Wundt was the first to open a lab designated to the scientific study of psychological enquiry under controlled conditions, facilitating accurate measurements and replication
focus was on trying to understand psychological processes of perception and structuralisms rather than philosophical or biological processes
however, the validity of introspection has difficulties as many aspects of our minds are unconscious so may have little accuracy
he later recognised that higher mental processes were hard to study using his procedures, this encouraged others to look for more appropriate methods, paving the way for approaches such as scanning
however, introspection is still used today I areas eg. therapy and studying emotional states, demonstrating its value
research used experience sampling which is used for gathering self reports of behaviour and emotion as they occur in participants natural environment and found a link between the experience of interest and well being