Study: NCT02615119

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Isoproterenol
Description: Intravenous infusions of isoproterenol, delivered in a randomized double blinded order, in each participant from each group. Participants will rate the experience of heartbeat and breathing sensations as well as anxiety induced by the infusion.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Isoproterenol
Description: Intravenous infusions of isoproterenol, delivered in a randomized double blinded order, in each participant from each group. Participants will rate the experience of heartbeat and breathing sensations as well as anxiety induced by the infusion.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Isoproterenol
Description: Intravenous infusions of isoproterenol, delivered in a randomized double blinded order, in each participant from each group. Participants will rate the experience of heartbeat and breathing sensations as well as anxiety induced by the infusion.

Intervention type: DRUG
Group type: ACTIVE_COMPARATOR
Intervention: Isoproterenol
Description: Intravenous infusions of isoproterenol, delivered in a randomized double blinded order, in each participant from each group. Participants will rate the experience of heartbeat and breathing sensations as well as anxiety induced by the infusion.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Isoproterenol
Description: Intravenous infusions of isoproterenol, delivered in a randomized double blinded order, in each participant from each group. Participants will rate the experience of heartbeat and breathing sensations as well as anxiety induced by the infusion.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Isoproterenol
Description: Intravenous infusions of isoproterenol, delivered in a randomized double blinded order, in each participant from each group. Participants will rate the experience of heartbeat and breathing sensations as well as anxiety induced by the infusion.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Normal saline
Description: Intravenous infusions of normal saline, delivered in a randomized double blinded order, in each participant from each group. Participants will rate the experience of heartbeat and breathing sensations as well as anxiety induced by the infusion.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Normal saline
Description: Intravenous infusions of normal saline, delivered in a randomized double blinded order, in each participant from each group. Participants will rate the experience of heartbeat and breathing sensations as well as anxiety induced by the infusion.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Normal saline
Description: Intravenous infusions of normal saline, delivered in a randomized double blinded order, in each participant from each group. Participants will rate the experience of heartbeat and breathing sensations as well as anxiety induced by the infusion.

Intervention type: DRUG
Group type: ACTIVE_COMPARATOR
Intervention: Normal saline
Description: Intravenous infusions of normal saline, delivered in a randomized double blinded order, in each participant from each group. Participants will rate the experience of heartbeat and breathing sensations as well as anxiety induced by the infusion.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Normal saline
Description: Intravenous infusions of normal saline, delivered in a randomized double blinded order, in each participant from each group. Participants will rate the experience of heartbeat and breathing sensations as well as anxiety induced by the infusion.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Normal saline
Description: Intravenous infusions of normal saline, delivered in a randomized double blinded order, in each participant from each group. Participants will rate the experience of heartbeat and breathing sensations as well as anxiety induced by the infusion.