ABA Fundamentals

Toward a functional analysis of delusional speech and hallucinatory behavior.

Layng et al. (1984) · The Behavior analyst 1984
★ The Verdict

Psychotic speech is operant behavior; change the contingency and the symptom can shift.

✓ Read this if BCBAs working with adults who report hallucinations or fixed false beliefs.
✗ Skip if Clinicians only treating medical-only models of psychosis.

01Research in Context

01

What this study did

Layng et al. (1984) asked a bold question: What if delusional talk and hallucinations are just operant behaviors?

They sketched a plan. Map the pay-offs that keep the words flowing. Then swap the pay-offs to shape new, safer talk.

No lab rooms or tally sheets here—this is a map for you to draw in the real world.

02

What they found

The paper claims psychotic speech is not a broken brain leaking. It is learned, reinforced, and can be un-learned.

Give a different reinforcer—attention, escape, sensory feedback—and the form of the talk can change.

03

How this fits with other research

Blackman (1970) set the stage. He said all words are operants. Layng et al. (1984) simply walked that stage into a psychiatric ward.

Fryling (2017) later tested how separate the verbal operants really are. His caution matters: if mands and tacts blur, your first guess about which contingency to shift may need tweaking.

Becker et al. (2022) push the same logic toward aphasia. Together the papers form one long thread—behavior analysis can tackle any atypical language once you find the contingency.

04

Why it matters

You already change tantrums and toe-walking with reinforcement swaps. This paper says you can do the exact same with voices and fixed false beliefs. Start by asking: What does the client get when the hallucination speaks? Attention, staff withdrawal, sensory stimulation? Give that same payoff for reporting reality, then thin the schedule. Your data sheet stays the same—only the topography is new.

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During intake, ask what happens right after the client voices a delusion—then plan a replacement response that earns the same consequence.

02At a glance

Intervention
not applicable
Design
theoretical
Population
not specified
Finding
not reported

03Original abstract

An approach to a functional analysis of delusional speech and hallucinatory behavior is described and discussed using concepts found in Goldiamond's (1975a and 1984) nonlinear contingency analysis and Skinner's Verbal Behavior (1957). This synthesis draws upon and concords with research from the animal laboratory, with the extensive experimental literatures on stimulus control and signal detection theory, and with our own clinical experiences.In this formulation, delusional speech and hallucinatory behavior are viewed as successful operants. Accordingly, we argue that such behaviors can be considered adaptive and rational, rather than maladaptive and irrational, when analyzed within a model of consequential governance that includes alternative sets of contingencies. Several clinical examples are offered to illustrate both analytic procedures and the design of systemic treatment programs based upon a behavioral contingency analysis derived from a natural science of behavior. Throughout, we emphasize the consequential governance of these clinically important classes of behavior, in contrast to other approaches which suggest formal similarities to operant verbal behavior but largely ignore the role of consequential contingencies.

The Behavior analyst, 1984 · doi:10.1007/BF03391897