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PubMed2002

Genetic control of incubation behavior in the domestic hen.

The genetic control of incubation behavior was investigated in the domestic hen by analysis of the incidence of the behavior in reciprocal crosses between nonbroody White Leghorn (WL) and broody Bantam (B) lines and in a backcross of F1 males (WL male x B female) and WL females. The hypothesis tested was that a sex-linked gene (or genes) plays a dominant role in the expression of incubation behavior. The incidence of incubation behavior was tested in hens held in floor pens with access to nests containing hard-boiled eggs during a 28-wk photoinduced laying cycle. The cycle was repeated if the behavior was not observed during the first cycle. The incidence of incubation behavior in B and WL hens was 78.6% (n = 28) and 0% (n = 28), respectively. Contrary to prediction, the incidence of incubation behavior in the WL male x B female and the B male x WL female crosses were not significantly different (61.6%, n = 73; and 56.8%, n = 37, respectively). The incidence of incubation behavior in the F1 backcross was 5.8% (n = 103), which was significantly less (P < 0.001) than predicted (39.3%). It was concluded that incubation behavior was not controlled by major genes on the Z chromosome. It was hypothesized that at least two dominant autosomal genes are involved, one causing and the other inhibiting the behavior with equal influence.

Animals↗
PubMed1987

Factors controlling drug reinforced behavior.

An overview is provided of factors controlling drug reinforced behavior. Drug reinforced behavior is defined, and control procedures for rigorously identifying such behavior are discussed. Factors affecting drug reinforced behavior include the drug itself, animal species, route of administration, current circumstance variables, subject's experimental history, and response consequences. Current circumstance variables concern conditions present during opportunities for drug self-administration and include such factors as stimulus control, food deprivation, drug-access conditions, and brain lesions. Response consequence variables include reinforcement schedule, punishment, drug dose, and competing reinforcers. Drug reinforced behavior is a member of a more general class of behavior, namely operant behavior. Over the last 25 years there has been a rapid increase in understanding drug reinforcement, and this pattern of expanding knowledge suggests that the high rate of progress will continue.

Animals↗
PubMed1991

Development and functional significance of private speech among attention-deficit hyperactivity disordered and normal boys.

We compared the development of spontaneous private speech and its relationship to self-controlled behavior in a sample of 6- to 12-year-olds with attention-deficit hyperactivity disorder (ADHD) and matched normal controls. Thirty-eight boys were observed in their classrooms while engaged in math seatwork. Results revealed that ADHD children were delayed in private speech development in that they engaged in more externalized, self-fuiding and less inaudible, internalized speech than normal youngsters. Several findings suggest that the developmental lag was a consequence of a highly unmanageable attentional system that prevents ADHD children's private speech from gaining efficient mastery over behavior. First, self-guiding speech was associated with greater attentional focus only among the least distractible ADHD boys. Second, the most mature, internalized speech forms were correlated with self-stimulating behavior for ADHD subjects but not for controls. Third, observations of ADHD children both on and off stimulant medication indicated that reducing their symptoms substantially increased the maturity of private speech and its association with motor quiescence and attention to task. Results suggest that the Vygotskian hypothesis of a unidirectional path of influence from private speech to self-controlled behavior should be expanded into a bidirectional model. These findings may also shed light on why treatment programs that train children with attentional deficits in speech-to-self have shown limited efficacy.

Attention↗
PubMed2006

Projections from bed nuclei of the stria terminalis, magnocellular nucleus: implications for cerebral hemisphere regulation of micturition, defecation, and penile erection.

The basic structural organization of axonal projections from the small but distinct magnocellular and ventral nuclei (of the bed nuclei of the stria terminalis) was analyzed with the Phaseolus vulgaris leucoagglutinin anterograde tract tracing method in adult male rats. The former's overall projection pattern is complex, with over 80 distinct terminal fields ipsilateral to injection sites. Innervated regions in the cerebral hemisphere and brainstem fall into nine general functional categories: cerebral nuclei, behavior control column, orofacial motor-related, humorosensory/thirst-related, brainstem autonomic control network, neuroendocrine, hypothalamic visceromotor pattern-generator network, thalamocortical feedback loops, and behavioral state control. The most novel findings indicate that the magnocellular nucleus projects to virtually all known major parts of the brain network that controls pelvic functions, including micturition, defecation, and penile erection, as well as to brain networks controlling nutrient and body water homeostasis. This and other evidence suggests that the magnocellular nucleus is part of a corticostriatopallidal differentiation modulating and coordinating pelvic functions with the maintenance of nutrient and body water homeostasis. Projections of the ventral nucleus are a subset of those generated by the magnocellular nucleus, with the obvious difference that the ventral nucleus does not project detectably to Barrington's nucleus, the subfornical organ, the median preoptic and parastrial nuclei, the neuroendocrine system, and midbrain orofacial motor-related regions.

Animals↗
PubMed1979

Self-control training in the classroom: a review and critique.

Self-control training in classroom settings is becoming widespread. Establishing effective self- rather than externally controlled behavior modification programs in schools would enable children to control their own academic and social behavior, while enabling teachers to devote more time to teaching. The following components of self-control are reviewed in the present article: self-recording, self-evaluation, self-determination of contingencies, and self-instruction. Self-control strategies designed for the maintenance of appropriate classroom behavior, and issues associated with self-control training, such as the reliability of self-observation, response maintenance, generalization, and the role of external control, are examined. Finally, suggestions for maximizing the potential effectiveness of self-control training in the classroom (e.g., teaching self-observational procedures, teaching students to provide themselves with instructions and praise), as well as future areas for experimental investigation (e.g., social changes that may be associated with self-control procedures), are presented.

Adolescent↗
PubMed2006

The interactive influences of friend deviance and reward dominance on the development of externalizing behavior during middle adolescence.

This study investigated the interactive effects of friend deviance and reward dominance on the development of externalizing behavior of adolescents in the Child Development Project. Reward dominance was assessed at age 16 by performance on a computer-presented card-playing game in which participants had the choice of either continuing or discontinuing the game as the likelihood of reward decreased and the likelihood of punishment increased. At ages 14 and 16, friend deviance and externalizing behavior were assessed through self-report. As expected, based on motivational balance and response modulation theories, path analysis revealed that age 14 friend deviance predicted age 16 externalizing behavior controlling for age 14 externalizing behavior. Reward dominance was a significant moderator of the relationship between friend deviance and externalizing behavior. The contributions of deviant friends to the development of externalizing behavior were enhanced by adolescents' reward dominance.

Adolescent↗
PubMed1990

Learned changes of respiratory pump rate in response to lowered pH in Aplysia.

Respiratory pumping in the marine gastropod Aplysia is a well-characterized behavior controlled by identified neurons. The behavior is affected by stimuli such as change in ambient pH and shock. This study investigates learned changes in effects of these stimuli on rate of respiratory pumping movements. A sharp threshold exists for effects of environmental pH on respiratory pumping. Lowering the ambient pH from 7.8 to 7.0 does not affect the rate of respiratory pumping movements, but when pH is decreased further to 6.5 a large increase in pump rate is seen. Sensitizing stimuli, such as brief head shock and preexposure to pH 7.0, change the threshold so that respiratory pumping rate is increased in pH 7.0. Pairing exposure to pH 7.0 with head shock leads to pairing-specific amplification of the response in pH 7.0 alone. Pairing-specific consequences can be distinguished from sensitization only after an hour.

Acid-Base Equilibrium↗
PubMed1981

Responding maintained under intermittent schedules of electric-shock presentation: "Safety" or schedule effects?

Four experiments were conducted in which lever pressing by squirrel monkeys was maintained under multiple, mixed, or chained schedules of electric-shock presentation. In the first two experiments, a multiple schedule was employed in which a fixed-interval schedule of shock presentation alternated with a signaled two-minute component. Initially, no events were scheduled during the two-minute component (a safety period). In the first experiment, the safety period was "degraded" by introducing and systematically increasing the frequency of periodic shocks presented during that component. In the second experiment, the proportion of overall safe time to unsafe time was decreased by decreasing the value of the fixed-interval schedule while holding constant shock frequency during the two-minute component. In the third experiment, the overall arrangement was changed from a multiple to a mixed schedule in an attempt to determine whether fixed-interval responding would be maintained when a single exteroceptive stimulus was associated with both components. In the fourth experiment, the overall arrangement was changed from a multiple to a chained schedule in an effort to determine whether fixed-interval responding would be maintained when its consequence was presentation of a signaled "unsafe" period. Fixed-interval responding was well maintained under all experimental conditions; the varied relationships obtained lend more support to conceptualizations of shock-maintained behavior as exemplifying schedule-controlled behavior than to suggestions that such behavior may be readily accounted for by "safety theory."

Journal Article↗
PubMed2005

Older women's experiences of psychological violence in their marital relationships.

Violence within older couples is a reality, not a myth. In this study, qualitative interviews were conducted with 15 women ages 60 to 81 who had suffered marital psychological violence. Husbands' psychologically violent behaviors were grouped into 14 categories: control, denigration, deprivation, intimidation, threats, abdication of responsibility, manipulation, blame, harassment, negation of reality, indifference, making the wife feel guilty, sulking, and infantilization. Control behaviors were found to be the central category. Control dynamics increased at retirement, when children left home and when husbands experienced a decrease in health status. Implications for practice are also discussed.

Aged↗
PubMed1974

Effect of cueing on self-control of classroom behavior.

Behavioral self-control procedures, composed of self-assessment, self-recording, self-determination and administration of reinforcement, were introduced into a regular third-grade classroom immediately after a baseline period. The procedures produced a small and unstable increase in the level of on-task behavior in eight of the nine subjects. After a second baseline period, a cueing procedure was introduced, using a chart specifying on-task behavior. This enabled within-lesson changes in on-task behavior to be posted clearly for the children. The cueing procedure combined with the self-control procedures produced a high and stable increase in on-task behavior in all subjects.

Acoustic Stimulation↗
PubMed1995

A self-management program for adult asthma. Part I: Development and evaluation.

BACKGROUND: We developed and evaluated a self-management program for adult asthma. In developing the program, we considered questions of format and behavior control. The format we selected included components known to be effective in educational settings. We regulated asthma management behavior through the introduction of environmental cues. METHODS: Seventy-six subjects, whose asthma was generally under medical control, were assigned randomly to either a treatment group or a waiting-list control group. Those in the treatment group were exposed to a 7-week program that incorporated proven features of providing effective training and establishing behavioral control. Subsequently, subjects in the control group received the treatment. Short-term evaluation of the treatment was made after the subjects in the experimental group were trained but before the control subjects were trained. Long-term evaluation was conducted after both groups of subjects were trained. RESULTS: Over the short term, self-management training led to fewer asthma symptoms and physician visits and improvement in asthma management skills and cognitive abilities. Over the long term, self-management training was related to lower asthma attack frequency, reduced medication use, improvement in cognitive measures, and increased use of self-management skills. CONCLUSIONS: The program improved asthma management in patients whose conditions were already under good medical control. The effects of the program were apparent a year after the conclusion of self-management training.

Adult↗
PubMed1998

Dieting status and its relationship to eating and physical activity behaviors in a representative sample of US adolescents.

OBJECTIVE: To determine whether adolescents engaging in extreme weight loss methods (i.e., vomiting and diet pills) and those using more moderate methods differ from each other in dietary intake (fruits, vegetables, and higher-fat foods) and physical activity, and to compare these variables in dieting and nondieting adolescents. DESIGN: Data were obtained from the 1993 Youth Risk Behavior Survey. SUBJECTS/SETTINGS: The survey was administered to a nationally representative sample of 16,296 adolescents in grades 9 through 12 in a school setting. STATISTICAL ANALYSES: Data were analyzed for 16,125 adolescents. Associations between weight control behaviors and dietary intake and physical activity were examined using mixed-model logistic regressions, controlling for grade in school, race, parental education, region of the country, and urban vs nonurban residence. RESULTS: Differences in dietary and physical activity were found among adolescents who use extreme weight loss methods and moderate methods, and between dieters and nondieters. Adolescents using moderate methods of weight control engaged in more health-promoting eating and exercise behaviors than did extreme dieters or nondieters. Girls categorized as extreme dieters were less likely to eat fruits and vegetables than were moderate dieters (odds ratio [OR] = .56) or nondieters (OR = .75), and were more likely than more moderate dieters (OR = .76) to have consumed 2 or more servings of high-fat foods during the previous day. APPLICATIONS/CONCLUSIONS: Our findings suggest the importance of distinguishing between different types of dieting behaviors in clinical settings and research studies. Adolescents engaging in extreme weight control behaviors may be at particular risk for inadequate nutritional intake. In contrast, adolescents using more moderate methods may be consuming a more healthful diet than are nondieters. For all adolescents, nutrition guidance on healthful and safe weight control strategies is needed.

Adolescent↗
PubMed2006

[What causes self-control failure in delayed-cost dilemma: the role of affective expectancy and regulatory resource].

Two studies were conducted to examine the effect of affects on self-control behavior in delayed cost dilemma. Results of Study 1 suggested that long term negative affects such as regret and self-disgust might have facilitating effects on motivation of self-control if they were anticipated before delayed-cost dilemma situations, but inhibiting effects on self-efficacy of control when experienced after dilemma situations. Study 2 examined the effect of affect priming on self-control in eating behavior, as well as an interaction effect of anticipated affect and regulatory resource on it. Results indicated that participants who had enough regulatory resource succeeded in self-control, i.e. they ate less, regardless of the type of affect priming, but those who did not have sufficient resource and were not primed with long-term negative affects failed to control their behavior. It was argued that regulatory resource explanation of self-control should be expanded to the theory including anticipated affects.

Adult↗
PubMed1986

Perceptual organization of behavior: a hierarchical control model of coordinated action.

The behavior of individual subjects is compared with a hierarchical control system model of behavioral organization. Subjects varied the position of two control handles simultaneously to keep the distance constant between two pairs of lines. Three variations on this basic experiment that illustrate some fundamental properties of coordinated action are shown: first, how independent actions, compensating for unpredictable and undetectable disturbances, can produce a single behavioral result; second, how the ability to produce a particular result is maintained when the connection between action and result is changed; and third, how two independent outputs can appear to be related as coordinative structures when one output disturbs a result being controlled by the other. The correlation between the behavior of subjects and model in all experiments is typically on the order of .99. A detailed examination of the operation of the model shows that actions are structured by perception, not by central commands or equations of constraint.

Goals↗
PubMed1998

Appetitive and consummatory behaviors in the control of ethanol consumption: a measure of ethanol seeking behavior.

Models of ethanol self-administration in animals have demonstrated that ethanol can reinforce a variety of behaviors, independent of ethanol's caloric or fluid properties. However, the processes that control self-administration remain unclear. Determining factors related to ethanol seeking behavior, independent of consumption, is central to the concepts of intake regulation. The model described in this article proposes a method to separate the initial appetitive (seeking) behavior from the following consummatory (drinking) behavior to assess each behavior type. Rats were trained to lever press to gain access to a drinking tube connected to a fluid bottle containing either 10% ethanol or 3% sucrose for 20 min. When the response requirement to obtain access to the tube was increased, it was found that both solutions supported the same amount of responding (breakpoint was at approximately a fixed ratio 32 requirement), indicating equal reinforcer strength. However, regardless of the response requirement, if access to the fluids occurred, intakes were not changed. This suggests that factors besides those of reinforcer efficacy are important in controlling the size of the consummatory bout. Based on these findings, we believe that this model will be useful in determining factors related to seeking behaviors and the control of drinking bout size.

Alcohol Drinking↗
PubMed2002

Caloric intake and eating behavior in infants and toddlers with cystic fibrosis.

OBJECTIVE: Infants and toddlers with cystic fibrosis (CF) are at risk for poor growth. Controlled behavioral assessment studies have not focused on this population. This study compared calorie intake, percentage of Recommended Daily Allowance (RDA) per day and per kilogram, and percentage of calories from fat, protein, and carbohydrates between infants and toddlers with CF and healthy peers. Also, eating behaviors, such as meal duration, bites and sips per minute, percentage of meal spent eating, children's problematic eating behaviors, and parents' perceptions of mealtime behaviors were compared between infants and toddlers with CF and controls. Five hypotheses were tested. 1) Infants and toddlers with CF would be comparable to controls on the number of calories consumed per day and the percentage of calories from fat. 2) Infants and toddlers with CF would not meet the CF dietary guidelines for the percentage of RDA for calories or the percentage of calories from fat. 3) Infants and toddlers with CF would have longer meal durations than healthy peers, but would not differ on the pace of eating, the number of calories consumed during the meal, or the percentage of time spent eating during the meal. 4) Parents of infants and toddlers with CF would perceive more problematic mealtime behavior than controls. 5) Parents' perceptions of children's mealtime behavior would positively correlate with meal duration and negatively correlate with the number of calories consumed during the meal. DESIGN: A 2-group comparison study. SETTING/SAMPLE: A clinical sample of 35 infants and toddlers with CF (M = 18.6; standard deviation = 8.1 months; range = 7-35 months) and a community sample of 34 healthy peers matched for age, gender, socioeconomic status, and number of parents and siblings present during mealtimes. MEASUREMENT AND MAIN RESULTS: Children's calorie intake was measured using 3-day diet diaries. The 2 groups did not differ on the total number of calories consumed per day, the percentage of calories derived from fat, or the percentage of RDA consumed per day. Infants and toddlers with CF were not meeting the CF dietary recommendations of 120% to 150% RDA for energy with 40% of calories coming from fat. Using the Dyadic Interaction Nomenclature for Eating, a behavioral coding system, videotaped recordings of children's dinner meals were scored for meal duration, number of bites and sips per minute, number of calories per bite or sip, and the percentage of 10-second intervals with bites and sips. The CF sample had significantly longer mealtimes (20.2 minutes) than the control group (16.4 minutes), but did not differ on calories consumed at the meal, bites and sips per minute, calories per bite and sip, or time spent eating during the meal. On the Behavioral Pediatrics Feeding Assessment Scale, a measure of parental perceptions of mealtime behavior that was completed by a subset of families (39 families), parents of infants and toddlers with CF endorsed a greater number of mealtime behaviors as problems and a higher occurrence of problems than did parents of controls. Examples of these behaviors for the CF sample included problems with their child's willingness to try new foods (48%), eat vegetables (48%), and observations that their child has a poor appetite (32%) and would rather drink than eat (32%). Parents of children with CF chose a greater number of mealtime strategies and feelings as problems and reported more frequently using problematic strategies at mealtimes than did parents of controls. Examples of problematic strategies and feelings for parents of infants and toddlers with CF included feeling anxious/frustrated when feeding their children (37%), not feeling confident that their child eats enough (32%), and using coaxing to get their child to take a bite (26%). For the entire sample, a positive correlation of 0.29 was found between the number of mealtime behavior problems reported by parents and meal duration, suggesting the co-occurrence of problematic mealtime behavior with longer meal duration. No relationship was found between the number of child mealtime behavior problems reported by parents and the number of calories consumed during the filmed meal. For the CF sample, a correlation of -0.26 between children's weight percentile for age and the filmed meal duration was found, suggesting a tendency for meal duration to increase as children's weight for age decreases. Post-hoc analyses were conducted comparing infants and toddlers with previously reported samples of preschool and school-aged children on meal duration. Results demonstrated that in each group, children with CF had longer meals than age-matched controls. CONCLUSIONS: Our findings reveal significant deficits in achieving dietary recommendations for many families of infants and toddlers with CF. Only 11% of infants and toddlers with CF met the CF dietary recommendation of at least 120% of the RDA/day for energy. In addition, infants and toddlers were found to derive only 34% of their daily calories from fat, compared with the recommended 40% needed for a moderate to high fat diet. These results underscore the need for intervention in families of infants and toddlers with CF, who in addition to being at increased risk for malnutrition, may also experience a hastening in the decline of their pulmonary status because of poor nutritional status. Currently, there is limited programmatic research on nutritional and feeding interventions for toddlers and infants with CF. One study, which used a hospital-based behavioral education program to increase the caloric intake of 3 children (ages 10-20 months) who were below the fifth percentile for weight for length, found at least a 54% increase in calories for each child after treatment. Similarly, preliminary findings of 2 parent-based interventions, a nutrition education curriculum and a nutrition education plus behavior parent-training curriculum, found a 22% and 32% increase in daily calories, respectively, at treatment completion. A large-scale clinical trial is needed to evaluate the efficacy of any nutritional intervention before widespread dissemination. Additional assessment-focused research is also needed to identify patients' who may be at greatest risk for malnutrition and to guide the development of interventions to treat them.

Age Factors↗
PubMed1985

Interaction of androgens and estrogens in the control of sexual behavior in male Japanese quail.

A series of 4 experiments was performed to study the relative contribution of androgens and estrogens in the activation of sexual behavior in castrated male quail. The synthetic androgen methyltrienolone (R 1881) which is not metabolized in androgen target tissues activated sexual behavior in castrated birds and at the dose level of 0.5-1 mg/day/animal had the same potency as testosterone (T). However R 1881 was much more active than T in the induction of cloacal gland growth and activation of crowing, two typically androgen-dependent responses. This suggests that sexual behavior is not controlled by exactly the same mechanism as crowing or cloacal gland growth. In another experiment, estradiol (E2) alone activated sexual behavior but it is only at very high doses which had clear toxic effects that a significant behavioral activation could be observed. This questions the role of E2 as the physiological agent stimulating copulation in intact birds unless it is assumed that centrally administered E2 would be much more active compared to peripheral E2 which is exposed to a very intense peripheral catabolism. In the last two experiments, a clear synergism could be detected between 5 alpha-dihydrotestosterone (5 alpha-DHT) and E2 in the activation of sexual activity and doses of hormones could be defined which had almost no activity by themselves but significantly stimulated sexual behavior when given simultaneously. It was however impossible to define a hormonal treatment with T metabolites which restored behavior to its precastration level, a result very easily achieved with T treatments. Taken together, these data suggest that activation of sexual behavior in quail does not depend only on E2, nor 5 alpha-DHT nor even on their combined action. Considering that specific T receptors which probably do not bind 5 alpha-DHT are present in the brain, it would seem justified to reconsider the possible role played by T itself in the activation of behavior.

Androgens↗