Overview

Sherwood’s research program addresses a fundamental question in parapsychology: what psychological and cognitive characteristics enable individuals to demonstrate psi abilities in laboratory settings? Rather than treating psi as a uniform phenomenon equally distributed across the population, Sherwood has developed a systematic empirical approach to mapping the personality and cognitive correlates of precognitive and telepathic performance.

This work operates within the broader context of individual differences research in parapsychology, which recognizes that psi effects are neither universal nor uniform. By identifying which personality traits, cognitive styles, and interpersonal conditions optimize psi expression, Sherwood’s investigations contribute to both theoretical understanding of psi mechanisms and practical improvements in experimental design. His studies employ rigorous quantitative methods, often using implicit or nonintentional psi tasks that minimize conscious effort and expectancy effects, thereby isolating more fundamental cognitive processes underlying anomalous cognition.

Personality traits and precognition

Sherwood’s investigations into personality correlates of precognitive ability have focused particularly on openness to experience and creativity. In a reexamination of nonintentional precognition performance, Sherwood and colleagues found that participants scoring higher on openness to experience and creativity measures demonstrated significantly better task performance.¹ These findings align with theoretical predictions that cognitive flexibility and tolerance for novel or ambiguous information facilitate the emergence of psi phenomena in experimental contexts.

The relationship between openness and psi performance suggests that individuals with broader cognitive horizons and greater receptivity to unconventional experiences may be better positioned to access precognitive information. This personality dimension has long been theorized as relevant to psi, but Sherwood’s work provided empirical quantification of this relationship in a controlled precognition paradigm. The inclusion of creativity as a related predictor further supports the hypothesis that divergent thinking styles (characteristic of creative individuals) enhance precognitive performance.

Sherwood also examined psi beliefs and luck beliefs as personality-adjacent factors influencing precognitive outcomes. The relationship between these metacognitive attitudes and actual psi performance proved more nuanced than simple belief-performance correlations might suggest, pointing toward the importance of distinguishing between explicit beliefs and implicit cognitive processes in understanding psi expression.

Cognitive factors and latent inhibition

One of Sherwood’s most distinctive contributions has been the investigation of latent inhibition as a cognitive predictor of psi performance. Latent inhibition refers to the cognitive ability to suppress attention to stimuli that have previously been experienced as irrelevant or uninformative. This mechanism is thought to enhance cognitive efficiency by filtering out background noise and focusing processing resources on novel or task-relevant information.

In a study examining the relationship between latent inhibition and nonintentional precognition performance, Sherwood and colleagues discovered that lower latent inhibition (that is, reduced ability to filter irrelevant stimuli) correlated with better precognitive outcomes.² This counterintuitive finding suggests that in the context of psi tasks, the cognitive flexibility to remain responsive to subtle or unexpected information sources may facilitate precognitive access. Individuals with lower latent inhibition may be less likely to dismiss weak or ambiguous signals that could carry precognitive information.

This result has important theoretical implications. It suggests that psi performance may not benefit from the same cognitive filtering mechanisms that optimize performance in conventional tasks requiring focused attention and stimulus discrimination. Instead, precognitive ability may depend on a more permeable cognitive boundary between signal and noise, allowing precognitive information to penetrate conscious awareness despite its weak or unconventional nature.

Experimenter effects and interpersonal climate

Sherwood’s work has consistently emphasized the role of interpersonal dynamics and experimenter effects in shaping psi task outcomes. In a study of experimenter-participant interaction qualities in a goal-oriented nonintentional precognition task, Sherwood and colleagues found that the quality of interaction between experimenter and participant significantly predicted precognitive performance.⁵ Positive interpersonal dynamics (characterized by rapport, clear communication, and mutual respect) enhanced precognitive outcomes, while negative or strained interactions diminished performance.

This finding underscores a critical dimension of psi research methodology: the experimental climate is not merely a contextual backdrop but an active ingredient in psi task outcomes. The experimenter’s demeanor, expectations, and interpersonal skill directly influence whether participants can access and express precognitive abilities. This has profound implications for experimental design, suggesting that experimenter training and interpersonal competence should be considered core methodological variables rather than peripheral concerns.

Sherwood’s earlier investigation of interpersonal psi in ganzfeld telepathy tasks further elaborated this theme.⁶ The study explored how the experimenter’s role and the broader experimental climate influenced telepathic performance. Results demonstrated that the interpersonal context (including experimenter expectations, warmth, and engagement) shaped telepathic outcomes, suggesting that psi phenomena may be fundamentally relational in nature, emerging through the quality of connection between experimenter and participant.

Luck beliefs and psi performance

Sherwood’s investigation of the relationship between perceived luckiness, luck beliefs, and precognitive performance revealed an intriguing connection between metacognitive awareness and psi expression. In a study examining how participants’ sense of personal luckiness and their explicit beliefs about luck correlated with precognition task performance, Sherwood and colleagues found that perceived luckiness predicted better precognitive outcomes.⁴

This finding suggests that psi may phenomenologically resemble luck to those who experience it. Individuals who perceive themselves as lucky may be more attuned to coincidences, synchronicities, and subtle patterns that could reflect precognitive access. Alternatively, the belief in one’s own luckiness may create a psychological stance (characterized by openness, expectancy, and reduced skepticism) that facilitates psi expression. The relationship between luck beliefs and precognition also raises questions about how psi phenomena are cognitively represented and integrated into self-understanding.

Emotional lability and task-dependent performance

Sherwood’s research on emotional lability (the tendency toward mood variability and emotional reactivity) revealed a nuanced relationship with precognitive performance that depends on task structure. In studies examining both intentional and nonintentional versions of precognition tasks, emotional lability predicted differential performance across task types.³⁷

This task-dependent effect suggests that emotional regulation and stability may facilitate performance when conscious intention and focused effort are required (intentional tasks), while emotional variability may enhance performance in implicit or nonintentional contexts where relaxed, diffuse attention is more adaptive. The finding highlights the importance of matching participant characteristics to task demands and suggests that psi performance is not a unitary phenomenon but varies as a function of both individual differences and experimental parameters.

Methodological contributions

Beyond specific empirical findings, Sherwood’s work has made important methodological contributions to parapsychology research. His emphasis on nonintentional or implicit psi tasks represents a strategic methodological choice designed to minimize conscious expectancy effects and deliberate effort, thereby isolating more fundamental cognitive processes. By using tasks where participants are not explicitly instructed to demonstrate psi ability, Sherwood’s protocols reduce the likelihood that conscious beliefs, motivation, or performance anxiety will confound results.

The systematic measurement of personality, cognitive, and interpersonal variables alongside psi task performance exemplifies a multivariate approach to understanding individual differences. Rather than examining single predictors in isolation, Sherwood’s studies typically assess multiple personality dimensions, cognitive measures, and contextual factors simultaneously, providing a more comprehensive picture of the factors influencing psi expression.

Sherwood’s attention to experimenter effects and interpersonal climate also reflects a sophisticated understanding of research methodology. By treating the experimenter-participant relationship as a measurable variable rather than a confound to be eliminated, Sherwood’s work acknowledges the inherently relational nature of psi phenomena and incorporates this insight into research design.

Theoretical implications

Collectively, Sherwood’s findings suggest several theoretical insights about the nature of psi and its relationship to personality and cognition. First, the pattern of results indicates that psi is not a unitary ability uniformly distributed across the population, but rather emerges differentially depending on personality characteristics, cognitive styles, and interpersonal contexts. This supports a multifactorial model of psi in which multiple psychological dimensions contribute to psi expression.

Second, the finding that lower latent inhibition and higher openness to experience predict better precognitive performance suggests that psi may benefit from cognitive styles characterized by permeability and flexibility rather than rigid filtering. This contrasts with many conventional cognitive tasks and implies that psi operates according to different cognitive principles than those governing ordinary perception and cognition.

Third, the consistent importance of experimenter effects and interpersonal climate points toward a relational or interactive model of psi in which the phenomenon emerges through the quality of connection and communication between experimenter and participant. This perspective aligns with theoretical frameworks emphasizing the role of consciousness, intention, and relational dynamics in psi phenomena.