eva‎luation of Monkey's Cortical Information during Visual Stimulus Discrimination Task

9/29/2025 12:00:00 AM

In perceptual decision-making tasks, several brain regions play critical roles in encoding sensory inputs, task-relevant information, and choice-related signals. This study examines a dataset with simultaneous neural recordings from six key cortical regions: the middle temporal area (MT), visual area V4, inferior temporal cortex (IT), lateral intraparietal area (LIP), prefrontal cortex (PFC), and frontal eye fields (FEF) in monkeys performing a visual discrimination task. Our analysis focuses on the progression of information related to visual features and decision-making across these regions. By comparing our findings to the information flow observed during visual categorization tasks, we aim to understand how the specific demands of a task modulate the roles of distinct brain regions. In summary, our findings highlight the complex and adaptive nature of neural processing during visual discrimination tasks. Dynamic interactions among V4, LIP, FEF, and MT suggest a finely-tuned network capable of integrating sensory information, enforcing task rules, and guiding motor responses. As the task becomes more demanding—such as in visual discrimination versus categorization—sensory information processing becomes more selective to task rules, with LIP and FEF playing increasingly prominent roles to ensure accurate decision-making. This study enhances our understanding of how different brain areas coordinate during perceptual decision-making and how neural circuits adapt to the unique demands of complex tasks.

تصميم گيري , وظيفه حسي حركتي انعطاف پذير , نواحي بينايي , قشرپيشاني , گذار اطلاعات حسي-حركتي

Decision-making , Flexible sensorimotor task , Visual areas , Prefrontal cortex , Information flow

Fatemeh Balapour

Mohammad Reza Daliri