2025/2/10
【演講公告】2/26 荷蘭University of Amsterdam的Birte U. Forstmann教授和Leiden University的 Steven Miletić教授為大家帶來精彩演講
本系於2/26 週三邀請來自荷蘭University of Amsterdam的Birte U. Forstmann教授和Leiden University的 Steven Miletić教授為大家帶來一場演講包含兩個講題和個別的Q&
講題一：
Joint Modeling of the Deep Brain’s Form and Function
講者：Birte U. Forstmann教授
時間：2025-2-26（三）13:10-14:00含Q&A
地點：成大社會科學院北棟2樓心理學系階梯教室
演講語言：英文
演講摘要：
The subcortex has paramount importance for cognitive processes and is affected early in practically all neurodegenerative diseases. Yet, in the past decades, the human neurosciences have been dominated by a cortico-centric viewpoint, while the human subcortex, the Deep Brain, has remained relatively uncharted territory. It is notoriously more difficult to study with non-invasive structural and functional MRI. Its nuclei are small, numerous, and heterogeneous in (micro)structure and function, they lie deep in hard-to-image brain regions, and most of them have been poorly characterized even with quantitative ultra-high field MRI. According to the Federative Community on Anatomical Terminology (FCAT, 1998), there are approximately 455 subcortical structures; only a fraction of these are depicted in available standard MRI-atlases (Forstmann et al., 2017). My research aims to pivot the prevalent cortico-centric viewpoint to a whole-brain perspective on brain and cognition in health and disease. In this talk, I will present an overview of past, present, and potential future advances that enable us to start charting the terra incognita of the deep brain. To this end, I will show how multi-modal post-mortem data can be used to augment multi-modal in-vivo data in the atlasing and characterizing of small subcortical nuclei. I will introduce a novel Bayesian joint modeling of brain and behavior that explores the functional role of cortico-subcortical loops in adaptive decision making. Finally, I will explain how the combination of these methodologies will advance a powerful vision of a truly whole-brain conceptual understanding of cognition in the living human brain.
講題二：
Explaining multi-scale choice dynamics
講者：Steven Miletić教授
時間：2025-2-26（三）14:10-15:00含Q&A
地點：成大社會科學院北棟2樓心理學系階梯教室
演講語言：英文
演講摘要：
Decision making is often studied in highly controlled experimental paradigms where the environment is mostly stationary. This contrasts with the dynamic and non-stationary environments in which humans evolved, which necessitates continuous adaptation of behavior. My work proposes that adaptive mechanisms cause systematic fluctuations in choice performance across trials, both in non-stationary and in stationary choice environments. In this talk, I will present a set of experiments and formal models of choice behavior that integrate adaptive mechanisms. Through these, I will demonstrate that incorporating adaptive mechanisms in evidence-accumulation models is a promising way forward to understanding not only how choice behavior changes across time, but also why it changes.
講題一：
Joint Modeling of the Deep Brain’s Form and Function
講者：Birte U. Forstmann教授
時間：2025-2-26（三）13:10-14:00含Q&A
地點：成大社會科學院北棟2樓心理學系階梯教室
演講語言：英文
演講摘要：
The subcortex has paramount importance for cognitive processes and is affected early in practically all neurodegenerative diseases. Yet, in the past decades, the human neurosciences have been dominated by a cortico-centric viewpoint, while the human subcortex, the Deep Brain, has remained relatively uncharted territory. It is notoriously more difficult to study with non-invasive structural and functional MRI. Its nuclei are small, numerous, and heterogeneous in (micro)structure and function, they lie deep in hard-to-image brain regions, and most of them have been poorly characterized even with quantitative ultra-high field MRI. According to the Federative Community on Anatomical Terminology (FCAT, 1998), there are approximately 455 subcortical structures; only a fraction of these are depicted in available standard MRI-atlases (Forstmann et al., 2017). My research aims to pivot the prevalent cortico-centric viewpoint to a whole-brain perspective on brain and cognition in health and disease. In this talk, I will present an overview of past, present, and potential future advances that enable us to start charting the terra incognita of the deep brain. To this end, I will show how multi-modal post-mortem data can be used to augment multi-modal in-vivo data in the atlasing and characterizing of small subcortical nuclei. I will introduce a novel Bayesian joint modeling of brain and behavior that explores the functional role of cortico-subcortical loops in adaptive decision making. Finally, I will explain how the combination of these methodologies will advance a powerful vision of a truly whole-brain conceptual understanding of cognition in the living human brain.
講題二：
Explaining multi-scale choice dynamics
講者：Steven Miletić教授
時間：2025-2-26（三）14:10-15:00含Q&A
地點：成大社會科學院北棟2樓心理學系階梯教室
演講語言：英文
演講摘要：
Decision making is often studied in highly controlled experimental paradigms where the environment is mostly stationary. This contrasts with the dynamic and non-stationary environments in which humans evolved, which necessitates continuous adaptation of behavior. My work proposes that adaptive mechanisms cause systematic fluctuations in choice performance across trials, both in non-stationary and in stationary choice environments. In this talk, I will present a set of experiments and formal models of choice behavior that integrate adaptive mechanisms. Through these, I will demonstrate that incorporating adaptive mechanisms in evidence-accumulation models is a promising way forward to understanding not only how choice behavior changes across time, but also why it changes.