Three experiments were run revealing that peripheral cues exert an ale
rting and orienting effect. Novel is the finding that peripheral cues
induce a (hidden) tendency to respond to the cued side, which interact
s with the response tendency elicited by the subsequent following targ
et. Compatible S-R mappings revealed either a reversed or no response
tendency in cue conditions as compared to uncued conditions. Incompati
ble mappings mostly showed a decrease in response tendencies under inf
luence of the peripheral cue, An increase of the interval between the
cue and the target up to 500 ms resulted in a return to the baseline c
ondition (without cue). The findings for the compatible mappings may b
e interpreted in terms of an extra recoding operation that was induced
by peripheral cues. Inconsistencies found for incompatible S-R mappin
gs might be attributed to the dual presence of recoding operations on
account of the cue and the target.