A neural correlate of strategic exploration at the onset of adolescence
The onset of adolescence is associated with an increase in the behavioral tendency to explore and seek novel experiences. However, this exploration has rarely been quantified, and its neural correlates during this period remain unclear. Previously, ...
Phonological processing in primary progressive aphasia
- Maya L. Henry,
- Stephen M. Wilson,
- Miranda C. Babiak,
- Maria Luisa Mandelli,
- Pelagie M. Beeson,
- Zachary A. Miller,
- Maria Luisa Gorno-Tempini
Individuals with primary progressive aphasia PPA show selective breakdown in regions within the proposed dorsal articulatory-phonological and ventral lexical-semantic pathways involved in language processing. Phonological STM impairment, which has been ...
Timing matters? learning of complex spatiotemporal sequences in left-hemisphere stroke patients
During rehabilitation after stroke motor sequence learning is of particular importance because considerable effort is devoted to reacquiring lost motor skills. Previous studies suggest that implicit motor sequence learning is preserved in stroke ...
Withholding a reward-driven action: Studies of the rise and fall of motor activation and the effect of cognitive depletion
Controlling an inappropriate response tendency in the face of a reward-predicting stimulus likely depends on the strength of the reward-driven activation, the strength of a putative top-down control process, and their relative timing. We developed a ...
Visual cortical representation of whole words and hemifield-split word parts
Reading requires the neural integration of visual word form information that is split between our retinal hemifields. We examined multiple visual cortical areas involved in this process by measuring fMRI responses while observers viewed words that ...
The value of being wrong: Intermittent feedback delivery alters the striatal response to negative feedback
Whereas positive feedback is both rewarding and informative, negative feedback can be construed as either punishing because it is indicative of poor performance or informative because it may lead to goal attainment. In this neuroimaging experiment, we ...
Reduction of dual-task costs by noninvasive modulation of prefrontal activity in healthy elders
Dual tasking e.g., walking or standing while performing a cognitive task disrupts performance in one or both tasks, and such dual-task costs increase with aging into senescence. Dual tasking activates a network of brain regions including pFC. We ...
Cortical thickness in fusiform face area predicts face and object recognition performance
The fusiform face area FFA is defined by its selectivity for faces. Several studies have shown that the response of FFA to nonface objects can predict behavioral performance for these objects. However, one possible account is that experts pay more ...
Information processing in the mental workspace is fundamentally distributed
The brain is a complex, interconnected information processing network. In humans, this network supports a mental workspace that enables high-level abilities such as scientific and artistic creativity. Do the component processes underlying these ...
Pupil diameter tracks the exploration-exploitation trade-off during analogical reasoning and explains individual differences in fluid intelligence
The ability to adaptively shift between exploration and exploitation control states is critical for optimizing behavioral performance. Converging evidence from primate electrophysiology and computational neural modeling has suggested that this ability ...
The speed of serial attention shifts in visual search: Evidence from the n2pc component
Finding target objects among distractors in visual search display is often assumed to be based on sequential movements of attention between different objects. However, the speed of such serial attention shifts is still under dispute. We employed a ...
Attentional selection can be predicted by reinforcement learning of task-relevant stimulus features weighted by value-independent stickiness
Attention includes processes that evaluate stimuli relevance, select the most relevant stimulus against less relevant stimuli, and bias choice behavior toward the selected information. It is not clear how these processes interact. Here, we captured ...
