Sensitivity to Punishment and Sensitivity to Reward Questionnaire (SPSRQ)

1. Abstract

The Sensitivity to Punishment and Sensitivity to Reward Questionnaire (SPSRQ) is a 48-item self-report psychometric instrument designed to measure the two fundamental neurobiological dimensions postulated in Jeffrey Alan Gray’s Reinforcement Sensitivity Theory (RST): the Behavioral Inhibition System (BIS) and the Behavioral Approach System (BAS). Developed by Rafael Torrubia, César Ávila, Javier Moltó, and Xavier Caseras in 2001, the instrument operationalizes these dimensions as Sensitivity to Punishment (SP) and Sensitivity to Reward (SR), respectively. The SPSRQ comprises two orthogonal subscales of 24 items each, formatted using a dichotomous response structure (Yes / No). The Sensitivity to Punishment subscale measures individual differences in the propensity to experience anxiety, passive avoidance, cognitive worry, and behavioral inhibition in response to conditioned aversive stimuli, novel contexts, and threat of non-reward or punishment. Conversely, the Sensitivity to Reward subscale captures generalized reward responsivity, sensation seeking, pursuit of appetitive reinforcers, positive social attention, and impulsivity under cues of potential reward.

Psychometric evaluations across diverse cross-cultural, clinical, and non-clinical cohorts consistently demonstrate robust internal consistency (Cronbach’s alpha typically ranging from .82 to .87 for SP and .75 to .83 for SR) and moderate-to-high test-retest reliability over intervals ranging from 3 to 12 months (r = .75 to .89). Confirmatory and exploratory factor analyses affirm a robust two-factor orthogonal architecture reflecting Gray’s original neuropsychological models, distinguishing the SPSRQ from other measures such as the Carver and White BIS/BAS scales by emphasizing concrete conditioning situations over abstract affective self-descriptions. The instrument has established profound criterion-related, convergent, and discriminant validity across neuropsychological paradigms, behavioral economic tasks, psychopathology assessments (including mood disorders, anxiety disorders, substance use disorders, and psychopathy), and neuroimaging investigations. This comprehensive review synthesizes the empirical evidence, theoretical grounding, psychometric properties, and structural utility of the SPSRQ.

2. Keywords

Sensitivity to Punishment, Sensitivity to Reward, SPSRQ, Reinforcement Sensitivity Theory, Jeffrey Gray, Behavioral Inhibition System, Behavioral Approach System, Psychometrics, Trait Anxiety, Impulsivity

3. Authors

The Sensitivity to Punishment and Sensitivity to Reward Questionnaire was developed by a team of prominent behavioral researchers and psychophysiologists based primarily at the Autonomous University of Barcelona (Universitat Autònoma de Barcelona) and Jaume I University (Universitat Jaume I) in Spain:

• Rafael Torrubia, Ph.D. — Department of Psychiatry and Legal Medicine, Institute of Neurosciences, Universitat Autònoma de Barcelona, Bellaterra, Spain. Dr. Torrubia’s research focuses on the neurobiology of personality, behavioral inhibition, anxiety, and psychopathic traits.
• César Ávila, Ph.D. — Department of Basic and Clinical Psychology and Psychobiology, Universitat Jaume I, Castellón de la Plana, Spain. Dr. Ávila specializes in cognitive neuroscience, functional neuroimaging (fMRI) of motivational systems, and individual differences in reward processing.
• Javier Moltó, Ph.D. — Department of Basic and Clinical Psychology and Psychobiology, Universitat Jaume I, Castellón de la Plana, Spain. Dr. Moltó is renowned for his work on psychopathy, emotion modulation of the acoustic startle reflex, and affective psychophysiology.
• Xavier Caseras, Ph.D. — Institute of Neurosciences, Universitat Autònoma de Barcelona, Spain; currently at the MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, United Kingdom. Dr. Caseras investigates the neurocognitive and genetic markers of mood disorders and motivational vulnerabilities.

4. Purpose

The primary purpose of the SPSRQ is to operationalize and quantify the trait sensitivities of the central neurobiological systems responsible for processing reinforcing environmental signals, as conceptualized in Reinforcement Sensitivity Theory. Prior to the publication of the SPSRQ, psychological assessment relied heavily on general instruments such as the Eysenck Personality Questionnaire (EPQ) to approximate Gray’s dimensions through rotation of Neuroticism and Extraversion axes, or on Carver and White’s (1994) BIS/BAS Scales. Torrubia and colleagues argued that existing scales often conflated primary reinforcement mechanisms with secondary emotional reactions or lacked ecological specificity. The SPSRQ was specifically designed to bridge the gap between laboratory conditioning experiments and self-report personality assessment by embedding contextual cues of punishment, threat, reward, and incentives directly within the questionnaire items.

In clinical psychology and psychiatry, the SPSRQ serves as a diagnostic and heuristic instrument for dissecting underlying vulnerability dimensions in psychopathology. Elevated scores on the Sensitivity to Punishment subscale correlate strongly with internalizing disorders, including generalized anxiety disorder, social anxiety disorder, obsessive-compulsive symptomatology, and major depressive disorder. High SP reflects chronic hypervigilance, distress aversion, and an amplified conflict-detection mechanism. Conversely, the Sensitivity to Reward subscale informs the clinical understanding of externalizing pathology, such as substance abuse, gambling disorder, attention-deficit/hyperactivity disorder (ADHD), bipolar mania, and antisocial behavior. When paired together, the dual-system profiles provide clinical insight: for instance, high SR coupled with low SP typifies classic primary psychopathy and rash disinhibition, whereas high SR accompanied by high SP frequently predicts emotional dysregulation, borderline personality traits, and binge-eating disorders.

In experimental and cognitive neuroscience, the SPSRQ facilitates participant stratification across laboratory paradigms involving monetary incentive delay (MID), probabilistic reversal learning, fear-potentiated startle, and response extinction. Researchers utilize the scale to validate neuroimaging findings, confirming that baseline variations in SP and SR predict differential activation in cortical and subcortical structures such as the amygdala, anterior cingulate cortex, nucleus accumbens, and orbitofrontal cortex during anticipatory reward and loss phases.

5. Psychological Construct

The SPSRQ operationalizes personality along two independent, orthogonal neurobehavioral dimensions rooted in physiological learning mechanisms: Sensitivity to Punishment (SP) and Sensitivity to Reward (SR).

Sensitivity to Punishment (SP)

The Sensitivity to Punishment subscale (comprising 24 items) captures the operating threshold and reactivity of the Behavioral Inhibition System (BIS). Individuals exhibiting elevated SP traits are exceptionally reactive to conditioned aversive stimuli, novel environmental configurations, ambiguous social contexts, and signals of non-reward or imminent punishment. This psychological construct is characterized by:

• Passive Avoidance and Behavioral Arrest: A pronounced tendency to freeze, hesitate, or avoid situations where there is any perceived risk of failure, social reprimand, or loss.
• Cognitive Hypervigilance and Worry: Intrusive concerns regarding physical harm, illness, financial distress, or social embarrassment (e.g., dwelling on mistakes, worrying about what others think).
• Interpersonal Sensitivity: Apprehension regarding authority figures, fear of negative evaluation, fear of asking for help, and avoidance of public speaking or social scrutiny.

Rather than merely measuring generic negative affectivity or depression, SP measures an active inhibitory brake that disrupts ongoing appetitive behavior when potential conflict or danger is detected.

Sensitivity to Reward (SR)

The Sensitivity to Reward subscale (comprising 24 items) captures individual differences in the sensitivity and responsiveness of the Behavioral Approach System (BAS), also referred to as the Behavioral Activation System. Elevated SR traits reflect a persistent orientation toward appetitive stimuli, rewarding goals, and positive reinforcers. Key facets captured by the construct include:

• Reward Responsiveness: Heightened subjective pleasure and behavioral activation in response to praise, awards, financial gains, and overt recognition.
• Drive and Goal Pursuit: The expenditure of substantial time and energy to secure valued incentives and an inclination to take on challenging tasks to achieve goals.
• Impulsive Reward Seeking and Sensation Seeking: Willingness to engage in risky, novel, or dangerous behaviors for the sheer pleasure or thrills they provide, along with difficulty resisting immediate gratification (e.g., compulsive spending, seeking fast riches).
• Social Approbation Seeking: Striving to be the center of attention, displaying accomplishments, and attempting to impress peers.

6. Theoretical Framework

The conceptual core of the SPSRQ is situated within Jeffrey Alan Gray’s Reinforcement Sensitivity Theory (RST; Gray, 1970, 1982, 1987; Gray & McNaughton, 2000). Gray formulated RST as a neuropsychological alternative to Hans Eysenck’s biological model of personality. While Eysenck postulated that personality is structured around the major descriptive axes of Extraversion (E) and Neuroticism (N), anchored in the ascending reticular activating system and limbic system, Gray demonstrated that the primary causal axes of mammalian behavior are rotated approximately 30 degrees relative to E and N, yielding two foundational systems:

1. The Behavioral Inhibition System (BIS): Hypothesized to encompass the septo-hippocampal system, its monoaminergic afferents from the brainstem, and projections to the frontal cortex. The BIS functions as a conflict detector, activated whenever there is concurrent goal conflict (e.g., approach-avoidance, avoidance-avoidance, or approach-approach). Upon activation, the BIS inhibits ongoing motor programs, heightens arousal and environmental scanning, and engenders the subjective state of anxiety. Within the SPSRQ, the SP subscale directly taps this functional network.
2. The Behavioral Approach System (BAS): Comprising dopaminergic pathways (mesolimbic and mesocortical systems originating in the ventral tegmental area and projecting to the nucleus accumbens, striatum, and ventromedial prefrontal cortex). The BAS mediates appetitive motivation, organizing behavior toward unconditional rewards, safety signals, and conditioned incentives. Elevated BAS activity manifests subjectively as hope, exhilaration, and impulsivity, reflected directly in the SR subscale.
3. The Fight-Flight-Freeze System (FFFS): Mediated by the periaqueductal gray and medial hypothalamus, governing unconditioned escape, active avoidance, or defensive aggression in response to immediate, proximal threat (fear rather than anxiety). In the original formulation under which the SPSRQ was developed (Gray, 1987), FFFS and BIS functions were closely intertwined regarding punishment sensitivity.

Unlike Carver and White’s BIS/BAS scales, which operationalized BAS into three distinct sub-components (Reward Responsiveness, Drive, and Fun Seeking) and phrased BIS items primarily as emotional reactions to anticipated negative outcomes (e.g., "I worry about making mistakes"), Torrubia and colleagues structured SPSRQ items around ecological situations depicting standard conditioning contingencies. The SPSRQ explicitly queries behaviors in the presence of specific reinforcers (e.g., "Do you often do things to be praised?") or punishers (e.g., "Are you easily embarrassed in social situations?"), aligning the questionnaire directly with laboratory-based learning and behavioral paradigms.

7. Validity

The construct, convergent, discriminant, and predictive validities of the SPSRQ have been extensively examined across numerous empirical studies.

Convergent and Discriminant Validity

Torrubia et al. (2001) demonstrated robust convergence between SPSRQ subscales and corresponding personality inventories. The Sensitivity to Punishment subscale correlates strongly with measures of trait anxiety and neuroticism:

• Correlation with Eysenck’s Neuroticism (EPQ-N): r = .60 to .69.
• Correlation with Spielberger’s State-Trait Anxiety Inventory (STAI-Trait): r = .65 to .73.
• Correlation with Carver & White’s BIS scale: r = .55 to .66.
• Discriminant correlation with Eysenck’s Extraversion (EPQ-E): negative to near zero (r = -.18 to -.28), confirming that SP does not simply mirror introversion.

The Sensitivity to Reward subscale correlates significantly with dimensions of impulsivity, sensation seeking, and approach motivation:

• Correlation with Carver & White’s total BAS scale: r = .45 to .58 (correlating highest with BAS-Drive and BAS-Fun Seeking).
• Correlation with Zuckerman’s Sensation Seeking Scale (SSS-V): r = .40 to .52 (particularly Thrill and Adventure Seeking and Experience Seeking).
• Correlation with Eysenck’s Extraversion: r = .38 to .48.
• Discriminant correlation with Eysenck’s Neuroticism: negligible (r = -.08 to .06), demonstrating strong orthogonality from negative emotionality.

Predictive and Experimental Validity

Experimental studies using behavioral tasks have confirmed the predictive validity of the SPSRQ:

• Conditioning and Avoidance Learning: Ávila (2001) verified that high SP participants show superior passive avoidance learning under punishment contingencies and slower extinction rates when punishment is anticipated.
• Reward Facilitation: High SR participants exhibit accelerated reaction times and elevated response rates in selective attention and monetary reward tasks, exhibiting a pronounced response bias toward high-payoff options even when associated with poor long-term probabilities.
• Psychophysiological and Neuroimaging Findings: Startle reflex modulation paradigms (Caseras et al., 2006) demonstrate that high SP individuals show potentiated eye-blink electromyographic (EMG) startle responses during anticipation of aversive stimuli. Functional magnetic resonance imaging (fMRI) studies show that individual differences in SR predict elevated blood-oxygen-level-dependent (BOLD) responses in the ventral striatum during reward anticipation.

8. Reliability

The SPSRQ demonstrates strong internal consistency and temporal stability across diverse populations and languages (including the original Spanish, English, French, German, Italian, and Chinese adaptations).

Internal Consistency

In the original normative sample of 1,222 university students evaluated by Torrubia et al. (2001), the internal consistency estimates were:

• Sensitivity to Punishment (SP): Cronbach’s alpha (α) = .83 for females, .82 for males, with combined samples yielding α = .84. Subsequent large-scale investigations report alpha values consistently situated between .81 and .87.
• Sensitivity to Reward (SR): Cronbach’s alpha (α) = .78 for females, .75 for males, with combined samples yielding α = .78 to .83. Across international translations, SR alphas consistently hover around .76 to .82, which is notably robust for a multidimensional appetitive construct.

Test-Retest Reliability

Temporal stability assessments have confirmed that the SPSRQ measures stable personality traits rather than transient psychological states:

• At a 3-month retest interval, Torrubia et al. (2001) reported test-retest coefficients of r = .89 for SP and r = .87 for SR.
• Over extended 1-year follow-up periods in longitudinal studies (e.g., Caseras et al., 2007), stability coefficients remained high (r = .78 to .82 for SP; r = .74 to .79 for SR), confirming strong temporal stability.

9. Factor Analysis

The structural dimensionality of the SPSRQ was initially identified through exploratory factor analysis (EFA) and later corroborated through extensive confirmatory factor analysis (CFA).

Exploratory Factor Analysis (EFA)

During scale construction, Torrubia and colleagues started with a pool of 134 candidate items administered to a developmental sample. Principal Axis Factoring followed by Oblimin and Varimax rotations consistently yielded a dominant two-factor solution. Scree plot analyses clearly demarcated two primary eigenvalues accounting for the bulk of common variance. The first factor was clearly defined by items addressing fear of failure, social anxiety, hesitation, and vulnerability to punishment (SP). The second factor gathered items assessing active reward seeking, social ambition, thrill-seeking, and susceptibility to positive incentives (SR). Cross-loadings were minimal, confirming the structural orthogonality of the two dimensions (factor intercorrelation r was near zero, typically between -.05 and .05).

Confirmatory Factor Analysis (CFA)

Subsequent psychometric examinations using CFA (e.g., O’Connor, 2002; Cogswell et al., 2006; Cooper & Gómez, 2008) have evaluated the fit of the two-factor orthogonal model:

• In typical adult and undergraduate samples, the two-factor model demonstrates acceptable goodness-of-fit indices (RMSEA ≤ .055, CFI ≥ .90, TLI ≥ .89, SRMR ≤ .06).
• Alternative models, such as single-factor models or three-factor models dividing SR into separate sensation-seeking and praise-seeking dimensions, have been evaluated. While some researchers have noted that SR contains separable sub-facets (e.g., reward responsivity, social status pursuit, and impulsive thrill-seeking), hierarchical CFA models confirm that a higher-order overarching SR factor effectively accounts for these lower-order dynamics without sacrificing construct coherence.

10. Instrument / Measurement Tool

• Instrument Name: Sensitivity to Punishment and Sensitivity to Reward Questionnaire (SPSRQ)
• Authors: Rafael Torrubia, César Ávila, Javier Moltó, and Xavier Caseras (2001)
• Constructs Assessed: Behavioral Inhibition System (Sensitivity to Punishment) and Behavioral Approach System (Sensitivity to Reward)
• Item Count: 48 items
• Subscales:
  • Sensitivity to Punishment (SP): 24 items (Items 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47)
  • Sensitivity to Reward (SR): 24 items (Items 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48)
• Response Format: Dichotomous (Yes / No)
• Scoring Procedures:
  • Each affirmative response ("Yes") is assigned a value of 1 point.
  • Each negative response ("No") is assigned a value of 0 points.
  • There are no reverse-scored items.
  • Subscale scores are calculated by summing affirmative responses within each respective subscale.
  • Total SP score range: 0 to 24.
  • Total SR score range: 0 to 24.
• Administration Time: Approximately 8 to 12 minutes.

11. Permissions & Fee and Test Year

The Sensitivity to Punishment and Sensitivity to Reward Questionnaire was published in 2001. The instrument is considered an open-access psychometric instrument for non-commercial academic, educational, and clinical research purposes. In accordance with standard academic dissemination practices, the scale items were published directly within the peer-reviewed article in Personality and Individual Differences (Torrubia et al., 2001).

Researchers wishing to use the scale in non-profit empirical investigations or individual clinical assessments may do so without licensing fees, provided that appropriate bibliographic citation is accorded to the original authors. For commercial applications, software implementations, or sponsored clinical trial uses, permission should be requested from the primary authors or the copyright holder (Elsevier Ltd.).

12. References

• Ávila, C. (2001). Distinguishing BIS-mediated and BAS-mediated disinhibition mechanisms: A comparison of Gray’s and Newman’s models. Personality and Individual Differences, 31(7), 1105–1119. https://doi.org/10.1016/S0191-8869(00)00208-4
• Carver, C. S., & White, T. L. (1994). Behavioral inhibition, behavioral activation, and affective responses to impending reward and punishment: The BIS/BAS Scales. Journal of Personality and Social Psychology, 67(2), 319–333. https://doi.org/10.1037/0022-3514.67.2.319
• Caseras, X., Ávila, C., & Torrubia, R. (2006). The measurement of individual differences in Behavioural Inhibition and Behavioural Activation Systems: A review. Psicothema, 18(3), 476–481.
• Cooper, A., & Gómez, R. (2008). The development and psychometric properties of the Sensitivity to Punishment and Sensitivity to Reward Questionnaire for Children (SPSRQ-C). Personality and Individual Differences, 45(2), 145–150. https://doi.org/10.1016/j.paid.2008.03.014
• Gray, J. A. (1970). The psychophysiological basis of introversion-extraversion. Behaviour Research and Therapy, 8(3), 249–266. https://doi.org/10.1016/0005-7967(70)90069-0
• Gray, J. A. (1982). The neuropsychology of anxiety: An enquiry into the functions of the septo-hippocampal system. Oxford University Press.
• Gray, J. A. (1987). Perspectives on anxiety and impulsivity: A commentary. Journal of Research in Personality, 21(4), 493–509. https://doi.org/10.1016/0092-6566(87)90036-5
• Gray, J. A., & McNaughton, N. (2000). The neuropsychology of anxiety: An enquiry into the functions of the septo-hippocampal system (2nd ed.). Oxford University Press.
• O’Connor, R. M. (2002). The factor structure of the Sensitivity to Punishment and Sensitivity to Reward Questionnaire. Personality and Individual Differences, 32(6), 979–987. https://doi.org/10.1016/S0191-8869(01)00103-6
• Torrubia, R., Ávila, C., Moltó, J., & Caseras, X. (2001). The Sensitivity to Punishment and Sensitivity to Reward Questionnaire (SPSRQ) as a measure of Gray’s anxiety and impulsivity dimensions. Personality and Individual Differences, 31(6), 837–862. https://doi.org/10.1016/S0191-8869(00)00183-5

13. Items of the Scale