Forensic psychology
Forensic psychology

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Forensic psychology

2.1 Flicker paradigm

A common reaction to reading about change blindness is to think that you would be different, that you would definitely notice if the identity of the person you were speaking to changed.

Of course, seven of the 15 participants in the Simons and Levin (1998) study did notice the change in identity. That change was very obvious, but when a more subtle change was employed in the Nelson et al. (2011) study, only 4.5% of participants spotted it.

Activity 1 Spot the differences

Timing: Allow about 5 minutes

Changing the identity of a researcher or actor is a fairly obvious change, but change blindness can also occur with smaller details. The ‘Flicker paradigm’ video contains pairs of images, shown one after the other, that differ by several details. Can you spot the differences? Make a note of how many differences you can spot.

See if you can work out why spotting the difference is so tricky?

Download this video clip.Video player: ou_futurelearn_psychology_vid_1009.mp4
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Transcript

TEXT ON SCREEN:

You are about to see three pairs of images that, following a briefly presented flicker, will then be replaced by an almost identical image.
Can you spot what changes?
Image 1.
Note down any changes that you have noticed.
Image 2.
Note down any changes that you have noticed.
Image 3.
Note down any changes that you have noticed.
End of video. Please proceed to the next step.
End transcript
 
Interactive feature not available in single page view (see it in standard view).

Discussion

How many changes did you spot in the Flicker paradigm? The next video reveals the changes in the images.

Download this video clip.Video player: ou_futurelearn_psychology_vid_1051.mp4
Skip transcript

Transcript

TEXT ON SCREEN

How well did you do?
Now view the three images with no intervening flicker.
Image 1
Image 2
Image 3
End of video.
End transcript
 
Interactive feature not available in single page view (see it in standard view).
FP_1

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