Cf_mos_and_sds Motivating Operations and Discriminative Stimuli
Your name
Capella University
PSY5280: Advanced Concepts in Applied Behavior Analysis
Dr. Lisa Sabato
Due date
, 2
Motivating Operations and Discriminative Stimuli
Similarities (3): Differences (3)
Both are antecedent variables, A DS is a stimulus that can reinforce a
implying that they act as behavior behaviour due to providing linkage to
stimuli, reinforcing the occurrence of the differential accessibility of an
a specific behaviour (Poling, effective motivator for the behaviour.
Lotfizadeh & Edwards, 2019). On the contrary, motivating operations
Both are operant variables, to imply (MOs) provide the differential
that they are both catalysts of strengthening and alter the value of
behavioral modification to reinforce or reinforcers to the behavior
maintain behavior (Cooper, Heron & (Miltenberger, 2024).
Heward, 2019). DS signals the availability of
They both elicit behavior-altering reinforces, and discriminate
effects. That is, they influence the appropriately (providing a cue to
current frequency of behavior signal effective reinforcement for a
reinforced by a specific stimulus behavior). In contrast, MO does not
(Miltenberger, 2024). prompt any signs for the availability
of reinforcement (Cooper, Heron &
Heward, 2019).
MO accounts for satiation or
deprivations for a particular reinforcer,
whereas DS alters the level of
motivation to the stimulus, object, or
event by signaling the availability of
reinforcement to getting or acquiring it
(Poling, Lotfizadeh & Edwards, 2019.
MO’s and Sd’s Working Together
Example 1
MO: Feeling hungry
SD: Seeing a sandwich signpost