Now showing items 1-20 of 164

    • Amphetamine-induced c-fos mRNA expression is altered in rats with neonatal ventral hippocampal damage 

      Lillrank, Sonja M.; Lipska, Barbara K.; Bachus, Susan E.; Wood, Graham K.; Weinberger, Daniel R. (National Institute of Health, 1996-08)
      To further characterize the mechanisms underlying enhanced dopamine-related behaviors expressed during adulthood in rats with neonatal excitotoxic ventral hippocampal (VH) damage, we studied the expression of c-fos mRNA ...
    • An evaluation of methylphenidate as a potential establishing operation for some common classroom reinforcers 

      Northup, John; Fusilier, Iantha; Swanson, Victoria; Roane, Henry; Borrero, John (Wiley Online Library, 1997-11)
      We conducted reinforcer assessments for 3 boys with a diagnosis of attention deficit hyperactivity disorder who alternately received either placebo or previously prescribed methylphenidate. Our purpose was to evaluate ...
    • Abnormal cholecystokinin mRNA levels in entorhinal cortex of schizophrenics 

      Bachus, Susan E.; Hyde, Thomas M.; Herman, Mary M.; Egan, Michael F.; Kleinman, Joel E. (Elsevier, 1998-01-05)
      Limbic cortical regions, including anterior cingulate cortex (ACC), prefrontal cortex (PFC) and entorhinal cortex (ERC), have been implicated in the neuropathology of schizophrenia. Glutamate projection neurons connect ...
    • Effects of prefrontal cortical lesions on neuropeptide and dopamine receptor gene expression in the striatum-accumbens complex 

      Baca, Serapio M.; Lipska, Barbara K.; Egan, Michael F.; Bachus, Susan E.; Ferguson, Jennifer N.; Hyde, Thomas M. (Elsevier, 1998-06-25)
      In the rat, neurochemical, behavioral, and anatomical investigations suggest that medial prefrontal cortical input modulates the activity of the basal ganglia. To understand how prefrontal dysfunction might alter ...
    • Progress In Learning: A Review Of Catania's 4th Edition 

      Mace, F. Charles; Borrero, John C.; Connell, James E.; Connelly, Melissa; Delaney, Beth A.; McLaughlin-Cheng, Elissa; Nocera, Rocco L.; Progar, Patrick R.; Ringdahl, Joel E.; Sierp, Barbara J.; Yoon, Jin Ho (Wiley Online Library, 1998-12)
    • Competition between positive and negative reinforcement in the treatment of escape behavior 

      Lalli, Joseph S.; Vollmer, Timothy R.; Progar, Patrick R.; Wright, Carrie; Borrero, John; Daniel, Dency; Barthold, Christine Hoffner; Tocco, Kathy; May, William (Wiley Online Library, 1999-08)
      We compared the effects of reinforcing compliance with either positive reinforcement (edible items) or negative reinforcement (a break) on 5 participants' escape-maintained problem behavior. Both procedures were assessed ...
    • Evaluating self-control and impulsivity in children with severe behavior disorders 

      Vollmer, Timothy R.; Borrero, John C.; Lalli, Joseph S.; Daniel, Dency (Wiley Online Library, 1999-11)
      Impulsivity and self-control involve a choice between a smaller, more immediate reinforcer and a larger, more delayed reinforcer. Impulsive behavior occurs when responding produces the more immediate, relatively smaller ...
    • Reduced GAP-43 mRNA in Dorsolateral Prefrontal Cortex of Patients with Schizophrenia 

      Weickert, Cynthia Shannon; Webster, Maree J.; Hyde, Thomas M.; Herman, Mary M.; Bachus, Susan E.; Bali, Geetha; Weinberger, Daniel R.; Kleinman, Joel E. (Oxford University Press, 2001-02-01)
      Schizophrenia has been associated with anatomical and functional abnormalities of the dorsolateral prefrontal cortex (DLPFC), which may reflect abnormal connections of DLPFC neurons. We measured mRNA levels of growth-associated ...
    • Fixed-time schedule effects as a function of baseline reinforcement rate 

      Ringdahl, Joel E.; Vollmer, Timothy R.; Borrero, John C.; Connell, James E. (Wiley Online Library, 2001-03)
      Using an arbitrary response, we evaluated fixed-time (FT) schedules that were either similar or dissimilar to a baseline (response-dependent) reinforcement schedule and extinction. Results suggested that both FT schedules ...
    • AMPA receptor binding in the dorsolateral prefrontal cortex of schizophrenics and controls 

      Noga, J.Thomas; Hyde, Thomas M.; Bachus, Susan E.; Herman, Mary M.; Kleinman, Joel E. (Elsevier, 2001-04-02)
    • Identifying possible contingencies during descriptive analyses of severe behavior disorders 

      Vollmer, Timothy R.; Borrero, John C.; Wright, Carrie S.; Camp, Carole Van; Lalli, Joseph S. (Wiley Online Library, 2001-08)
      Contingencies of reinforcement involve, in part, relations between behavior and subsequent environmental events. In this study we observed 11 individuals with developmental disabilities and severe behavior problems while ...
    • An application of the matching law to severe problem behavior 

      Borrero, John C.; Vollmer, Timothy R. (Wiley Online Library, 2002-02)
      We evaluated problem behavior and appropriate behavior using the matching equation with 4 individuals with developmental disabilities. Descriptive observations were conducted during interactions between the participants ...
    • Further evaluation of the role of protective equipment in the functional analysis of self-injurious behavior 

      Borrero, John C.; Vollmer, Timothy R.; Wright, Carrie S.; Lerman, Dorothea C.; Kelley, Michael E. (Wiley Online Library, 2002-03)
      Using a procedure similar to the one described by Le and Smith (in press), we evaluated the effects of protective equipment during a functional analysis for 2 individuals who engaged in severe self-injurious behavior (SIB). ...
    • VASE-Containing N-CAM Isoforms Are Increased in the Hippocampus in Bipolar Disorder but Not Schizophrenia 

      Vawter, Marquis P.; Hemperly, John J.; Hyde, Thomas M.; Bachus, Susan E.; VanderPutten, Dale M.; Howard, Allyson L.; Cannon-Spoor, H. E.; McCoy, Michael T.; Webster, Maree J.; Kleinman, Joel E.; Freed, William J. (Elsevier, 2002-05-25)
      The neural cell adhesion molecule (N-CAM) is a cell recognition molecule that is involved in cellular migration, synaptic plasticity, and CNS development. In schizophrenia, a 105- to 115-kDa N-CAM protein is increased in ...
    • An evaluation of contingency strength and response suppression 

      Borrero, John C.; Vollmer, Timothy R.; Wright, Carrie S. (Wiley Online Library, 2002-12)
      Typically, functional analyses of severe problem behavior have been conducted in two ways: (a) The target response is reinforced immediately after it occurs, or (b) the target response is reinforced on some schedule thought ...
    • The family safety/applied behavior analysis initiative: An introduction and overview 

      Van Camp, Carole M.; Borrero, John C.; Vollmer, Timothy R. (American Psychological Association, 2003)
      The Family Safety/Applied Behavior Analysis Initiative at the University of Florida is part of a statewide project designed to serve foster caregivers and foster children under the care of the Florida Department of Children ...
    • Descriptive Analyses of Caregiver Reprimands 

      Sloman, Kimberly N.; Vollmer, Timothy R.; Cotnoir, Nicole M.; Borrero, Carrie S.W.; Borrero, John C.; Samaha, Andrew L.; Peter, Claire C. St. (Wiley Online Library, 2005-08)
      We conducted descriptive observations of 5 individuals with developmental disabilities and severe problem behavior while they interacted with their caregivers in either simulated environments (an inpatient hospital facility) ...
    • Neuropathology of Suicide A Review and an Approach 

      Bachus, Susan E.; Hyde, Thomas M.; Akil, Mayada; Weickert, Cynthia Shannon; Vawter, Marquis P.; Kleinman, Joel E. (Wiley Online Library, 2006-12-17)
      Neuropathology is one approach to the effort to elucidate the pathophysiology of suicide. Initial neurochemical studies focusing on the roles of serotonin (5‐HT) and noradrenaline (NE) abnormalities in brains of suicide ...
    • Evaluating Features of Behavioral Treatments in the Nonhuman Animal Laboratory 

      Borrero, John C.; Vollmer, Timothy R.; Samaha, Andrew L.; Sloman, Kimberly N.; Francisco, Monica T. (American Psychological Association, 2007)
      Behavioral treatments for severe problem behavior are often derived from basic behavioral principles initially evaluated in the nonhuman operant laboratory. It is less common to see laboratory experiments conducted for the ...
    • A Unit Price Evaluation of Severe Problem Behavior 

      Borrero, John C.; Francisco, Monica T.; Haberlin, Alayna T.; Ross, Noel A.; Sran, Sandeep K. (Wiley Online Library, 2007-08)
      We evaluated problem behavior exhibited by 6 individuals with developmental disabilities using the behavioral economic conceptualization of unit price. Descriptive observations were conducted during interactions between ...