The number-line task has been extensively used to study the mental representation of numbers in children. However, studies suggest that proportional reasoning provides a better account of children's performance. Ninety 4- to 6-year-olds were given a number-line task with symbolic numbers, with clustered dot arrays that resembled a perceptual…

Generalization of learning can arise from 2 distinct sources: failure to discriminate a novel test stimulus from the trained stimulus and active extrapolation from the trained stimulus to the test stimulus despite them being discriminable. We investigated these 2 processes in a predictive learning task by testing stimulus discriminability…

In two experiments, participants tracked the identity and location of moving words. The task bears resemblance to one performed by air traffic controllers who track multiple moving aircraft, where they are identified with relatively complex alphanumeric call signs. In Experiment 1, stimulus familiarity was manipulated by comparing the tracking of…

Previous studies on skill acquisition have taught targets in stimulus sets composed of different numbers of stimuli. Although the rationale for selection of a stimulus set size is not clear, the number of target stimuli trained within a set is a treatment decision for which there is limited empirical support. The current investigation compared the…

The role of awareness in differential delay eyeblink conditioning (EBC) has been a topic of much debate. We tested the idea that awareness is required for differential delay EBC when two cues are perceptually similar. The present study manipulated frequencies of auditory conditioned stimuli (CS) to vary CS similarity in three groups of…

In CA1 neurons of guinea pig hippocampal slices, long-term potentiation (LTP) was induced in field excitatory postsynaptic potentials (EPSPs) or population spikes (PSs) by the delivery of high-frequency stimulation (HFS, 100 pulses at 100 Hz) to CA1 synapses, and was reversed by the delivery of a train of low-frequency stimulation (LFS, 1000…

If a target stimulus is presented together with a response-irrelevant distractor stimulus, both stimuli can be encoded together with the response in an event file (see Hommel, 2004). The repetition of any feature of such an event-file can then retrieve the previously encoded response. This kind of feature-based retrieval is an important mechanism…

The evaluative conditioning (EC) phenomenon is central to the study of preference acquisition and attitude formation. Early studies have reported EC in the absence of awareness, but more recent work has questioned this conclusion. In previous work, using briefly presented and pattern-masked conditioned stimuli (CSs), we found that above-chance…

The collection of articles presented by Pollak, Camras, and Cole (2019) provides a stimulating survey of the current state of research on emotional development. However, the special issue also makes apparent the need for defining the construct of interest. Definitions of emotions guide how researchers deal with fundamental theoretical and…

Two themes emerge from studies of the development of symbolic understanding; that development proceeds through multiple levels of understanding prior to full and reflective knowledge of the representational function of pictorial symbols, and that development is founded upon individual cognitive and social cognitive proclivities as well as on…

Creativity is a fundamental human accomplishment from scientific advances to composing music. The left dorsolateral prefrontal cortex (DLPFC) and inferior frontal gyrus (IFG) are important metacontrol hubs in flexibility and persistence brain states, respectively. Those hubs are related to divergent thinking, insight problem-solving, and…

It is a prevailing theoretical claim that path integration is the primary means of developing global spatial representations. However, this claim is at odds with reported difficulty to develop global spatial representations of a multiscale environment using path integration. The current study tested a new hypothesis that locally similar but…

Uncertainty tolerance, individuals' perceptions/responses to uncertain stimuli, is increasingly recognized as critical to effective healthcare practice. While the COVID-19 pandemic generated collective uncertainty, healthcare-related uncertainty is omnipresent. Correspondingly, there is increasing focus on uncertainty tolerance as a health…

Objective: This study sought to examine if hypervigilance is one mechanism through which aspects of less supportive campus climates are associated with mental health symptoms for college students. Participants: Data from 386 undergraduate college students attending a small college in the northeastern United States were collected. Methods:…

Self-determination skills are critical for improving life outcomes for individuals with intellectual or developmental disabilities (IDD). The recent growth of postsecondary education (PSE) programs for those with IDD has provided additional opportunities for teaching self-determination skills. This study used a multiple probe across participants…