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Results for “TIME PERCEPTION”

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At least 181 records · Page 10Linked to original sources
PubMed2005

Loss of self-control in intertemporal choice may be attributable to logarithmic time-perception.

Impulsivity and loss of self-control in drug-dependent patients have been associated with the manner in which they discount delayed rewards. Although drugs of abuse have been shown to modify perceived time-duration, little is known regarding the relationship between impulsive decision-making in intertemporal choice and estimation of time-duration. In classical economic theory, it has been hypothesized that people discount future reward value exponentially. In exponential discounting, a temporal discounting rate is constant over time, which has been referred to as dynamic consistency. However, accumulating empirical evidence in biology, psychopharmacology, behavioral neuroscience, and neuroeconomics does not support the hypothesis. Rather, dynamically inconsistent manners of discounting delayed rewards, e.g., hyperbolic discounting, have been repeatedly observed in humans and non-human animals. In spite of recent advances in neuroimaging and neuropsychopharmacological study, the reason why humans and animals discount delayed rewards hyperbolically is unknown. In this study, we hypothesized that empirically-observed dynamical inconsistency in intertemporal choice may result from errors in the perception of time-duration. It is proposed that perception of temporal duration following Weber's law might explain the dynamical inconsistency. Possible future study directions for elucidating neural mechanisms underlying inconsistent intertemporal choice are discussed.

Animals↗
PubMed1993

An exploration of the interaction between variation in wavelength and time perception.

The interaction of color wavelength and perception was evaluated during two experiments. The first study used a time-estimation task which included controls for both stimulus duration and frequency. The second study required production of duration using the same colors and three time periods to be reproduced by the participant according to stimulus cues. Based upon previous research, it was hypothesized that exposure to long-wavelength stimuli would yield shorter time estimations than exposure to short-wavelength stimuli. The results supported the assumption that stimuli of different color wavelengths differentially alter perception and psychological activation; however, the effects were not related to systematic alterations of wavelength.

Adult↗
PubMed1989

["Spute dich, Kronos, fort den rasselnden Trott..." Reflections on time perception in the psychoanalytic process and at the end of life].

Referring to Goethe's Poem "An Schwager Kronos", the author tries to establish a relationship between the experience of time as lived through in the course of the psychoanalytic process as well as of time as experienced under the impression of the possibly approaching end of one's life. Psychoanalytic theory, however, has only limited possibilities to grasp "time" in psycho-dynamic or psycho-symbolic terms. Nevertheless, the changes in the experience of time, which take place in the course of a lifetime, can often be worked through in a psychoanalytic process focussing on loss, "fear of breakdown" (Winnicott) and hope. This working through contributes to the internalisation of the holding environment, i.e. good inner "saving" objects provided by the therapist. Episodes from Mozart's "Last Year" are used as clinical illustrations.

Attitude to Death↗
PubMed1986

Need for cognition related to time perception.

Undergraduates who scored high on need for cognition tended to underestimate a 90-sec. filled interval and their number of correct single solution anagrams tended to correlate negatively with estimated time. Subjects high in need for cognition reported the task was easy but enjoyment and prior experience were similar.

Adult↗
PubMed2001

Circadian time perception.

The variability of anticipating a meal was investigated. Sprague-Dawley rats earned food by inspecting a food source during a 3-hr interval. Food was not available at other times. In Experiment 1, the meal started 3 or 7 hr after light offset in a 12-hr light-dark cycle. Experiment 2 was conducted in constant darkness with 14-, 22-, 22.5-, 24-, 25.5-, 26-, or 34-hr intermeal intervals. Inspections increased before the meal. Rats timed intervals in the circadian range (22-26 hr) with lower variability than that for intervals outside this range (3-14 and 34 hr). Higher precision in timing selected intervals violates the scalar property. Proximity to a circadian oscillator improves timing precision. Variability may be used to identify oscillators with noncircadian periods.

Animals↗