Beyond a joke: From animal laughter to human joy?
1st paragraph of this short essay: In the beginning was the word…but was the word funny? Research suggests that the capacity for human laughter preceded the capacity
1st paragraph of this short essay: In the beginning was the word…but was the word funny? Research suggests that the capacity for human laughter preceded the capacity
Abundant evidence, often ignored in discussions of cognitive consciousness, is that raw affective experiences arise from diverse subcortical emotional, motivational (body homeostatic), and primal sensory
Deficits in social approach behavior, rough-and-tumble play, and speech abnormalities are core features of autism that can be modeled in laboratory rats. Human twin studies
The diagnosis of attention deficit hyperactivity disorders (ADHD) has been increasing at an alarming rate, paralleled by the prescription of highly effective psychostimulants whose developmental
The scientific study of empathy has exploded in the past decade. Practically all of the relevant sciences – from various neuroscientific, psychological and sociological perspectives
Some investigators have argued that emotions, especially animal emotions, are illusory concepts outside the realm of scientific inquiry. However, with advances in neurobiology and neuroscience,
Evidence for basic brain systems that mediate affective-emotional processes is summarized. The key to understanding the fundamental sources of human emotions lies in unraveling the
Cross-species affective neuroscience aspires to provide an evidence-based foundation for understanding the primary-process emotional networks that concurrently control instinctual emotional actions and affective feelings-direct emotional
In rats, hedonic ultrasonic vocalizations (USVs) is a validated model of positive affect and is best elicited by rough-and-tumble play. Here we report that modulation
Rat 22-kHz ultrasonic vocalizations (USVs) are exhibited in response to a wide variety of stimuli. Recently, we have shown that, depending on the internal state
Background: Positive emotions have been shown to induce resilience to depression and anxiety in humans, as well as increase cognitive abilities (learning, memory and problem
Evidence for the hypothesis that brain-opioids mediate social affect and social attachments is summarized. Opiates and opioids are very effective in reducing social separation-induced distress
Rats make abundant 50 kHz ultrasonic vocalizations (USVs) when they play and exhibit other positive social interactions. This response can be dramatically increased by tickling
The social play of pairs of juvenile rats can be brought under tight experimental control using social deprivation, and it can be objectively quantified by
The social play of juvenile rats was observed following administration of either the ?-2-adrenergic agonist clonidine (0.1, 0.5, 1, 5, 10, and 50 ?g/kg) or
The field of cognitive psychology is in a state of empirical abundance, and experts now know more about mammalian brain function than ever before. In
Rough and tumble (R&T) play is a unique set of behaviors that can be reliably distinguished from aggression and other childhood activities. Although it may
Play behavior is a fundamental and intrinsic neurobehavioral process in the mammalian brain. Using rough-and-tumble play in the juvenile rat as a model system to
Cal Izard has provided psychology a robust vision of human emotional feelings. He has addressed the full spectrum of emotional-developmental-cognitive complexities entailed in clarifying seemingly
The present article highlights important concepts of personality including stability issues from the perspective of situational demands and stability over the life-course. Following this more
