First lab Opened by Wilhelm Wundt in Leipzig, Germany in 1879.
Wundt's work created a new, scientific psychology now distinct from philosophy.
Wundt and his co-workers recorded their own conscious thoughts and broke them down into thoughts, images and sensations.
All introspections were recorded under strictly controlled conditions using the same stimulus every time (such as a ticking metronome).
The same standardised instructions were issued to all participants, and this allowed procedures to be repeated in exactly the same way (replicated) every single time.
Wundt relied on participants own experiences and therefore can be criticised for being unscientific
one strength of Wundt's work is it was highly controlled therefore extraneous variables were not an issue