of productive intraverbal behavior involving the emission of thematically related responses was evaluated with three mentally retarded children (13-16 years old). Training was conducted using an errorless discrimination procedure (prompt delay) and a variation to transfer vocal responses from control of visual stimuli (tact…

Examines discrimination of geometric shapes by three-month-old infants who were presented with geometric stimuli moving laterally at two different velocities. Finds that subjects discriminate between geometric forms at velocities that, according to previous findings, might interfere with shape discrimination. Discusses the possible interactive…

The constant task condition in which only trials on the target task were presented during each session led to faster response acquisition by two of four autistic children (9-10 years old) than the varied task methods in which trials for three nontarget tasks were interspersed with trials for the target task. (CL)

Mean number of spontaneous fluctuations in skin conductance did not differentiate the groups. The 35 autistic children, compared with controls, were significantly more often nonresponsive to the first trial. When responding, autistic children showed electrodermal orienting responses characterized by large amplitudes and fast recovery. (Author/CL)

Children aged five to nine made judgments about the sizes o f geometric figures at three distances. (ST)

The "child's eye view' of my earlier paper referred to judgments made by preschoolers; Harris and Schaller studied only schoolchildren, whose responses to some figures as letters would be anticipated by my results. I question their claim that their procedures changed the apparent nature of orientation judgments. (Author)

Investigates the effectiveness of non-speech auditory stimuli in eliciting transformations analogous to those reported for speech stimuli to determine if a non-verbal analogue to the verbal transformation effect exists. (DD)

Pictures definitely seem to help training, but a study for the military finds these pictures need not be in moving form, such as films or videotape. Just how the pictorial techniques should be employed and with how much success depends on individual trainee and program differences. (KP)

Galvanic skin responses of 160 mentally retarded and 160 nonretarded adults from a prior study were reanalyzed in terms of separate frequency and amplitude measures. (Author)