To counter criticism of these views, Robert Gerard showed in his studies in 1958
that the different effects of blue and red on the organism could be measured by changes
in the central and automatic nervous systems. Ali, in 1972, supported these findings
by demonstrating differing levels of cortical arousal following the shining of blue and
red light directly into the eyes of ten normal subjects for six minutes. A different
approach taken by Lars Sivik (1970) demonstrated, using photo-simulation techniques,
that chromatic strength rather than hue affects the exciting or calming properties of
a colour. Kuller (1972) using full-scale spaces showed that strong and weak colours
appeared exciting and calming respectively.
The approaches of these four studies were very different. The first and second
used physiological measures using coloured light whilst the other two used semantic
differential analysis using pigments as the colour stimulation. The first two showed
pure coloured light in a laboratory setting, the second two colour in the context of
indoor and outdoor settings. This study aims to bridge the gap between these sets of
experiments. Surface pigments in real environments were used, with long exposure
periods, using alpha rhythms recorded on EEG and EKG recordings to assess the level
of arousal. The objective of the setting was to make a closer simulation of the real-life
experience of the subjects.
Twenty-four subjects were exposed to four conditions in a room-sized environment:
a completely red visual field, a completely blue visual field, a visual field with the left
part blue and the right part red, and vice versa, each for twenty minutes. The measures
of chromatic strength and lightness of the blue and red were identical. The data
collected were analysed by means of several analyses of variance.
The most notable result of this study was that the central nervous system showed
no significant differences when red and blue spaces were experienced. These results
support, by the addition of confirming physiological data, Sivik’s and Kuller’s findings
that, chromatic strength and lightness being controlled, colour hues do not affect
excitement. This information will have important implications for design, as it contradicts
the guidance given in design manuals.
Text 2 (based on Freese et al., 1999, p. 207)
The lasting influences of a person’s position in the order of birth in a family have been
the subject of an extended and heated discussion in sociology and other disciplines.
In response to Sulloway’s (1996) Born to Rebel: Birth Order, Family Dynamics, and
Creative Lives, there has been an increase in interest in the likely influences of the
order of birth on social attitudes. In comparison with the variables of gender, class or
race, Sulloway found, through the use of quantitative and historical data, that birth
order is a better predictor of social attitudes. His original theory attests that the influence
of the order of birth is pervasive across time and society.
This study uses current data to test Sulloway’s assertion that adults who were born
the first in families are more authoritative and conservative and less subtle than those
born later. Taking 24 measures of social attitudes from the General Social Survey (GSS),
an examination of cases resulted in no evidence to support these assertions, neither
in terms of significant effects nor even in terms of the direction of non-significant
coefficients. As a result of further research, it was found that comparable results were
obtained using all (202) relevant attitudinal items on the GSS yields.
As a result, it was concluded that variables rejected by Sulloway, such as family
size, race, gender and social class, were all more strongly linked to social attitudes
than was the order of birth. Therefore it can be inferred that theories relating to the
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