Protocol to request
            
                Quantification of effects of feature-based attention and stimulus contrast
                
                
            
        
        
            
                Research article
            
            
                Dissociable laminar profiles of concurrent bottom-up and top-down modulation in the human visual cortex
                
            
            
            
                Samuel JD Lawrence et al.
            
            
                DOI: 10.7554/eLife.44422