Electrophysiological analysis of stimulus variables in equivalence relations

Recently, electrophysiological measures have been used to evaluate the functional overlap between semantic relations and laboratory-defined equivalence relations with abstract stimuli. Several studies using semantic judgment procedures have shown that accompanying EEG-measured neural activity for stimulus pairs from equivalence classes is very similar to that of word pairs from participants' native language. However, those studies often included pronounceable elements (e.g., written nonsense syllables) as at least one member of the experimentally defined classes. The present study conducted EEG studies that contrasted classes with and without such elements. Two groups of undergraduate students completed a matching-to-sample procedure to establish 3 4-member equivalence classes. For Group 1, samples and comparisons were pronounceable pseudowords and abstract figures. For Group 2, the matching-to-sample stimuli were abstract figures only. EEG data recorded during the semantic judgment tasks showed waveform patterns compatible with prior studies of semantic relations in Group 1 but not in Group 2.     

Assessment of the Relatedness of Equivalent Stimuli Through a Semantic Differential

The Psychological Record - If stimulus equivalence is a model of meaning, abstract stimuli should acquire the meaning of meaningful stimuli equivalent to them. In Experiment 1, college students...     

Equivalent Stimuli are more Strongly Related after Training With Delayed Matching Than after Simultaneous Matching: A Study Using the Implicit Relational Assessment Procedure (IRAP)

The Psychological Record - Bortoloti and de Rose (2009) found evidence that the level of functional transfer is higher in equivalence classes generated by delayed matching to sample (DMTS) than in...     

Dolls are for Girls and Not for Boys: Evaluating the Appropriateness of the Implicit Relational Assessment Procedure for School-Age Children

The Psychological Record - The Implicit Relational Assessment Procedure (IRAP) has been used for assessing implicit attitudes across different domains. The current study aimed to investigate...