226 The Metaphor TIME AS SPACE across Languages 1 The domains of space and time

The impact of spatial orientation on human thought and, in particular, our understanding of time has often been noted. 1 Lakoff (1993: 218) assumes that our metaphorical understanding of time in terms of space is biologically determined: “In our visual systems, we have detectors for motion and detectors for objects/locations. We do not have detectors for time (whatever that could mean). Thus, it makes good biological sense that time should be understood in terms of things and motion. ” This explanation is not fully convincing because there is empirical evidence that humans directly perceive and “feel ” the passage of time (see Evans, in print). Our direct experience of time is subjective and may, therefore, be strikingly different from objective time. Thus, a given duration of time is experienced as lasting longer or shorter depending on our state of awareness and the amount of information registered. For example, the duration of time in situations of heightened awareness and high information processing such as during times of suffering or danger is experienced as passing more slowly, while in situations of low information processing, such as during routine activities, time appears to pass more quickly. Evans convincingly argues that our experience of time results from internal, subjective responses to external sensory stimuli and that by imparting spatio-physical “image content ” to a subjectiv