Dr Gabrielle Weidemann

Dr Gabrille Weidemann

 

Biography

I received my PhD in 2005 from the University of New South Wales in the area of behavioural neuroscience. My PhD research was concerned with mathematical modelling of savings and recovery after extinction of a classically conditioned response in the rabbit. I have also collaborated on research projects examining the neurobiological and neuropharmacological mechanisms of learning and memory in animals with researchers at the University of New South Wales and the University of Michigan. 

More recently I have been conducting research examining associative learning and classical conditioning processes in human participants.  I have received funding for research projects examining the role of higher order cognitive processes in the acquisition and expression of eyeblink conditioning and the role that conscious expectancy plays in mediating the conditioned response in a variety of different conditioning paradigms. I am also interested in the role that associative learning and memory play in the acquisition of likes and dislikes.  In examining learning and memory I use a variety of different behavioural measures (e.g. reaction times) and physiological responses like skin conductance, heart rate, facial EMG, eyeblink responses, startle responses, and blood oxygenation level dependent (BOLD) signal in the brain measured using functional magnetic resonance imaging (fMRI).

Qualifications:

PhD in Behavioural Neuroscience, University of New South Wales, 2005

BSc (Hon) Psychology, University of New South Wales, 1995

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Areas of Research / Teaching Expertise

Associative Learning; Classical conditioning; Behavioural Neuroscience;

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Grants / Current Projects

ARC Discovery Project 2010-2012
“Testing the multiple learning system model with eyeblink conditioning in normal and amnesic participants”
Chief Investigator: Peter Lovibond and Gabrielle Weidemann

ARC Discovery Project 2008-2011
“The interaction between cognitive expectancy and conditioned responding in human eyeblink conditioning.”
Chief Investigator: Gabrielle Weidemann

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Awards and Recognition

Australian Research Council Postdoctoral Research Fellowship, 2008-2011

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Selected Publications

Mitchell, C.J., Wardle, S., Lovibond, Weidemann, G., & Chang, B.P.I. (in press). Do reaction times in the Perruchet effect reflect variations in the strength of an associative link? Journal of Experimental Psychology: Learning, Memory and Cognition.

Weidemann, G., Tangen, J. M., Lovibond, P. F., & Mitchell, C. J. (2009). Is Perruchet’s dissociation between eyeblink conditioned responding and outcome expectancy evidence for two learning systems? Journal of Experimental Psychology: Animal Behavior Processes, 35, 169-176.

Lovibond, P. F., Saunders, J. C., Weidemann, G., & Mitchell, C. J. (2008) Evidence for expectancy as a mediator of avoidance and anxiety in a laboratory model of human avoidance learning. The Quarterly Journal of Experimental Psychology, 61, 1199-1216

Weidemann, G., & Kehoe, E. J. (2005). Stimulus specificity of concurrent recovery in the rabbit nictitating membrane response. Learning & Behavior, 33, 343-362

Weidemann, G., & Kehoe, E. J. (2004). Recovery of the rabbit’s conditioned nictitating membrane response without direct reinforcement after extinction. Learning & Behavior, 32, 409-426

Kehoe, E. J., Weidemann, G., & Dartnall, S. (2004). Apparatus exposure produces profound declines in the rabbit’s conditioned nictitating membrane response to discrete conditioned stimuli. Journal of Experimental Psychology: Animal Behavior Processes, 30, 259-270.

McNally, G. P., Pigg, M., & Weidemann, G. (2004). Blocking, unblocking, and overexpectation of fear: A role for opioid receptors in the regulation of Pavlovian association formation. Behavioral Neuroscience, 118, 111-120

McNally, G. P., Pigg, M., & Weidemann, G. (2004). Opioid receptors in the midbrain periaqueductal gray regulate the extinction of Pavlovian fear conditioning. The Journal of Neuroscience, 24, 6912-6919

Neal, C. R., Vazquez, D., Weidemann, G., & Kabbaj, M. (2004). Effect of neonatal dexamethasone exposure on growth and neurological development in the adult rat. American Journal of Physiology – Regulatory, Integrative, and Comparative Physiology, 287, R375-R385

Weidemann, G., & Kehoe, E. J. (2003). Savings in classical conditioning in the rabbit as a function of extended extinction. Learning & Behavior, 31, 49-68.

Garcia, K. S., Mauk, M. D., Weidemann, G., & Kehoe, E. J. (2003). Covariation of alternative measures of responding in rabbit (oryctolagus cuniculus) eyeblink conditioning during acquisition training and tone generalization. Behavioral Neuroscience, 117, 292-303.

Kehoe, E. J., Palmer, N., Weidemann, G., & Macrae, M. (2000). The effect of feature-target intervals in conditional discriminations on acquisition and expression of conditioned nictitating membrane and heart-rate responses in the rabbit. Animal Learning & Behavior, 28, 80-91.

Weidemann, G., Georgilas, A., & Kehoe, E. J. (1999). Temporal specificity in patterning of the rabbit nictitating membrane response. Animal Learning & Behavior, 27, 99-107.

Kehoe, E. J., & Weidemann, G. (1999). Within-stimulus competition in trace conditioning of the rabbit's nictitating membrane response. Psychobiology, 27, 72-84.

Weidemann, G., & Kehoe, E. J. (1997). Transfer and counterconditioning of conditional control in the rabbit nictitating membrane response. The Quarterly Journal of Experimental Psychology, 50B, 295-316.

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