The metacognitions of climate change

How do individuals think about global climate change? Although a body of research on the cognitive elements of climate change has begun to accumulate (e.g., Bord, O'Connor, & Fisher, 2000, few studies have distinguished between categories of cognitions. One key distinction is between primary, direct thoughts such as perceptions and evaluations, and secondary, indirect thoughts which reflect upon and control primary cognitions (Petty, Brinol, Tormala, & Wegner, 2007); secondary thoughts are thus considered metacognitive. This distinction is important to climate change engagement given that primary and secondary thoughts may exert independent effects on behavior. Three metacognitive elements of climate change are delineated: metacognitive knowledge, or assessments of confidence in one's thoughts; metacognitive certainty, or assessments of the likelihood of an outcome; and metacognitive importance, or the relative emphasis placed on one's thoughts. The relations between these dimensions and climate change-relevant behaviors are explored. Possibilities for future research are also discussed.     

The intergenerational transmission of social dominance: A three‐generation study

This study examined the transmission of social dominance orientation (SDO) from parents and grandparents to children. It was predicted that parents as well as grandparents would pass their social dominance attitudes to children. Children's levels of SDO would thus be the highest when parental and grandparental attitudes are high; the lowest when parental and grandparental attitudes are low; and intermediate when parental and grandparental attitudes are incongruent. These hypotheses were examined in a sample of 93 families including children (in early adulthood), one of their parents, and one of their grandparents. Results yielded support for the predictions. These findings' implications are discussed in terms of their potential to explain previous inconsistent results on the transmission of social attitudes to children. Copyright © 2008 John Wiley & Sons, Ltd.     

Eye-blink conditioning is associated with changes in synaptic ultrastructure in the rabbit interpositus nuclei

Eye-blink conditioning involves the pairing of a conditioned stimulus (usually a tone) to an unconditioned stimulus (air puff), and it is well established that an intact cerebellum and interpositus nucleus, in particular, are required for this form of classical conditioning. Changes in synaptic number or structure have long been proposed as a mechanism that may underlie learning and memory, but localizing these changes has been difficult. Thus, the current experiment took advantage of the large amount of research conducted on the neural circuitry that supports eye-blink conditioning by examining synaptic changes in the rabbit interpositus nucleus. Synaptic quantifications included total number of synapses per neuron, numbers of excitatory versus inhibitory synapses, synaptic curvature, synaptic perforations, and the maximum length of the synapses. No overall changes in synaptic number, shape, or perforations were observed. There was, however, a significant increase in the length of excitatory synapses in the conditioned animals. This increase in synaptic length was particularly evident in the concave-shaped synapses. These results, together with previous findings, begin to describe a sequence of synaptic change in the interpositus nuclei following eye-blink conditioning that would appear to begin with structural change and end with an increase in synaptic number.