News:
Fall 2024: Dr. Jordan Hamm delivered a keynote address at the 10th Mismatch Negativity conference in Salamanca, Spain.
Summer 2024: Georgia Bastos successfully defended her dissertation, titled ““Circuit, cell and molecular mechanisms for context processing in the mouse visual cortex.” Congrats Dr. Bastos! She will join the Wenzel lab in Bonn, Germany for a postdoc this fall.
Summer 2024: Chloe West-Jacobs successfully defended her dissertation, titled ““Relaxed beliefs after psychedelics: from sensory processing to mystical states.” Congrats Dr. West-Jacobs!
Summer 2024: Graduate student Anna Rader was awarded an F31 NRSA fellowship for her project “The adolescent development of top-down feedback for visual processing”. F31 NRSA fellowship. F31EY036279. P.I.: A.M. Rader. Mentor: J.P. Hamm. Co-mentor: N.G. Forger
Summer 2024: Excited to share our new preprint! In humans and mice, we studied the impacts of psychedelics in the days/weeks after a trip. What we found amounts to a sort of stop-&-smell-the-roses effect. A neural basis for the afterglow. https://www.biorxiv.org/content/10.1101/2024.07.03.601959v1
Spring 2024: Dr. Jordan Hamm was awarded tenure and promoted to Associate Professor of Neuroscience at Georgia State University.
Spring 2024: In collaboration with Dr. Melanie Grubisha (PITT), the Hamm lab was awarded part of a 5 year R01 from the National Institute of Mental Health to study the development of sensory cortical function across adolescence and in a schizophrenia-relevant mouse model of adolescent-period dendrite loss (Kalrn-mutants; R01MH132586. PI: Grubisha, Co-I Hamm).
Winter 2023: Dr. Jordan Hamm was accepted into the American College of Neuropsychopharmacology (ACNP) as an Associate Member.
Winter 2023: Alice Van Derveer successfully defended their dissertation, titled ““Multisensory context processing in the cortical hierarchy and the impact of a schizophrenia-relevant gene mutation”. Congrats Dr. Van Derveer!
Fall 2023: See our new paper in Cell Reports, titled Top-down input modulates visual context processing through an interneuron-specific circuit”. This work demonstrates how top-down inputs to visual cortex modulate specific populations of neurons to support the detection of unexpected stimuli.
Summer 2023: See our new paper in Current Biology, titled “Robust multisensory deviance detection in the mouse parietal associative area”. This work extends our work on deviance detection to show how it manifest across higher cortical areas, in relation to simple vs complex stimuli. Results support a generalized predictive processing framework for understanding cortex.
Summer 2023: See our new paper in Cerebral Cortex, titled “Spatiotemporal dynamics across visual cortical laminae support a predictive coding framework for interpreting mismatch responses”. Here we detail a diligent analysis of the MUA, CSD, and time-frequency characteristics of mismatch negativity-like responses across V1 layers 1-5 during an oddball paradigm. Results suggest that prediction error-like responses involve gamma and theta-band responses in layer 2/3, and decreased beta-band responses in layer 1.
Fall 2022: The Hamm Lab was awarded a five year R01 from the National Eye Institute to study how cortical circuits predict the visual world and detect deviant stimuli in the environment. “Circuits for Deviance Detection in V1” (R01EY033950)
Spring 2022: The Hamm lab presented 3 posters at the Society for Biological Psychiatry! see here, here, and here.
Spring 2022: Dr. Hamm was awarded the GSU Dean’s Early Career Award.
Winter 2021: The Hamm lab was awarded a five year R01 from the National Institute of Mental Health to study how microglia shape the development of functional neuronal circuits. “Sex differences in microglia-neuron-circuit interactions in adolescence” (R01MH128176)
Fall 2021: The Hamm lab was awarded a two-year NARSAD young investigator grant from the Brain and Behavior Research Foundation (BBRF) for a protect titled: “Transcriptomic Profiling of a Novel Subtype of Cortical Neurons Selective for Sensory Prediction Errors”
Spring 2021: New paper from Dr. Hamm on the cortical circuit mechanisms of deviance detection in V1 in the Proceedings of the National Academy of Sciences (PNAS). See here!
Winter 2020: New review paper from the Hamm lab in Schizophrenia Bulletin drawing links between common abnormalities in SST+ interneurons, theta oscillations, and feed-back processing in schizophrenia. See here!
Winter 2020: Hamm lab published a new paper in J Neuroscience Methods provides a methodological overview and set of considerations for the analysis of multineuronal ensembles in optical imaging data.
Fall 2020: Hamm lab postdoc Dr. Jordan Ross has been awarded a prestigious BRAIN initiative NRSA F32 fellowship for the project “Large-scale monitoring of circuits for adaptation and novelty detection in primary visual cortex”
ABOUT THE HAMM LAB:
The neuroscience laboratory of Jordan Hamm was located at GSU’s Neuroscience Institute and the Center for Neuroinflammation and Cardiometabolic Diseases in the Petit Science Center in downtown Atlanta.
Petit Science Center in downtown Atlanta:
Hamm Lab 