Go to this website: Memory Game (nbrosowsky.github.io)
Complete the Study phase of this recognition memory task
First you will view 96 pictures of human faces or houses; some will be inverted.
Next, complete the 96 trials of the memory test where you will need to choose the OLD picture (i.e., a picture you have seen before in the study phase) by clicking on the picture.
At the end of the 96 trials, you will see a graph of your results. Record your results, include the percentage of memory errors for all 4 trial types (face upright, face inverted, house upright, house inverted). You can also download your individual trial data to an excel sheet by clicking on the “save data as csv” box at the bottom of the results page.
Your results page should show a graph with four separate bars, like the one pictured below:
As you experienced, inversion impairs the perception and recognition of faces.
Interestingly, inversion affects faces more than it affects the perception/recognition of non-facial objects. This effect can be seen in the difference in the percentage of memory errors for upright vs. inverted faces and upright and inverted houses; most often, subjects show very little difference in their memory errors for the houses, regardless of whether they are inverted, but show more memory errors for inverted faces compared upright faces.
Part 2: Main Post
In this week’s discussion…
Hypothesize why faces are perceived and experienced as “special” stimuli.
Discuss, the question, “Why do you think our “normal” object recognition processes have such difficulty with inverted faces?”
Contemplate — We’re quite good at perceiving faces, and we can recognize hundreds of faces. At the same time, people are not particularly reliable eyewitnesses. How might you reconcile our prowess at face perception and recognition with our inability to identify perpetrators of crimes?
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