Pigeons can discriminate locations presented in pictures.
Pigeons form location concepts from photos and transfer to new views, proving stimulus-equivalence procedures work for complex spatial rules.
01Research in Context
What this study did
Honig et al. (1988) taught pigeons to pick the correct spot in color photographs. The birds saw pictures of places and had to peck the right location to get food.
The team then showed new photos of the same places. They wanted to know if the birds would still pick the right spot even when the view changed.
What they found
The pigeons learned fast. They pecked the correct place in every photo.
When brand-new pictures appeared, the birds still chose the right spot. This shows they formed a concept of 'location' rather than just memorizing each picture.
How this fits with other research
Siegel et al. (1970) had already shown pigeons can form a 'person-present' concept that transfers to new pictures. The 1988 study extends that work to spatial concepts.
Tracey et al. (1974) used colored shapes on keys. Their birds also learned to tell stimuli apart, but the cues were simple colors and forms. Photos are far richer, yet the pigeons still extracted the key feature—location.
Cohen et al. (1990) pushed pigeons to use five features at once. The 1988 paper shows that even with complex real-world photos, birds zero in on the relevant cue and ignore the rest.
Why it matters
If pigeons can extract location rules from messy photos, your learners can too. Use clear photos of real places when you teach prepositions, safety routes, or community navigation. Start with one angle, then add new views. The study says the concept will transfer, saving you trial time and building robust skills.
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02At a glance
03Original abstract
The present experiments were designed to teach pigeons to discriminate two locations represented by color photographs. Two sets of photographs were taken at two distinctive locations on a university campus. These sets represented several standpoints at each location. For the true-discrimination group, pictures from the two locations were differentially associated with reward; for the pseudodiscrimination group, half of the views from each location were arbitrarily but consistently associated with reward. The former group acquired the discrimination much more rapidly. These birds also showed good transfer to new views from the standpoints used in training and to a new standpoint at each location not used in training. In a second experiment, another group of pigeons could terminate any training trial by pecking an "advance" key. Three of 4 subjects used this option to reduce the duration of trials in which pictures from the negative location were presented. These data suggest that pigeons can integrate views shown in pictures into a "concept" of a location. The method used here may be the experimental analogue of a common, natural process by which animals learn to identify locations.
Journal of the experimental analysis of behavior, 1988 · doi:10.1901/jeab.1988.50-541