Improvements in task performance after practice are associated with scale-free dynamics of brain activity.

Although practicing a task generally benefits later performance on that same task, there are individual differences in practice effects. One avenue to model such differences comes from research showing that brain networks extract functional advantages from operating in the vicinity of criticality, a state in which brain network activity is more scale-free. We hypothesized that higher scale-free signal from fMRI data, measured with the Hurst exponent (), indicates closer proximity to critical states.

Parental intrusive homework support and math achievement: Does the child's mindset matter?

Prior research shows that when parents monitor, check, and assist in completing homework without an invitation, their children's motivation and academic achievement often decline. We propose that intrusive support from parents might also send the message that children are incompetent, especially if they believe their intelligence is fixed. We tested whether children's mindsets moderate the negative link between parents' intrusive homework support and achievement among first- and second-grade students followed for one academic year (Study 1, = 563) and middle and high school students for two academic years (Study 2, = 1,613).

Effort(less) exam preparation: Math anxiety predicts the avoidance of effortful study strategies.

Previous research suggests that math anxiety, or feelings of apprehension about math, leads individuals to engage in math avoidance behaviors that negatively impact their future math performance. However, much of the research on this topic explores global avoidance behaviors in situations where math can be avoided entirely rather than more localized avoidance behaviors that occur within a mathematics context. Since the option to completely avoid math is not common in most formal education systems, we investigated how and if math avoidance behaviors manifest for math-anxious high school students enrolled in math courses.

Elementary school teachers' math anxiety and students' math learning: A large-scale replication.

A solid foundation in math is important for children's long-term academic success. Many factors influence children's math learning-including the math content students are taught in school, the quality of their instruction, and the math attitudes of students' teachers. Using a large and diverse sample of first-grade students (n = 551), we conducted a large-scale replication of a previous study (Proceedings of the National Academy of Sciences of the USA, 2010, 1860; n = 117), which found that girls in classes with highly math anxious teachers learned less math during the school year, as compared to girls whose math teachers were less anxious about math.

Calculated avoidance: Math anxiety predicts math avoidance in effort-based decision-making.

Math anxiety-negative feelings toward math-is hypothesized to be associated with the avoidance of math-related activities such as taking math courses and pursuing STEM careers. However, there is little experimental evidence for the math anxiety-avoidance link. Such evidence is important for formulating how to break this relationship.

Reducing socioeconomic disparities in the STEM pipeline through student emotion regulation.

Educational attainment is one lever that can increase opportunity for economically disadvantaged families-especially in Science, Technology, Engineering, and Math (STEM). Unfortunately, students from lower-income backgrounds often perform poorly and fail high school STEM courses, which are a necessary step in pursuing fast-growing and lucrative STEM careers, graduating high school, and matriculating to college. We reasoned that, because high school STEM courses often use high-stakes tests to gauge performance, and such tests can be especially stressful for lower-income students, interventions that help students regulate their negative emotions during tests should reduce the achievement gap between higher- and lower-income students.

Disassociating the relation between parents' math anxiety and children's math achievement: Long-term effects of a math app intervention.

Although parents' fears and worries about math-termed math anxiety-are negatively associated with their children's math achievement in early elementary school, access to an educational math app that 1st-grade children and parents use together can ameliorate this relation. Here we show that children of higher-math-anxious parents learn less math during 1st-3rd grades, but this is not the case when families are given a math app (even after app use markedly decreases). Reducing the link between parents' math anxiety and their positive attitudes about math for their children helped to explain the sustained benefit of the math app.

Characterizing the neural coding of symbolic quantities.

How the brain encodes abstract numerical symbols is a fundamental question in philosophy and cognitive neuroscience alike. Here we probe the nature of symbolic number representation in the brain by characterizing the neural similarity space for symbolic quantities in regions sensitive to their semantic content. In parietal and occipital regions, the similarity space of number symbols was positively predicted by the lexical frequency of numerals in parietal and occipital areas, and was unrelated to numerical ratio.

Simple arithmetic: not so simple for highly math anxious individuals.

Fluency with simple arithmetic, typically achieved in early elementary school, is thought to be one of the building blocks of mathematical competence. Behavioral studies with adults indicate that math anxiety (feelings of tension or apprehension about math) is associated with poor performance on cognitively demanding math problems. However, it remains unclear whether there are fundamental differences in how high and low math anxious individuals approach overlearned simple arithmetic problems that are less reliant on cognitive control.

Performance during competition and competition outcome in relation to testosterone and cortisol among women.

A contribution to a special issue on Hormones and Human Competition. This study investigated the relation between competition, testosterone (T), and cortisol (C) in women. One hundred and twenty female participants competed against a male confederate in a computerized laboratory task.

How do generic statements impact performance? Evidence for entity beliefs.

Generic statements about the abilities of children's social groups (e.g. 'Girls/Boys are good at this game') negatively impact children's performance - even if the statements are favorable towards children's own social groups.

Response to Comment on "Math at home adds up to achievement in school".

Frank presents an alternative interpretation of our data, yet reports largely similar results to those in our original Report. A critical difference centers on how to interpret and test interaction effects. Frank finds no mistakes in our analyses.

Jump-Starting Early Childhood Education at Home: Early Learning, Parent Motivation, and Public Policy.

By the time children begin formal schooling, their experiences at home have already contributed to large variations in their math and language development, and once school begins, academic achievement continues to depend strongly on influences outside of school. It is thus essential that educational reform strategies involve primary caregivers. Specifically, programs and policies should promote and support aspects of caregiver-child interaction that have been empirically demonstrated to boost early learning and should seek to impede "motivational sinkholes" that threaten to undermine caregivers' desires to engage their children effectively.

Math at home adds up to achievement in school.

With a randomized field experiment of 587 first-graders, we tested an educational intervention designed to promote interactions between children and parents relating to math. We predicted that increasing math activities at home would increase children's math achievement at school. We tested this prediction by having children engage in math story time with their parents.

On the relationship between math anxiety and math achievement in early elementary school: The role of problem solving strategies.

Even at young ages, children self-report experiencing math anxiety, which negatively relates to their math achievement. Leveraging a large dataset of first and second grade students' math achievement scores, math problem solving strategies, and math attitudes, we explored the possibility that children's math anxiety (i.e.

Anxiety and cognition.

In this review we discuss the interplay between anxiety and cognition, illustrating how anxiety can compromise performance on cognitively-demanding tasks and lead people to perform below their ability. Using math anxiety and test anxiety as examples, we highlight key findings from psychology, cognitive science, and neuroscience, to show that how one approaches an anxiety-inducing situation can have a large impact on how that person ultimately performs. We end by discussing who is most susceptible to anxiety-induced poor performance and suggest promising techniques which may help to reduce the negative impact of anxiety on performance.

Intergenerational Effects of Parents' Math Anxiety on Children's Math Achievement and Anxiety.

A large field study of children in first and second grade explored how parents' anxiety about math relates to their children's math achievement. The goal of the study was to better understand why some students perform worse in math than others. We tested whether parents' math anxiety predicts their children's math achievement across the school year.

Physical experience enhances science learning.

Three laboratory experiments involving students' behavior and brain imaging and one randomized field experiment in a college physics class explored the importance of physical experience in science learning. We reasoned that students' understanding of science concepts such as torque and angular momentum is aided by activation of sensorimotor brain systems that add kinetic detail and meaning to students' thinking. We tested whether physical experience with angular momentum increases involvement of sensorimotor brain systems during students' subsequent reasoning and whether this involvement aids their understanding.

Gesturing has a larger impact on problem-solving than action, even when action is accompanied by words.

The coordination of speech with gesture elicits changes in speakers' problem-solving behavior beyond the changes elicited by the coordination of speech with action. Participants solved the Tower of Hanoi puzzle (TOH1); explained their solution using speech coordinated with either Gestures (Gesture+Talk) or Actions (Action+Talk), or demonstrated their solution using Actions alone (Action); then solved the puzzle again (TOH2). For some participants (Switch group), disk weights during TOH2 were reversed (smallest = heaviest).

Qualitatively different coding of symbolic and nonsymbolic numbers in the human brain.

Are symbolic and nonsymbolic numbers coded differently in the brain? Neuronal data indicate that overlap in numerical tuning curves is a hallmark of the approximate, analogue nature of nonsymbolic number representation. Consequently, patterns of fMRI activity should be more correlated when the representational overlap between two numbers is relatively high. In bilateral intraparietal sulci (IPS), for nonsymbolic numbers, the pattern of voxelwise correlations between pairs of numbers mirrored the amount of overlap in their tuning curves under the assumption of approximate, analogue coding.

Expert athletes activate somatosensory and motor planning regions of the brain when passively listening to familiar sports sounds.

The present functional magnetic resonance imaging study examined the neural response to familiar and unfamiliar, sport and non-sport environmental sounds in expert and novice athletes. Results revealed differential neural responses dependent on sports expertise. Experts had greater neural activation than novices in focal sensorimotor areas such as the supplementary motor area, and pre- and postcentral gyri.

The role of expressive writing in math anxiety.

Math anxiety is a negative affective reaction to situations involving math. Previous work demonstrates that math anxiety can negatively impact math problem solving by creating performance-related worries that disrupt the working memory needed for the task at hand. By leveraging knowledge about the mechanism underlying the math anxiety-performance relationship, we tested the effectiveness of a short expressive writing intervention that has been shown to reduce intrusive thoughts and improve working memory availability.

Ordinality and the nature of symbolic numbers.

The view that representations of symbolic and nonsymbolic numbers are closely tied to one another is widespread. However, the link between symbolic and nonsymbolic numbers is almost always inferred from cardinal processing tasks. In the current work, we show that considering ordinality instead points to striking differences between symbolic and nonsymbolic numbers.

Understanding gesture: is the listener's motor system involved?

Listeners are able to glean information from the gestures that speakers produce, seemingly without conscious awareness. However, little is known about the mechanisms that underlie this process. Research on human action understanding shows that perceiving another's actions results in automatic activation of the motor system in the observer, which then affects the observer's understanding of the actor's goals.

From attentional control to attentional spillover: a skill-level investigation of attention, movement, and performance outcomes.

Two experiments examined the impact of attention on the movement and putting accuracy of novice and experienced golfers. In Experiment 1, attentional control was manipulated via two different secondary tasks: (i) an extraneous condition in which participants judged the frequency of an auditory cue presented during their stroke and, (ii) a skill-focused condition in which participants judged whether the cue occurred closer to the starting or end point of the swing segment in which it was presented. For experts, putting performance was least accurate in the skill-focused condition and when the cue was presented earlier.