TY - JOUR PY - 2016// TI - Independent natural genetic variation of punishment- versus relief-memory JO - Biology letters A1 - Appel, Mirjam A1 - Scholz, Claus-Jürgen A1 - Kocabey, Samet A1 - Savage, Sinead A1 - König, Christian A1 - Yarali, Ayse SP - e0657 EP - e0657 VL - 12 IS - 12 N2 - A painful event establishes two opponent memories: cues that are associated with pain onset are remembered negatively, whereas cues that coincide with the relief at pain offset acquire positive valence. Such punishment- versus relief-memories are conserved across species, including humans, and the balance between them is critical for adaptive behaviour with respect to pain and trauma. In the fruit fly, Drosophila melanogaster as a study case, we found that both punishment- and relief-memories display natural variation across wild-derived inbred strains, but they do not covary, suggesting a considerable level of dissociation in their genetic effectors. This provokes the question whether there may be heritable inter-individual differences in the balance between these opponent memories in man, with potential psycho-clinical implications.

© 2016 The Authors.

Language: en

LA - en SN - 1744-9561 UR - http://dx.doi.org/10.1098/rsbl.2016.0657 ID - ref1 ER -