Human evaluative conditioning: acquisition trials, presentation schedule, evaluative style and contingency awareness.

Area of Science:

• Cognitive Psychology
• Behavioral Science
• Neuroscience

Background:

• Human Pavlovian conditioning involves signal and evaluative learning.
• Previous research on evaluative learning focused on demonstration and theory, leaving parameters unexplored.

Purpose of the Study:

• To investigate the impact of acquisition trials and stimulus presentation schedules on evaluative learning.
• To explore the role of individual evaluative style and contingency awareness in evaluative conditioning.

Main Methods:

• Utilized a neutral-liked/disliked picture pairing paradigm.
• Manipulated the number of acquisition trials (2, 5, 10, 20) and presentation schedules (blockwise, random).
• Assessed evaluative style (Feelers vs. Thinkers) and contingency awareness.

Main Results:

• Neutral-liked conditioning showed a quadratic relationship with trials; neutral-disliked conditioning increased linearly.
• Presentation schedules had unexpected effects on conditioning patterns.
• Evaluative style and contingency awareness were largely unrelated to conditioned valence shifts.

Conclusions:

• The number of acquisition trials critically influences evaluative conditioning outcomes differently for positive and negative stimuli.
• Findings suggest potential applications for therapeutic interventions targeting affective-behavioral disorders related to preferences.