The Academic Salon of the Department of Psychology and Cognitive Sciences is held every Thursday afternoon. Welcome to all students and faculty members from every department!
Time: April 17 (Thursday) afternoon 14:30
Location: Room 1110, 11th floor, Lv Dalong Building
Department of Psychology and Cognitive Sciences WANG Xiaoqin's Research Group Academic Salon
Report One
Comparative Study of Meta-Learning Behavior Between Humans and Marmosets Based on Dynamic Maze
Presenter: Guozheng Huang
Content:
Meta-learning (also known as "learning to learn") refers to the ability to quickly master new tasks based on similar rules, which exists widely in multiple species including primates and rodents. This study designed dynamic mazes with increasing difficulty and conducted parallel human screen maze experiments and marmoset physical maze experiments. By fitting and clustering the behavioral trajectories and learning patterns of the two species, it revealed significant commonalities and differences between humans and marmosets in the meta-learning process. These findings provide new perspectives for studying the developmental evolution of human learning abilities and establish a new paradigm for quantitatively comparing meta-learning processes between humans and non-human primates.
Report Two
Study of "Melody" Receptive Fields in Marmoset Auditory Cortex Neurons
Presenter: Xingjian Liu
Content:
Marmosets are small non-human primates that are widely used in auditory neurophysiological research due to their developed vocal communication behaviors. The most basic characteristic of auditory neurons is their "frequency receptive field," meaning each neuron has its preferred sound stimulus frequency. Based on frequency selectivity, previous research has found that marmoset auditory cortex neurons' responses to sounds are also modulated by other sound stimuli played simultaneously or sequentially, manifesting as "combination selectivity." In music, several sounds played sequentially form melodies, and a simple melody can be described using the space formed by intervals between adjacent notes. This study employs single-neuron electrophysiological methods, using three-tone melody stimuli to describe the combination selectivity of marmoset auditory cortex neurons in interval space and explore the neural encoding mechanisms of melody.
Report Three
Neuroaesthetics in Real Concert Halls: Near-Infrared-EEG Study of Brain Activity in Piano Improvisers and Audiences
Presenter: Han Wang
Content:
Music is a unique and fascinating phenomenon in human culture, and how music affects people's emotions, cognition, and physiological activities through the brain is a question worth exploring. Traditional music brain science research mostly focuses on auditory paradigms in laboratory environments. Our team has pioneered research on musical performance and appreciation in real concert hall environments, attempting to answer questions about musical aesthetics, musical creation, and musical performance by recording neural activity and physiological data of musicians and audiences at concert venues. Student Han Wang will report preliminary results from the analysis of near-infrared and EEG data from Teacher Kong Xiangdong and audiences during the Four-Sound Music Improvisation Therapeutic Experiment by pianist Kong Xiangdong.
