coggroup March 2019

coggroup@mx1.psych.mcgill.ca

1 participants
3 discussions

[Coggroup] CRAM - This Friday - March 22nd
by Cognitive Research at McGill 22 Mar '19

22 Mar '19

Dear all, We are happy to announce the next CRAM (Cognitive Research at McGill) speaker this term. On Friday, March 22nd, Dr. Madeleine Sharp from Montreal Neurological Institute and Hospital will be speaking about a the role of dopamine in long-term memory (title and abstract below). The talk will span from 12pm-1pm in room 735 of 2001 McGill College Avenue. All are welcome! -- Dr. Madeleine Sharp, Montreal Neurological Institute and Hospital Role of dopamine in long-term memory: insights from Parkinson’s disease We are faced with a multitude of new learning opportunities daily and a constant stream of new information to store in our memory. Yet our capacity to remember is limited. A proposed solution for this challenge is that new learning is triaged—according to some factors—for entry into long-term memory. Accumulating evidence points to the presence of dopamine at the time of initial learning as one such factor that guides the strength and selectivity of long-term memory, but important questions remain. In patients with Parkinson’s disease, we directly investigated the role of dopamine in the strength and selectivity of memory for three forms of learning: value learning, episodic learning and motor learning. Specifically, we were interested in whether dopamine enhances overall memory or whether it selectively enhances memory for reward-associated information, and whether its effects emerge only over time, i.e. related to consolidation. We found differential effects of dopamine on these three forms of learning. Surprisingly, dopamine at the time of learning a motor sequence and of learning stimulus values did not influence the strength of long-term memory for that learning. In contrast, dopamine at the time of encoding images led to greater selectivity of memory towards reward-associated images. Importantly, this benefit of dopamine on memory selectivity did not emerge only after an offline consolidation period. Together, these findings suggest that dopamine may not play a global role in long-term memory consolidation and strength, but that its effects may differ depending on the form of memory and the underlying neural substrates. Warm regards, The CRAM Team (Mehrgol Tiv, Kevin da Silva Castanheira, Anna Mini Jos, & Azara Lalla) See our website for more information: https://www.mcgill.ca/psychology/events-colloquia-0/brownbag-series

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[Coggroup] CRAM – March 15
by Cognitive Research at McGill 15 Mar '19

15 Mar '19

Dear all, We are happy to announce the next CRAM (Cognitive Research at McGill) speaker this term. On Friday, March 15th, Dr. Eric Hehman from McGill Psychology will be speaking about a variant face space across social categories (title and abstract below). The talk will span from 12pm-1pm in room 735 of 2001 McGill College Avenue. All are welcome! -- Dr. Eric Hehman, McGill Psychology "A variant face space across social categories " Models of facial first impressions have consistently extracted at least two independent dimensions underlying face perception: Trustworthiness and Dominance. Though broadly used, these dimensional models were developed primarily with perceptions of own-group targets, and their generalizability to impressions across groups has yet to be examined. We investigated this question by building and testing models of face perception for impressions across different race and gender groups, implementing confirmatory factor analysis in a structural equation modeling framework, and then analyzing the underlying trait space using representational similarity analysis. Results indicate that current two- and three-factor models of face perception fit poorly across all groups. In Section 2, representational similarity analysis revealed that the space of trait impressions (i.e., correlations between trait-pairs such as ‘trustworthy’ and ‘dominant’ across all trait-pairs) differed significantly as a function of targets’ race and gender, and was partially explained by meta-perceptions of the stereotype content of different social groups (r = .219). Together, these findings indicate there may not be a "universal" face-space in which impressions are formed, but rather that this space flexibly shifts from group to group and from context to context. Warm regards, The CRAM Team (Mehrgol Tiv, Kevin da Silva Castanheira, Anna Mini Jos, & Azara Lalla) See our website for more information: https://www.mcgill.ca/psychology/events- colloquia-0/brownbag-series Please consider joining the coggroup list serve to receive day-off updates about CRAM and information about other cognition-related talks at McGill: http://mx0.psych.mcgill.ca/mailman/listinfo/coggroup (you can unsubscribe using the same link)

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[Coggroup] MOBI CRBLM Symposium
by Cognitive Research at McGill 14 Mar '19

14 Mar '19

Dear all, The Montreal Bilingual Brain Initiative (MOBI) in collaboration with the Centre for Research on Brain, Language and Music are presenting a full-day symposium on bilingualism. The symposium program includes Invited talks by Arturo E. Hernández (University of Houston) and Gigi Luk (McGill University) Oral presentations and discussion by MOBI trainees Data Blitz by MOBI students Full program, including times and titles for the individual talks, here. When: March 29, 2019, 9:00-5:00 Where: Jeanne Timmins Amphitheatre, MNI, 3801 Rue Université Lunch and refreshments will be provided to registered participants. Please register below. Accessibility: The MNI is wheelchair accessible. Please note that the main entrance has a few steps: there is a wheelchair accessible entrance on University Street north of the main entrance. Another wheelchair accessible entrance is in the loading area behind the building: to enter the loading area, turn into the driveway south of the main entrance. Participants are invited to make us aware of any barriers to their participation or any accommodations that we can provide. info(a)crblm.ca LINK: http://crblm.ca/mobi-crblm-symposium/

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coggroup March 2019