Papers for the month of April 2020


Jakicic J., Rogers R., Esteban-Cornejo I., Peven J., Stillman C., Watt J., Erickson K.

"The fitness versus body fat hypothesis in relation to hippocampal structure"
Psychophysiology, e13591:1-12

Mouse over here for a brief summary or click to open article in a new tab.The Fitness Versus Body Fat Hypothesis argues that cardiorespiratory fitness plays a more important role in cardiovascular health than adiposity. For the first time, we extend the debate to brain health and demonstrate that higher cardiorespiratory fitness, but not adiposity, is associated with greater volume and outward shape differences along the surface of the subiculum and CA1 regions of the left hippocampus.


Donofry, S. D., Jakicic, J. M., Rogers, R. J., Watt, J. C., Roecklein,, K. A.

"Comparison of Food Cue–Evoked and Resting-State Functional Connectivity in Obesity"
Psychosomatic Medicine, 82:261-271

Mouse over here for a brief summary or click to open article in a new tab.We examined the relationship between body mass index and task-evoked functional connectivity during the evaluation of high calorie food cues and resting state connectivity of the OFC. We found the obesity was associated with higher task-evoked connectivity between the OFC and regions of the DMN, but lower resting state connectivity of the OFC with reward-related regions such as the basal ganglia.


Sohrabpour, A.

"Noninvasive electromagnetic source imaging of spatiotemporally distributed epileptogenic brain sources"
Nature Communications, 11:1946

Mouse over here for a brief summary or click to open article in a new tab.We developed a novel dynamic brain source imaging technology from EEG/MEG to objectively quantify and image source extent of brain activation using sparse signal processing and machine learning. We further validated the technology in a group of 36 partial epilepsy patients, compared with invasive EEG recordings and surgical resection. The technique promises to enable imaging of where and how brain activation for brain function and dysfunction.


"What is a Replication?"
Philosophy of Science, 0, no. ja (-Not available-): -.

Mouse over here for a brief summary or click to open article in a new tab.This article develops a new, general account of replication (“the Resampling Account of replication”): I argue that a replication is an experiment that resamples the experimental components of an original experiment that are treated as random factors and that the function of replications is, narrowly, to assess the reliability of the replicated experiments. On this basis, I argue that the common notion of conceptual replication is confused, and that the on-going controversy about the relative value of direct and conceptual replications should be dissolved.


Beltz A., Woody M.L., Cummings L, Gilchrist D, Siegle G.J.

"Neural Connectivity Subtypes Predict Discrete Attentional Bias Profiles Among Heterogeneous Anxiety Patients"
Clinical Psychological Science, In press:N/A

Mouse over here for a brief summary or click to open article in a new tab.We used a well-validated method for data-driven parsing of neural connectivity to reveal connectivity-based subgroups among 60 adults with transdiagnostic anxiety. Neural connectivity-based categorization revealed an atypical, limbic-driven pattern of connectivity in a subset of anxious patients that generalized to atypical patterns of selective attention.


Bodnar, K., Hofkens, T.L., Wang, M.

"Science Identity Predicts Science Career Aspiration Across Gender and Race, but Especially for White Boys"
International Journal of Gender, Science and Technology, 12:32-45

Mouse over here for a brief summary or click to open article in a new tab.A recent approach to studying gender and race inequalities in science examines science identity: how strongly one associates oneself and identifies with the field of science. Since adolescence is an important time for identity development and when science disparities begin to emerge, we investigated how gender and race relate to science identity and science career aspirations using a dataset of diverse sixth, seventh, and ninth grade students across the United States (n = 930).


Szczupak D, Liu C, Yen CCC, Choi SH, Meireles F, Victorino C, Richards L, Lent R, Silva AC, Tovar-Moll F.

"Long Long-distance aberrant heterotopic connectivity in a mouse strain with a high incidence of callosal anomalies"
Neuroimage, 4:116875

Mouse over here for a brief summary or click to open article in a new tab.In this paper we characterize the Balb/c mouse strain as a model of Corpus callosum dysgenesis (CCD), a developmental brain condition in which some white matter fibers fail to find their natural course across the midplane, reorganizing instead to form new aberrant pathways. We used a connectome approach and found widespread brain connectivity differences between Balb/c and C57bl6 strains that show that the Balb/c strain presents local and global changes in brain structural connectivity that make it an attractive animal model for CCD.


Jakicic J, Rogers R, Alfini AJ, Smith JC, Watt J, Kang C, Erickson K.

"Changes in cerebral perfusion following a 12-month exercise and diet intervention."
Psychophysiology, 13589:13589

Mouse over here for a brief summary or click to open article in a new tab.In this study we evaluated whether weight loss via diet combined with aerobic exercise had an additive effect on changes in cerebral blood flow compared to weight loss via diet alone. Using data from a 12-month diet and exercise intervention, we demonstrated that a 10% reduction in weight increased cerebral blood flow diffusely across the brain. Further, there was some regional specificity of effects in both diet-only and diet combined with exercise groups. Our results demonstrate that behavioral weight loss interventions involving exercise exposure may provide unique effects on cerebral blood flow compared to interventions involving only diet.


Mariscal D.M, Iturralde P.A.,

"Altering attention to split-belt walking increases the generalization of motor memories across walking contexts"
Journal of Neurophysiology , 123:1838-1848

Mouse over here for a brief summary or click to open article in a new tab.Altering attention to one’s movements during sensorimotor adaptation facilitates the generalization of movement recalibration.


Degenhart, Alan; Bishop, William; Oby, Emily; Tyler-Kabara, Elizabeth

"Stabilization of a brain-computer interface via the alignment of low-dimensional spaces of neural activity"
Nature Biomedical Engineering, 0:0

Mouse over here for a brief summary or click to open article in a new tab.The instability of neural recordings can render clinical brain–computer interfaces (BCIs) uncontrollable. Here, we show that the alignment of low-dimensional neural manifolds (low-dimensional spaces that describe specific correlation patterns between neurons) can be used to stabilize neural activity, thereby maintaining BCI performance in the presence of recording instabilities.

Archive:

  • 2020
  • 2019
  • 2018
  • 2017
  • 2016
  • 2015
  • 2014
  • 2013