A developmental analysis of the relationship between response strength and punishment

Two levels of training (100 vs. 500 trials) and two ages of rats (young and adult) were used in a developmental analysis of the relationship between response strength and the effects of punishment. The apparatus was a Y maze with three discriminably different arms. After 100 or 500 reinforced trials, subjects were shocked each time they responded in one arm. The recovery sessions followed the punishment session. Results from the punishment day indicated that: (a) young rats received a greater amount of shock, and (b) additional training increased the amount of shock received by the young but decreased it in the adults. The recovery data showed that: (a) the suppressive effects of punishment were greater for the adults than for the young, and (b) the recovery scores were not influenced by degree of overtraining. The Age by Overtraining interaction suggested that the relationship between response strength and punishment is age dependent. The age differences found with the amount-of-shock and recovery measures provided additional support for the position that younger rats are less competent than adult rats in inhibiting responses.

     

Age,sex, and racial differences in harsh physical punishment: Results from a nationally representative United States sample

The purpose of this research was to examine age, sex, and racial differences in the prevalence of harsh physical punishment in childhood in a nationally representative sample of the United States. Data were from the National Epidemiologic Survey on Alcohol and Related Conditions (NESARC) collected in 2004 and 2005 (n = 34,653). Logistic regression analyses were conducted to examine age, sex, and racial differences in the prevalence of harsh physical punishment. Results suggest that the prevalence of harsh physical punishment has been decreasing among more recently born age groups; however, there appear to be sex and racial differences in this trend over time. The magnitude of the decrease appears to be stronger for males than for females. By race, the decrease in harsh physical punishment over time is only apparent among Whites; Black participants demonstrate little change over time, and harsh physical punishment seems to be increasing over time among Hispanics. Prevention and intervention efforts that educate about the links of physical punishment to negative outcomes and alternative non-physical discipline strategies may be particularly useful in reducing the prevalence of harsh physical punishment over time.     

The Collateral Consequences of “Criminalized” School Punishment on Disadvantaged Parents and Families

The “criminalization” of school discipline has contributed to a number of negative outcomes for students and scholars have noted important racial, ethnic, and class disparities in school punishment. Yet, prior work provides little information in which to understand how the effects of criminalized school punishment may move beyond the student and impact parents and families—especially parents and families most likely to experience school discipline. By drawing upon what we know about the collateral consequences of criminal justice punishment—such as arrest and incarceration—on families more generally, the goal of this research project is to explore how school punishment affects disadvantaged parents and families. Interviews with primarily poor, single, Black mothers, reveal that as a result of school discipline, parents reported important collateral consequences including negative financial outcomes such as losing their job, negative emotional consequences including depression and emotional turmoil, and a decrease in future expectations for their child. Respondents highlighted that these consequences were largely attributable to social disadvantage and a lack of social capital.     

Physical punishment, childhood abuse and psychiatric disorders

OBJECTIVES: Physical punishment, as a means of disciplining children, may be considered a mild form of childhood adversity. Although many outcomes of physical punishment have been investigated, little attention has been given to the impact of physical punishment on later adult psychopathology. Also, it has been stated that physical punishment by a loving parent is not associated with negative outcomes; however, this theory has not been empirically tested with regard to psychiatric disorders. The main objective of the present study was to investigate three categories of increasing severity of childhood adversity (no physical punishment or abuse, physical punishment only, and child abuse) to examine whether the childhood experience of physical punishment alone was associated with adult psychopathology, after adjusting for sociodemographic variables and parental bonding dimensions. METHODS: Data were drawn from the nationally representative National Comorbidity Survey (NCS, n=5,877; age 15-54 years; response rate 82.4%). Binary logistic and multinomial logistic regression models were used to determine the odds of experiencing psychiatric disorders. RESULTS: Physical punishment was associated with increased odds of major depression (AOR=1.22; 95% CI=1.01-1.48), alcohol abuse/dependence (AOR=1.32; 95% CI=1.08-1.61), and externalizing problems (AOR=1.30; 95% CI=1.05-1.60) in adulthood after adjusting for sociodemographic variables and parental bonding dimensions. Individuals experiencing physical punishment only were at increased odds of adult psychopathology compared to those experiencing no physical punishment/abuse and at decreased odds when compared to those who were abused. CONCLUSIONS: Physical punishment is a mild form of childhood adversity that shows an association with adult psychopathology.     

Citric acid reduces the decline in P300 amplitude induced by acute alcohol consumption in healthy adults

Event-related potential (ERP) is a reliable neuroelectric measure of brain activity that helps to confirm the assessment of mental status and cognitive impairment. Many studies have reported that alcoholics show a significantly lower ERP P300 amplitude than the norm. In the present study, ERP P300 waves were measured to evaluate the effect of citric acid on cognitive function during excessive alcohol consumption in healthy adults. Five volunteers were selected through clinical interview, physical examination, and psychiatric assessment for participation in this study. In a double-blind placebo-controlled before-after design, each subject was treated with 5 ml/kg body weight alcohol, 5 ml/kg body weight alcohol and 1 mg citric acid, or a placebo on three separate occasions, one week apart. ERP P300, blood biochemical indicators, blood alcohol concentrations (BACs) and acetaldehyde concentrations were assessed. Repeated measure analysis of variance (ANOVA) with a within-subjects factor was used to evaluate differences in blood biochemical indicators, BACs, blood acetaldehyde concentrations, and ERP P300 in the three sessions of assessments. Several blood biochemical indicators showed significant differences between treatments, including the levels of cholinesterase (CHE), total bile acid (TBA), triglyceride (TG), total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), very low-density lipoprotein cholesterol (VLDL-C), and glycylproline dipeptidyl aminopeptidase (GPDA). BACs after consumption of alcohol alone or citric acid with alcohol were significantly higher compared to those after placebo treatment (P<0.05). There were no significant differences in blood acetaldehyde concentrations between the treatments. The P300 amplitudes on the frontal (Fz), central (Cz), and parietal (Pz) regions of the scalp after consumption of alcohol were significantly lower than those after consumption of the placebo or citric acid with alcohol (P<0.05), while there were no significant differences between the latter two treatments. The results of this study suggest that citric acid could reduce the decline in ERP P300 amplitude and cognitive ability induced by acute alcohol consumption. It may also affect some blood biochemical indicators, but the specific mechanisms need further research.     

Longitudinal Continuity in Understanding and Production of Giving-Related Behavior From Infancy to Childhood

Infants have an early understanding of giving (the transfer of an item by one agent to another), but little is known about individual differences in these abilities or their developmental outcomes. Here, 9-month-olds (N = 59) showing clearer neural processing (Event-related potential, ERP) of a give-me gesture also evidenced a stronger reaction (pupil dilation) to an inappropriate response to a give-me gesture, and at 2 years were more likely to give in response to a give-me gesture. None of the differences in understanding and production of giving-related behaviors were associated with other sociocognitive variables investigated: language, gaze-following, and nongiving helping. The early developmental continuity in understanding and production of giving behavior is consistent with the great importance of giving for humans throughout the life span.     

Executive function skills of 6–8 year olds: Brain and behavioral evidence and implications for school achievement

Academic and social success in school has been linked to children’s self-regulation. This study investigated the assessment of the executive function (EF) component of self-regulation using a low-cost, easily administered measure to determine whether scores obtained from the behavioral task would agree with those obtained using a laboratory-based neuropsychological measure of EF skills. The sample included 74 children (37 females; M = 86.2 months) who participated in two assessments of working memory and inhibitory control: Knock–Tap (NEPSY: Korkman, Kirk, & Kemp, 1998), and participated in event-related potential (ERP) testing that included the directional stroop test ( DST, Davidson, Cruess, Diamond, O’Craven, and Savoy (1999)). Three main findings emerged. First, children grouped as high vs. low performing on the NEPSY Knock–Tap Task were found to perform differently on the more difficult conditions of the DST (the Incongruent and Mixed Conditions), suggesting that the Knock–Tap Task as a low-cost and easy to administer assessment of EF skills may be one way for teachers to identify students with poor inhibitory control skills. Second, children’s performance on the DST was strongly related to their ERP responses, adding to evidence that differences in behavioral performance on the DST as a measure of EF skills reflect corresponding differences in brain processing. Finally, differences in brain processing on the DST task also were found when the children were grouped based on Knock–Tap performance. Simple screening procedures can enable teachers to identify children whose distractibility, inattentiveness, or poor attention spans may interfere with classroom learning.     

Cortisol stress reactivity moderates the effects of parental corporal punishment on Chinese preschoolers’ executive function

Background: To date whether the effects of parental corporal punishment (CP) on executive function (EF) distinct components are different is less clear. Moreover, theory and empirical work suggest that physiological regulation system may help to explain the individual differences in the developmental outcomes associated with parental CP.Objective: This study examined the effects of parental CP on Chinese preschoolers’ EF and whether the cortisol stress reactivity would moderate such effects.Participants and Setting: One hundred and fifty-two preschool-aged children and their parents from Beijing China participated in the present study.Methods: Parental CP was reported by fathers and mothers respectively in the first year of the study (2015, spring), and children’s EF was assessed and salivary cortisol was collected in the second year (2016, spring).Results: Both paternal and maternal CP were negatively correlated with children’s EF one year later, and the relation between maternal, but not paternal CP and children’s EF was moderated by cortisol stress reactivity. Specifically, compared to children with high cortisol stress reactivity levels, children with low cortisol stress reactivity levels who experienced maternal CP in the past year showed poorer global EF and working memory.Conclusions: Findings highlight the critical importance of examining the interactive effects of individual physiological level and environmental-level risks on young children’s self-regulation outcomes.     

Emotionally disturbed children's beliefs about punishment

Beliefs about discipline were examined in 58 emotionally disturbed, residentially placed children. Sixty-one percent had been physically or sexually abused prior to placement. Subjects were presented with vignettes depicting child misbehaviors and interpersonal problem situations. Very few children recommended physical punishment, including those from abusive families. However, emotionally disturbed children were somewhat more likely to endorse physical punishment than previously studied children from a normal sample. Neither gender nor ethnic differences were found. Children who endorsed physical punishment were also more likely to recommend aggressive problem solutions.     

A cross-cultural examination of use of corporal punishment on children: a focus on Sweden and the United States

It appears that Sweden and the United States may be a study in contrasts regarding the sanction and use of corporal punishment on children. A 1979 study of American parents noted that 81% of them employed corporal punishment with children. A different study done in Sweden in 1978 noted that only 26% of parents used corporal punishment with children. What points to the differences in these parenting patterns within the two countries? In addition, a 1977 U.S. Supreme Court case entitled Ingraham vs. Wright ruled that “schools are empowered to carry out corporal punishment.” This court case involved two high school boys in Florida who had been repeatedly struck with wooden paddles. In contrast, Sweden had statutes which prohibited corporal punishment of children in their secondary schools as early as the 1920s. In 1957, the country passed a law which defined corporal punishment as unacceptable for small children in the schools. Then, in 1979, the Swedish government passed a statute prohibiting corporal punishment by parents. Are there differences in the way the two countries view law and its uses? Or, do the cultures sanction violence in general or just violence against children in different ways? This article examines some of the similarities and differences found in American and Swedish treatment of children and proposes what appear to be extreme differences in the way the countries and their people approach corporal punishment.     

Parent discipline in Thailand: Corporal punishment use and associations with myths and psychological outcomes

A basic human right of all children is protection from physical punishment in all settings. Yet, corporal punishment remains common place within families, at home, at school, and elsewhere. In Thailand, cultural beliefs and values might preserve its use. This research sought to explore the use of corporal punishment in Thai homes. It also aimed to investigate young adult retrospective accounts of parent use of corporal punishment and their associations with psychological attributes and the acceptance of certain myths that might perpetuate its use. Two hundred and fifty young people (Mage = 20.26 years, SD = 1.19) recounted their parent’s disciplining strategies related to when they were 10 years old. They also completed the Personality Assessment Questionnaire (Rohner, 1999), the Corporal Punishment Myth Scale (Kish & Newcombe, 2015) and responded as parents to a number of child misbehavior scenarios. Overall, 80.4% reported some instance of corporal punishment as a 10-year-old with lifetime prevalence at 85.5%. Receiving corporal punishment was related to poorer psychological outcomes as a young adult. Myths about corporal punishment significantly predicted the use of that discipline strategy in the scenarios. The results are discussed in relation to Thai cultural values and beliefs and the need to gather further evidence to support further policy and legislative changes.     

Bidirectional avoidance by mice as a function of CS,US, and apparatus variables

Acquisition of two-way avoidance by mice was slower with a light CS than with a buzzer CS, with punishment of intertrial responses than without punishment, and with a short CS-CS interval than with a long CS-CS interval (30 vs. 60 sec). Light-cued avoidance was little affected by shock level (.35–1.5 mA), whereas mice trained with the buzzer CS learned faster at 1.5 mA. Animals required to move away from light or toward light showed comparable rates of acquisition. Other CS, US, and apparatus variables (directionality of cue, maximal shock duration, and presence vs. absence of a central partition in the shuttlebox) interacted in a complex fashion with those already mentioned. This resulted in widely differing performances in what may superficially appear to be different versions of the same task. The differences in mouse and rat responses to some of the variables can contribute to an understanding of the interactions between organismic and test factors and the relative explanatory value of alternative avoidance models.     

Correlates and Consequences of Spanking and Verbal Punishment for Low-Income White, African American, and Mexican American Toddlers

This study examined the prevalence, predictors, and outcomes of spanking and verbal punishment in 2,573 low-income White, African American, and Mexican American toddlers at ages 1, 2, and 3. Both spanking and verbal punishment varied by maternal race/ethnicity. Child fussiness at age 1 predicted spanking and verbal punishment at all 3 ages. Cross-lagged path analyses indicated that spanking (but not verbal punishment) at age 1 predicted child aggressive behavior problems at age 2 and lower Bayley mental development scores at age 3. Neither child aggressive behavior problems nor Bayley scores predicted later spanking or verbal punishment. In some instances, maternal race/ethnicity and/or emotional responsiveness moderated the effects of spanking and verbal punishment on child outcomes.     

Academic self-concept, interest, grades, and standardized test scores: reciprocal effects models of causal ordering

Reciprocal effects models of longitudinal data show that academic self-concept is both a cause and an effect of achievement. In this study this model was extended to juxtapose self-concept with academic interest. Based on longitudinal data from 2 nationally representative samples of German 7th-grade students (Study 1: N = 5,649, M age = 13.4; Study 2: N = 2,264, M age = 13.7 years), prior self-concept significantly affected subsequent math interest, school grades, and standardized test scores, whereas prior math interest had only a small effect on subsequent math self-concept. Despite stereotypic gender differences in means, linkages relating these constructs were invariant over gender. These results demonstrate the positive effects of academic self-concept on a variety of academic outcomes and integrate self-concept with the developmental motivation literature.     

Exploring the reciprocal relations between mothers’ and fathers’ use and attitudes of corporal punishment in China: A cross-lagged analysis

BackgroundCorporal punishment is a commonly used form of disciplinary technique. Sanctified parental attitudes of corporal punishment have been found to be a significant predictor of parental use of corporal punishment in previous research, while little is currently known about the reciprocal relations between parental use and their attitudes of corporal punishment.ObjectiveThis research aimed to examine the reciprocal relations between mothers’ and fathers’ use and attitudes of corporal punishment in China.MethodsData were collected on a total of 320 Chinese father-mother dyads with their children (10–11 years of age at baseline) through convenience sampling techniques at two time points, one year apart. Parents completed self-report measures of mothers' and fathers' use and attitudes of corporal punishment. Children completed self-report measures of parental corporal punishment.ResultsThe cross-lagged analysis indicated that parental attitudes of corporal punishment in a given year predicted their use of corporal punishment in the subsequent year both for mothers (β = 0.15, p < .01) and fathers (β = 0.10, p < .05), while their corporal punishment in a given year did not predict their attitudes of it in the subsequent year (βs < 0.11, ps > .05).ConclusionsFindings indicate that the reciprocal relations do not emerge, with only attitude-behavior effects being evident for both mothers and fathers, while behavior-attitude effects were not present. Findings in the present study highlight the importance of changing both mothers’ and fathers’ favorable attitudes toward corporal punishment when conducting appropriate prevention intervention to decrease its use.     

Prior opportunities to identify abuse in children with abusive head trauma

Infants with minor abusive injuries are at risk for more serious abusive injury, including abusive head trauma (AHT). Our study objective was to determine if children with AHT had prior opportunities to detect abuse and to describe the opportunities. All AHT cases from 7/1/2009 to 12/31/2011 at four tertiary care children's hospitals were included. A prior opportunity was defined as prior evaluation by either a medical or child protective services (CPS) professional when the symptoms and/or referral could be consistent with abuse but the diagnosis was not made and/or an alternate explanation was given and accepted. Two-hundred-thirty-two children with AHT were identified; median age (IQR) was 5.40 (3.30, 14.60) months. Ten percent (22/232) died. Of the 232 patients diagnosed with AHT, 31% (n = 73) had a total of 120 prior opportunities. Fifty-nine children (25%) had at least one prior opportunity to identify abuse in a medical setting, representing 98 prior opportunities. An additional 14 (6%) children had 22 prior opportunities through previous CPS involvement. There were no differences between those with and without a prior opportunity based on age, gender, race, insurance, mortality, or institution. Children with prior opportunities in a medical setting were more likely to have chronic subdural hemorrhage (48 vs. 17%, p < 0.01) and healing fractures (31 vs. 19%, p = 0.05). The most common prior opportunities included vomiting 31.6% (38/120), prior CPS contact 20% (24/120), and bruising 11.7% (14/120). Improvements in earlier recognition of AHT and subsequent intervention might prevent additional injuries and reduce mortality.     

Below-average, average, and above-average readers engage different and similar brain regions while reading

Event-related potentials (ERPs) were recorded from 27 children (14 girls, 13 boys) who varied in their reading skill levels. Both behavior performance measures recorded during the ERP word classification task and the ERP responses themselves discriminated between children with above-average, average, and below-average reading skills. ERP amplitudes and peak latencies decreased as reading skills increased. Furthermore, hemisphere differences increased with higher reading skill levels. Sex differences were also related to ERP amplitude variations across the scalp. However, ERPs recorded from boys and girls did not differ as a function of differences in the children's reading levels.     

Developmental changes in item and source memory: evidence from an ERP recognition memory study with children, adolescents, and adults

Event-related potential (ERP) correlates of item and source memory were assessed in 18 children (7-8 years), 20 adolescents (13-14 years), and 20 adults (20-29 years) performing a continuous recognition memory task with object and nonobject stimuli. Memory performance increased with age and was particularly low for source memory in children. The ERP difference between first presentations of objects and nonobjects, reflecting generic novelty processing, showed only small developmental changes. Regarding item memory, adults showed the putative ERP correlates of familiarity and recollection, whereas ERP effects in children and adolescents suggested a strong reliance on recollection. ERP correlates of source memory refined with age, suggesting maturation of strategic recollection between childhood and adolescence and the development of postretrieval control until adulthood.     

Reading Ability: Lexical Quality to Comprehension

The lexical quality hypothesis (LQH) claims that variation in the quality of word representations has consequences for reading skill, including comprehension. High lexical quality includes well-specified and partly redundant representations of form (orthography and phonology) and flexible representations of meaning, allowing for rapid and reliable meaning retrieval. Low-quality representations lead to specific word-related problems in comprehension. Six lines of research on adult readers demonstrate some of the implications of the LQH. First, large-scale correlational results show the general interdependence of comprehension and lexical skill while identifying disassociations that allow focus on comprehension-specific skill. Second, word-level semantic processing studies show comprehension skill differences in the time course of form-meaning confusions. Studies of rare vocabulary learning using event-related potentials (ERPs) show that, third, skilled comprehenders learn new words more effectively and show stronger ERP indicators for memory of the word learning event and, fourth, suggest skill differences in the stability of orthographic representations. Fifth, ERP markers show comprehension skill differences in meaning processing of ordinary words. Finally, in text reading, ERP results demonstrate momentary difficulties for low-skill comprehenders in integrating a word with the prior text. The studies provide evidence that word-level knowledge has consequences for word meaning processes in comprehension.     

Effects of learner control,advisement, and prior knowledge on young students' learning in a hypertext environment

This study was an investigation of the effects of learner control and of advisement in a hypertext learning environment with second-grade students who had different levels of prior knowledge about the content. Four treatment conditions crossing two variables, learner control (free access representing network structuring of hypertext vs. limited access representing hierarchical structuring of hypertext), and advisement (advisement vs. no-advisement), were established. From the quantitative and qualitative data, results indicated that: (a) for low prior knowledge (PK) students, the limited-access condition was more effective than the free-access condition, whereas high-PK students were able to function equally well in both conditions; (b) the free-access group reported a higher positive attitude for advisement than for no advisement, but the limited-access group showed no such difference in preference; (c) the low-PK group completed the lesson more quickly without advisement than with advisement, whereas the high-PK group's completion times did not vary across advisement conditions; and (d) analysis of the path data indicated that advisement was helpful in preventing disorientation in the free-access condition.