2018 CCBBI Archives

Friday, December 7, 2018 - 1:00pm to 2:00pmPsychology Building, Room 035

Dr. Dan KennedyDepartment of Psychology and Brain Sciences, Indiana University, presented "Opportunities and challenges for developing fMRI-based biomarkers in ASD."

Abstract: There is a pressing need for the development of objective, quantifiable biological markers (biomarkers) for psychiatric disorders. In this talk, I will discuss some of our recent work in developing reliable and individualized measures of brain functioning in typically developing individuals and in individuals with autism spectrum disorder (ASD). These measures include functional connectivity MRI as well as naturalistic viewing paradigms using complex video stimuli. I will also highlight the many challenges that must solved before fMRI-based biomarkers can become a reality, including respiratory and movement artifacts, determining best practices for data preprocessing, and considering heterogeneity that is characteristic of ASD and other psychiatric disorders. 

Friday, November 9, 2018 - 1:00pm to 2:00pm, Psychology Building, Room 217

Anjali Raja Beharelle , Post-Doc, Department of Economics, University of Zurich, presented "Decisions to explore are preceded by increased baseline arousal."

Abstract: Exploration behavior can be observed across all species and is critical for survival and progress. The noradrenergic arousal system is thought to play a key role in facilitating exploratory behavior, but most evidence for this claim is derived from animal neurophysiological studies or computational models. I will discuss our recent study using a combined approach of fMRI, pupillometry, computational modeling that demonstrate that exploratory behavior in humans may be triggered by context-adaptive responses of the arousal system. Our findings highlight the link between arousal and anterior cingulate cortex (ACC) function and its importance in initiating exploration.  Finally, I will show that increased sensitivity of both arousal and neural activity during exploratory states may improve behavioral flexibility and performance.

November 2, 2018 at 1:00pm, Users Meeting, Psychology Building 35 

Dr. Todd HareUniversity of Zurich, Department of Economics, presented "Computational and neurobiological foundations of leadership decisions." (Sponsored by Dr. I. Krajbich's NSF Career award and co-sponsored by the DSC and CCBBI).* This meeting will took the place of the regularly scheduled meeting on 11/9/18.

October 12, 2018 at 1:00pm, Users Meeting, Psychology Building 35 
This Town Hall meeting was the first of the academic year.  We discussed updates to policy, details regarding scanner sequences, upcoming events and other issues relevant to CCBBI users.

September 28, 2018 at 1:00pm, Users Workshop, Psychology Building Room 217
Dr. AJ Collegio (George Washington University) skyped in with us, via the OnNeuro platform for this meeting. Dr. Collegio's work answers the question whether you are more or less efficient to allocate attention to a bulldozer than a cell phone, even if the images are displayed with the same pixel measurements on the computer screen:

Abstract: Humans encounter objects of varying shapes and sizes every day. The impact of object size on visual perception has been well-demonstrated, specifically with recent fMRI studies demonstrating topographic organization of real-world object size in occipito-temporal cortex. How might this organization of the brain during perception translate to changes in behavior during an attentional selection task? Would such cortical segmentation have a direct impact on attentional selection?

April 18, 2018 at 2:00pm, fMRI Safety Training Class, Psychology Building 219

Please email Deborah Hardesty at hardesty.10@osu.edu for information on safety training classes.

April 13, 2018 at 1:00pm, Users Meeting, Psychology Building 35 
Dr. Dylan Wagner of the Department of Psychology presented "The impact of analysis software on task fMRI results." Dr. Wagner presented an overview of the recent paper "Exploring the impact of analysis software on task fMRI results". It was followed by a discussion of the BIDS imaging data structure and overview of some of the BIDS apps that are available.

April 3, 2018 at 11:00am, fMRI Safety Training Class, Psychology Building 117 
Please email Deborah Hardesty at hardesty.10@osu.edu for information on safety training classes.

March 23, 2018 at 1:00pm, Users Workshop, Psychology Building Room 217
The topic of the month was Job Seeking and Sushi! Dr. Julie Golomb answered questions about finding a job or postdoc in academia.

March 9, 2018 at 1:00pm, Users Meeting, Psychology Building 35 
Dr. Franco Pestilli, Assistant Professor in Psychology, Neuroscience and Cognitive Science at Indiana University, presented "Mapping brain connectomes to study human perception and cognition in development and aging."

February 23, 2018 at 1:00pm, Users Workshop, Psychology Building Room 217
The goal of the meeting was to integrate more of the community component and to encourage more cross-talk across different disciplines. In addition to a brief activity to facilitate discourse, participants discussed important information about the goals and plans for upcoming meetings. The workshop was open to all, and students and postdocs were particularly encouraged to attend. Refreshments were provided!

February 21, 2018 at 11:00am, fMRI Safety Training Class, Psychology Building 115
Please email Deborah Hardesty at hardesty.10@osu.edu for information on safety training classes.

February 16, 2018 at 2:00pm, Users Meeting, Psychology Building 35 
Please note the later start time for this user meeting.

Dr. Monica Rosenberg, Postdoctoral Associate at Yale University, presented "Connectome-based predictive modeling: Predicting individual differences in behavior from functional brain connectivity.” 

Abstract: fMRI studies of functional brain connectivity have traditionally described common features of network organization in the healthy population or have contrasted two groups, such as patients and controls. There is growing interest, however, in discovering connectivity-based biomarkers that predict individuals’ traits and behavior. I will present recent work that uses a new technique, connectome-based predictive modeling, to identify patterns of brain connectivity related to individual differences in attention, fluid intelligence, and personality measures. Critically, models based on these patterns — observed during both task performance and rest — generalize to predict behavior in novel participants and completely independent groups. This approach can be applied to make individualized predictions about other abilities and behaviors as well, and, from a broad perspective, demonstrates the potential for drawing inferences about single subjects from fMRI.

January 26, 2018 at 2:00pm, Users Workshop, Psychology Building Room 217
Sandy Shew, Director of Research Computing Services for Arts and Sciences, provided a hands-on walkthrough of the Unity cluster. Unity is a high-performance computing environment that is free to affiliates of the college of Arts and Sciences. Graduate students, postdocs and faculty attended to learn more about this service and how it could be implemented into their own analysis pipeline.

January 26, 2018 at 1:00pm, Users Meeting, Psychology Building 35 
Mr. John Heimaster, Director of Scientific Computing for the Department of Physics at The Ohio State University, discussed our computing needs, resources that are currently available, and research computing for the imaging community.