We recently reported that fear extinction, a form of inhibitory learning, is selectively blocked by systemic administration of L-type voltage-gated calcium channel (LVGCC) antagonists, including nifedipine, in mice. We here replicate this finding and examine three reduced contingency effects after vehicle or nifedipine (40 mg/kg) administration.…

The [delta] subunit of the GABA[subscript [Alpha]] receptor (GABA[subscript [Alpha]]R) is highly expressed in the dentate gyrus of the hippocampus. Genetic deletion of this subunit reduces synaptic and extrasynaptic inhibition and decreases sensitivity to neurosteroids. This paper examines the effect of these changes on hippocampus-dependent trace…

After training conditional discriminations among selected stimuli from two perceptual classes, the emergence of novel relations involving other members of both classes was assessed using cross-class probes. The cross-class probes were presented using one of four different testing schedules. In the 2/9 test, nine different probes were presented in…

This study examined the effects of Dolphin-Assisted Therapy (DAT) as a reinforcer for verbal operant production in children with Autism Spectrum Disorder. Three children who attended a dolphin therapy program participated in this single subject research study. Baseline data was collected for each child via a video tape provided by parents and…

General strain theory (GST) was tested as an explanation of violent and status offense delinquency of South Korean girls and boys. One research objective was to determine whether Korean girls and boys differed in their experience of each type of strain and in the levels of conditioning effects that might moderate the connections of strain to…

This military-developed text consists of three blocks of instructional materials for use by those studying to become refrigeration and air conditioning specialists. Covered in the individual course blocks are the following topics: refrigeration and trouble analysis, thermodynamics, and principles of refrigeration; major components and domestic and…

This plan of instruction, study guides, workbooks, and programmed texts for a secondary-postsecondary-level course in refrigeration and air conditioning are one of a number of military-developed curriculum packages selected for adaptation to vocational instruction and curriculum development in a civilian setting. It is the first section of a…

This research compares a behaviorally based approach for using electronic student response system (SRS) technology with a metacognitive-oriented approach to determine effects on attendance, preparation for class, and achievement. Also examined are the interaction effects of pedagogical approach with self-regulatory and motivational characteristics…

Provides an overview of the current methods of behavior modification, reviews some critical issues, such as fear of control, use of aversive control, and behavior modification in prisons, in an effort to aid in differentiating warranted from unwarranted concerns. Ethical standards and practices are discussed. (Author/AM)

Thirty college students and 30 moderately retarded persons averaging approximately equal age received eight alternating phases of acquisition and extinction trials with an electric pulse as the unconditioned stimulus for classical eyelid conditioning. (Author)

This study investigates the efficacy of symbolic modeling and role-playing therapy in the reduction of avoidance behaviors. After treatment, role-playing subjects demonstrated significantly less avoidance behavior and lower subjective fear ratings than the modeling or control group subjects. (Author/SJL)

The long-term treatment program and follow-up of a case of chronic, severe, multiple self-injurious behavior is presented. Contingent electric shock and differential reinforcement of other behavior were the primary techniques utilized. Total suppression was achieved in the laboratory setting, but extending control to the natural environment proved…

In a two part article the author first discusses the importance of fluency, rate, breathstream management, prosody, and self-confidence to the replacement of stuttering with normal speech; and second outlines specific clinical procedures for achieving these goals with adult and adolescent stutterers. (Author/LS)

Examined was the effect of operant-conditioning on the pica behavior (eating inedible substances) of a 14-year-old severely retarded institutionalized boy. (CL)

The effects and side effects of overcorrection for self-stimulatory behaviors of two children, who had been diagnosed as schizophrenic in a specialized day care program were evaluated. (Author)