Profile Details

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Hire Dr. Sofia F.

Germany

USD 75 /hr

PhD Cognitive Neuroscientist | Behavioral Data Analysis, Statistical Modeling & Research Design | R

Profile Summary

I am a cognitive neuroscientist with a PhD from TU Dresden and over six years of experience designing and executing complex research projects end-to-end. My work has focused on human learning, cognitive control, and behavioral adaptation, using multimodal datasets including behavioral experiments, TMS, and fMRI. I offer rigorous, publication-quality analytical work, including study design, statistical modeling (mixed-effects models, multivariate analysis ), data cleaning and quality control, and interpretation of complex results. I am experienced in working with messy, incomplete, and high-dimensional datasets and translating findings clearly for both specialist and non-specialist audiences. I am a first author in peer-reviewed journals like Cerebral Cortex and Imaging Neuroscience, and have co-authored peer-reviewed publications in Human Brain Mapping and the Quarterly Journal of Experimental Psychology via collaborations with international research teams across Europe and North America. Technical skills: R (advanced: ggplot2, mixed-effects models, RShiny), Matlab, Git. I am available for projects in statistical analysis, research design, data interpretation, scientific writing, and literature review, particularly in cognitive/behavioral science, digital health, and applied neuroscience.

Subject Matter Expertise

• ☆ Behavioral Neuroscience
• ☆ Cognitive Neuroscience
• ☆ Data Analysis
• ☆ Predictive Modeling & Analytics
• ☆ Data Processing
• ☆ Data Exploration
• ☆ Data Visualization
• ☆ Data Cleaning
• ☆ Statistics
• ☆ Regression Analysis
• ☆ Multivariate Analysis
• ☆ Correlation Analysis
• ☆ Survey Design
• ☆ Study Design
• ☆ Statistical Review
• ☆ R
• ☆ Technical & Scientific Writing
• ☆ Manuscript & Journal Article Writing
• ☆ Experimental Protocols

Services

• Writing
• Research
• Consulting
• Data & AI
• Product Development

Writing Technical Writing

Research Scientific and Technical Research, Systematic Literature Review

Consulting Scientific and Technical Consulting

Data & AI Statistical Analysis, Data Visualization, Data Cleaning, Data Processing, Data Insights

Product Development Product Validation, Concept Development

Work Experience

PhD

TU Dresden

2020 - 2024

Education

Master Degree (Cognitive neuroscience)

Radboud University Nijmegen

2017 - 2019

Certifications

• PhD in Psychology / Cognitive Neuroscience

  TU-Dresden

  https://tud.qucosa.de/landing-page/?tx_dlf[id]=https://tud.qucosa.de/api/qucosa%3A99030/mets

  June 2025 - Present

• MSc Cognitive Neuroscience

  Radboud University

  https://scholar.google.com/citations?view_op=view_citation&hl=it&user=Ka_Adb8AAAAJ&citation_for_view=Ka_Adb8AAAAJ:9yKSN-GCB0IC

  July 2019 - Present

Publications

JOURNAL ARTICLE

Sofia Fregni, Uta Wolfensteller, Hannes Ruge (2025). The connected learning brain . Cerebral Cortex.

Sofia Fregni, Hannes Ruge, Janine Jargow, Eva Sinning, Alexander Willy Baumann (2024). EXPRESS: Characterizing the declarative-procedural transformation in instruction-based learning . Quarterly Journal of Experimental Psychology.

Sofia Fregni, Emily S. Nichols, Yue Gao, Li Liu, Marc F. Joanisse (2021). Individual differences in representational similarity of first and second languages in the bilingual brain . Human Brain Mapping.

PREPRINT

Sofia Fregni, Uta Wolfensteller, Hannes Ruge (2024). Initial Learning in the Brain: From Rules to Action .