No effect of hippocampal lesions on stimulus-response bindings.
MetadataShow full item record
Henson, R., Horner, A. J., Greve, A., Cooper, E., Gregori, M., Simons, J., Erzinçlioğlu, S., et al. (2017). No effect of hippocampal lesions on stimulus-response bindings.. Neuropsychologia, 103 106-114. https://doi.org/10.1016/j.neuropsychologia.2017.07.024
The hippocampus is believed to be important for rapid learning of arbitrary stimulus-response contingencies, or S-R bindings. In support of this, Schnyer et al. (2006) (Experiment 2) measured priming of reaction times (RTs) to categorise visual objects, and found that patients with medial temporal lobe damage, unlike healthy controls, failed to show evidence of reduced priming when response contingencies were reversed between initial and repeated categorisation of objects (a signature of S-R bindings). We ran a similar though extended object classification task on 6 patients who appear to have selective hippocampal lesions, together with 24 age-matched controls. Unlike Schnyer et al. (2006), we found that reversing response contingencies abolished priming in both controls and patients. Bayes Factors provided no reason to believe that response reversal had less effect on patients than controls. We therefore conclude that it is unlikely that the hippocampus is needed for S-R bindings.
Hippocampus, Humans, Analysis of Variance, Association Learning, Pattern Recognition, Visual, Judgment, Reaction Time, Neuropsychological Tests, Adult, Aged, Middle Aged, Female, Male, Repetition Priming
James S McDonnell Foundation (220020333)
Medical Research Council (MC_UU_00005/8)
Medical Research Council (MC_U105579226)
Embargo Lift Date
External DOI: https://doi.org/10.1016/j.neuropsychologia.2017.07.024
This record's URL: https://www.repository.cam.ac.uk/handle/1810/274751
Attribution 4.0 International
Licence URL: http://creativecommons.org/licenses/by/4.0/
Recommended or similar items
The following licence files are associated with this item: