A Neurobehaviorally Inspired ACT-R Model of Sleep Deprivation: Decreased Performance in Psychomotor Vigilance

نویسندگان

  • Glenn Gunzelmann
  • Kevin A. Gluck
  • Hans P. A. Van Dongen
  • David F. Dinges
چکیده

This paper describes how changes in architectural parameters in ACT-R can be used to understand and predict the effects of sleep deprivation on a fundamental aspect of human performance. In a sample task, the parameter manipulations produce changes in the model’s performance that closely resemble the neurobehavioral effects seen in human data. The parameter that is manipulated (G) influences a mechanism in ACT-R that is considered to be associated with the thalamus, an area that is sensitive to sleep deprivation.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Comparing Accounts of Psychomotor Vigilance Impairment Due to Sleep Loss

The effects of fatigue on cognitive processing are not fully understood. Computational modeling research has led to two distinct accounts of fatigue, and specifically its effects on psychomotor vigilance performance, which are both supported by empirical findings. The first account is based on ACT-R and posits that fatigue increases the probability of microlapses. A biomathmatical model of fati...

متن کامل

Two Ways to Model the Effects of Sleep Fatigue on Cognition

We compare how the same cognitive model completes a task within two alternative modifications to a cognitive architecture to represent sleep deprivation. One modification (ACT-R/F) has a module that uses a biomathematical model of the effects of sleep deprivation on performance to drive parameter changes in the architecture that impact behavior and performance. The second, new, modification (AC...

متن کامل

TNFα G308A polymorphism is associated with resilience to sleep deprivation-induced psychomotor vigilance performance impairment in healthy young adults.

Cytokines such as TNFα play an integral role in sleep/wake regulation and have recently been hypothesized to be involved in cognitive impairment due to sleep deprivation. We examined the effect of a guanine to adenine substitution at position 308 in the TNFα gene (TNFα G308A) on psychomotor vigilance performance impairment during total sleep deprivation. A total of 88 healthy women and men (age...

متن کامل

Comparison of sustained attention assessed by auditory and visual psychomotor vigilance tasks prior to and during sleep deprivation.

To date, no detailed examination of the pattern of change in reaction time performance for different sensory modalities has been conducted across the circadian cycle during sleep deprivation. Therefore, we compared sustained auditory and visual attention performance during 40h of sleep deprivation assessing multiple metrics of auditory and visual psychomotor vigilance tasks (PVT). Forty healthy...

متن کامل

Classifying vulnerability to sleep deprivation using baseline measures of psychomotor vigilance.

OBJECTIVES To identify measures derived from baseline psychomotor vigilance task (PVT) performance that can reliably predict vulnerability to sleep deprivation. DESIGN Subjects underwent total sleep deprivation and completed a 10-min PVT every 1-2 h in a controlled laboratory setting. Participants were categorized as vulnerable or resistant to sleep deprivation, based on a median split of lap...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2005